RAM Vehicle Models Ram ProMaster 2014-present
RAM Vehicle Models Ram ProMaster 2014-present Torque Specifications
Complete RAM Vehicle Models Ram ProMaster 2014-present torque specifications guide. Includes factory-specified torque values, torque sequences, and technical specifications for all components including body, brakes, drivetrain, electrical, emissions sensors, fuel, exhaust, HVAC, and suspension. Essential information for proper assembly and maintenance.
Updated
Important Information
Safety guidelines and reference information for proper torque application
Safety First
- Always verify torque specifications with your vehicle's factory service manual
- Use properly calibrated torque wrenches
- Replace all torque-to-yield (TTY) bolts - they are single-use only
- When in doubt, consult a professional mechanic
Quick Reference Guide
Quick Reference Guide
ft-lbs → Nm
× 1.356
ft-lbs → kg-m
× 0.138
Nm → ft-lbs
× 0.738
in-lbs → ft-lbs
× 0.083
Common Torque Patterns
Star Pattern
Used for wheels and other circular bolt patterns
Cross Pattern
Used for gaskets and cover plates
Sequential Pattern
Used for head bolts and other critical components
Common Mistakes to Avoid
Common Mistakes to Avoid
Over-tightening
Exceeding the specified torque value can stretch or break fasteners, damage threads, or crack components.
Prevention:
Always use a calibrated torque wrench and follow specifications exactly.
Incorrect Torque Sequence
Tightening bolts in the wrong order can cause uneven pressure distribution and potential leaks or damage.
Prevention:
Follow the manufacturer's specified torque sequence pattern.
Dirty Threads
Dirt, rust, or old thread locker can affect torque readings and proper fastener tension.
Prevention:
Clean and inspect all threads before assembly. Use new thread locker if specified.
Reusing TTY Bolts
Torque-to-yield bolts are designed to stretch and must not be reused.
Prevention:
Always replace TTY bolts with new ones. They are single-use only.
Dry vs. Lubricated
Not accounting for whether torque specs are for dry or lubricated fasteners can lead to incorrect tension.
Prevention:
Check if specs are for dry or lubricated threads. Use specified lubricant when required.
Recommended Tools
Recommended Tools
Torque Wrench (1/4" Drive)
Range: 2-25 ft-lbs
Small fasteners, delicate components
Torque Wrench (3/8" Drive)
Range: 10-100 ft-lbs
Most common automotive fasteners
Torque Wrench (1/2" Drive)
Range: 30-250 ft-lbs
Large fasteners, wheels
Angle Gauge
Torque-to-yield (TTY) bolts
Torque Wrench Care
- Calibrate annually or after 5,000 clicks
- Store at lowest setting
- Keep clean and lubricated
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Torque Calculator
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3.0l I4 Diesel Engine
Torque specifications for 3.0L-I4-DIESEL Engine
3.0l I4 Diesel Engine
Torque specifications for 3.0L-I4-DIESEL Engine
Cylinder Head and Valvetrain
1 Cylinder Head Bolts
M12 x 1.5
1
Cylinder Head Bolts
M12 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
2 Valve Cover Bolts
M8 x 1.25
2
Valve Cover Bolts
M8 x 1.25
Torque Specification
72 in-lbs (8 N·m)
3 Rocker Arms/Shafts Bolts
M10 x 1.5
3
Rocker Arms/Shafts Bolts
M10 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Engine Block and Crankshaft
1 Main Bearing Bolts
M14 x 2.0
1
Main Bearing Bolts
M14 x 2.0
Torque Specification
100 ft-lbs (136 N·m)
2 Connecting Rod Nuts
M12 x 1.5
2
Connecting Rod Nuts
M12 x 1.5
Torque Specification
50 ft-lbs (68 N·m)
3 Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 2.0
3
Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 2.0
Torque Specification
100 ft-lbs (136 N·m)
Timing and Accessory Drive
1 Timing Belt/Chain Tensioner Bolt
M10 x 1.5
1
Timing Belt/Chain Tensioner Bolt
M10 x 1.5
Torque Specification
27 ft-lbs (37 N·m)
2 Camshaft Sprocket Bolt
M12 x 1.5
2
Camshaft Sprocket Bolt
M12 x 1.5
Torque Specification
75 ft-lbs (102 N·m)
3 Serpentine/Accessory Drive Belt Tensioner Bolt
M12 x 1.5
3
Serpentine/Accessory Drive Belt Tensioner Bolt
M12 x 1.5
Torque Specification
28 ft-lbs (38 N·m)
Intake and Exhaust
1 Intake Manifold Bolts
M10 x 1.5
1
Intake Manifold Bolts
M10 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
2 Exhaust Manifold/Header Bolts
M12 x 1.5
2
Exhaust Manifold/Header Bolts
M12 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
3 EGR Valve Bolts
M8 x 1.25
3
EGR Valve Bolts
M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Fuel System
1 Fuel Rail Bolts
M8 x 1.25
1
Fuel Rail Bolts
M8 x 1.25
Torque Specification
89 in-lbs (10 N·m)
2 Fuel Injector Bolts
M8 x 1.25
2
Fuel Injector Bolts
M8 x 1.25
Torque Specification
89 in-lbs (10 N·m)
3 High-Pressure Fuel Pump Bolts
M10 x 1.5
3
High-Pressure Fuel Pump Bolts
M10 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value, consult a repair manual for confirmation.
Cooling System
1 Water Pump Bolts
M10 x 1.5
1
Water Pump Bolts
M10 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
2 Thermostat Housing Bolts
M10 x 1.5
2
Thermostat Housing Bolts
M10 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Electrical and Accessory
1 Starter Motor Mounting Bolts
M12 x 1.5
1
Starter Motor Mounting Bolts
M12 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
2 Alternator Mounting Bolts
M12 x 1.5
2
Alternator Mounting Bolts
M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
3 A/C Compressor Mounting Bolts
M12 x 1.5
3
A/C Compressor Mounting Bolts
M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Turbocharger and Exhaust
1 Turbocharger Mounting Bolts
M12 x 1.5
1
Turbocharger Mounting Bolts
M12 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value, consult a repair manual for confirmation.
2 Turbocharger Oil Feed Line Bolts
M10 x 1.5
2
Turbocharger Oil Feed Line Bolts
M10 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value, consult a repair manual for confirmation.
3 Turbocharger Exhaust Outlet Bolts
M12 x 1.5
3
Turbocharger Exhaust Outlet Bolts
M12 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Estimated value, consult a repair manual for confirmation.
3.6l Engine
Torque specifications for 3.6L Engine
3.6l Engine
Torque specifications for 3.6L Engine
Cylinder Head and Engine Block
1 Cylinder Head Bolts
M12 x 1.5
1
Cylinder Head Bolts
M12 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
2 Cylinder Head Studs
M14 x 1.5
2
Cylinder Head Studs
M14 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Estimated value based on industry standards.
Main Bearings and Crankshaft
1 Main Bearing Bolts
M16 x 1.5
1
Main Bearing Bolts
M16 x 1.5
Torque Specification
100 ft-lbs (136 N·m)
2 Crankshaft Pulley/Harmonic Balancer Bolt
M18 x 1.5
2
Crankshaft Pulley/Harmonic Balancer Bolt
M18 x 1.5
Torque Specification
100 ft-lbs (136 N·m)
Valvetrain and Timing System
1 Valve Cover Bolts
M10 x 1.5
1
Valve Cover Bolts
M10 x 1.5
Torque Specification
72 in-lbs (8 N·m)
2 Timing Belt/Chain Tensioner Bolt
M12 x 1.5
2
Timing Belt/Chain Tensioner Bolt
M12 x 1.5
Torque Specification
27 ft-lbs (37 N·m)
3 Camshaft Sprocket Bolt
M14 x 1.5
3
Camshaft Sprocket Bolt
M14 x 1.5
Torque Specification
75 ft-lbs (102 N·m)
Engine Mounts and Transmission
1 Engine Mounting Bolts
M14 x 1.5
1
Engine Mounting Bolts
M14 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Estimated value based on industry standards.
2 Engine Block to Transmission Bellhousing Bolts
M16 x 1.5
2
Engine Block to Transmission Bellhousing Bolts
M16 x 1.5
Torque Specification
50 ft-lbs (68 N·m)
Important Notes
Estimated value based on industry standards.
Accessory Drive System
1 Accessory Drive Belt Tensioner Pulley Bolt
M12 x 1.5
1
Accessory Drive Belt Tensioner Pulley Bolt
M12 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value based on industry standards.
Intake and Exhaust System
1 Intake Manifold Bolts
M10 x 1.5
1
Intake Manifold Bolts
M10 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
2 Exhaust Manifold/Headers Bolts
M12 x 1.5
2
Exhaust Manifold/Headers Bolts
M12 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
Fuel System
1 Fuel Rail Bolts
M10 x 1.5
1
Fuel Rail Bolts
M10 x 1.5
Torque Specification
89 in-lbs (10 N·m)
2 Fuel Injector Bolts
M10 x 1.5
2
Fuel Injector Bolts
M10 x 1.5
Torque Specification
89 in-lbs (10 N·m)
Ignition System
1 Spark Plugs
M14 x 1.25
1
Spark Plugs
M14 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
2 Ignition Coil Bolt
M10 x 1.5
2
Ignition Coil Bolt
M10 x 1.5
Torque Specification
72 in-lbs (8 N·m)
Cooling System
1 Water Pump Bolts
M10 x 1.5
1
Water Pump Bolts
M10 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
2 Thermostat Housing Bolts
M10 x 1.5
2
Thermostat Housing Bolts
M10 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
3.6l V6 Engine
Torque specifications for 3.6L-V6 Engine
3.6l V6 Engine
Torque specifications for 3.6L-V6 Engine
Cylinder Head and Engine Block
1 Cylinder Head Bolts
M12 x 1.5
1
Cylinder Head Bolts
M12 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
2 Cylinder Head Studs
M14 x 1.5
2
Cylinder Head Studs
M14 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Estimated value based on industry standards.
Main Bearings and Crankshaft
1 Main Bearing Bolts
M16 x 1.5
1
Main Bearing Bolts
M16 x 1.5
Torque Specification
100 ft-lbs (136 N·m)
2 Crankshaft Pulley/Harmonic Balancer Bolt
M18 x 1.5
2
Crankshaft Pulley/Harmonic Balancer Bolt
M18 x 1.5
Torque Specification
100 ft-lbs (136 N·m)
Valvetrain and Timing System
1 Valve Cover Bolts
M10 x 1.5
1
Valve Cover Bolts
M10 x 1.5
Torque Specification
72 in-lbs (8 N·m)
2 Timing Belt/Chain Tensioner Bolt
M12 x 1.5
2
Timing Belt/Chain Tensioner Bolt
M12 x 1.5
Torque Specification
27 ft-lbs (37 N·m)
3 Camshaft Sprocket Bolt
M14 x 1.5
3
Camshaft Sprocket Bolt
M14 x 1.5
Torque Specification
75 ft-lbs (102 N·m)
Engine Mounts and Transmission
1 Engine Mounting Bolts
M14 x 1.5
1
Engine Mounting Bolts
M14 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Estimated value based on industry standards.
2 Engine Block to Transmission Bellhousing Bolts
M16 x 1.5
2
Engine Block to Transmission Bellhousing Bolts
M16 x 1.5
Torque Specification
50 ft-lbs (68 N·m)
Important Notes
Estimated value based on industry standards.
Accessory Drive System
1 Accessory Drive Belt Tensioner Pulley Bolt
M12 x 1.5
1
Accessory Drive Belt Tensioner Pulley Bolt
M12 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value based on industry standards.
Intake and Exhaust System
1 Intake Manifold Bolts
M10 x 1.5
1
Intake Manifold Bolts
M10 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
2 Exhaust Manifold/Headers Bolts
M12 x 1.5
2
Exhaust Manifold/Headers Bolts
M12 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
Fuel System
1 Fuel Rail Bolts
M10 x 1.5
1
Fuel Rail Bolts
M10 x 1.5
Torque Specification
89 in-lbs (10 N·m)
2 Fuel Injector Bolts
M10 x 1.5
2
Fuel Injector Bolts
M10 x 1.5
Torque Specification
89 in-lbs (10 N·m)
Ignition System
1 Spark Plugs
M14 x 1.25
1
Spark Plugs
M14 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
2 Ignition Coil Bolt
M10 x 1.5
2
Ignition Coil Bolt
M10 x 1.5
Torque Specification
72 in-lbs (8 N·m)
Cooling System
1 Water Pump Bolts
M10 x 1.5
1
Water Pump Bolts
M10 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
2 Thermostat Housing Bolts
M10 x 1.5
2
Thermostat Housing Bolts
M10 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
62te Transmission
Torque specifications for 62te Transmission
62te Transmission
Torque specifications for 62te Transmission
Transmission Mounting
1 Transmission Mounting Bolts
M12 x 1.5
1
Transmission Mounting Bolts
M12 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Proper torque ensures the transmission is securely mounted, preventing misalignment or vibration issues.
Transmission Oil Pan
1 Transmission Oil Pan Bolts
M10 x 1.25
1
Transmission Oil Pan Bolts
M10 x 1.25
Torque Specification
13 ft-lbs (18 N·m)
Important Notes
Proper torque prevents leaks and ensures the pan is sealed correctly.
Transmission Fluid System
1 Transmission Drain and Fill Plugs
M14 x 1.5
1
Transmission Drain and Fill Plugs
M14 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Proper torque prevents leaks and ensures the plugs are securely seated.
2 Transmission Cooler Line Fittings
M12 x 1.25
2
Transmission Cooler Line Fittings
M12 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Proper torque prevents fluid leaks and ensures proper fluid flow for cooling.
Drive Axle and Half Shaft
1 Drive Axle/Half Shaft Bolts
M14 x 1.5
1
Drive Axle/Half Shaft Bolts
M14 x 1.5
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Proper torque ensures the axles are securely connected, preventing driveline vibration or disconnection.
2 CV Joint/Axle Nut
M20 x 1.5
2
CV Joint/Axle Nut
M20 x 1.5
Torque Specification
185 ft-lbs (251 N·m)
Important Notes
Proper torque ensures the axle is properly seated and prevents loosening during operation.
Propeller/Drive Shaft
1 Propeller/Drive Shaft Bolts
M12 x 1.25
1
Propeller/Drive Shaft Bolts
M12 x 1.25
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Proper torque ensures the drive shaft is securely connected, preventing driveline vibration or disconnection.
Starter Motor Mounting
1 Starter Motor Mounting Bolts
M10 x 1.25
1
Starter Motor Mounting Bolts
M10 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Proper torque ensures the starter is properly aligned and securely mounted.
Torque Converter
1 Torque Converter Bolts
M12 x 1.5
1
Torque Converter Bolts
M12 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Proper torque ensures the torque converter is securely attached, preventing misalignment or damage to the transmission and engine.
Transmission Bell Housing
1 Transmission Bell Housing Bolts
M12 x 1.5
1
Transmission Bell Housing Bolts
M12 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Proper torque ensures proper alignment and prevents leaks or misalignment between the engine and transmission.
Transmission Valve Body
1 Transmission Valve Body Bolts
M8 x 1.25
1
Transmission Valve Body Bolts
M8 x 1.25
Torque Specification
89 in-lbs (10 N·m)
Important Notes
Proper torque ensures the valve body is securely mounted, preventing fluid leaks and ensuring proper hydraulic operation.
Transmission Shift Linkage
1 Transmission Shift Linkage Bolts
M10 x 1.25
1
Transmission Shift Linkage Bolts
M10 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Proper torque ensures the linkage is securely connected, preventing shifting issues or disconnection.
Body
Torque specifications for Body
Body
Torque specifications for Body
Body Mounts
1 Body Mount Bolts
M12 x 1.5
1
Body Mount Bolts
M12 x 1.5
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value based on typical body mount bolt specifications. Torque sequence is critical to avoid warping the body.
Fenders
1 Fender Bolts
M8 x 1.25
1
Fender Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value based on typical fender bolt specifications.
Hood Hinges
1 Hood Hinge Bolts
M10 x 1.25
1
Hood Hinge Bolts
M10 x 1.25
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Estimated value based on typical hood hinge bolt specifications.
Door Hinges
1 Door Hinge Bolts
M10 x 1.25
1
Door Hinge Bolts
M10 x 1.25
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Estimated value based on typical door hinge bolt specifications.
Bumper Mounts
1 Bumper Mounting Bolts
M10 x 1.5
1
Bumper Mounting Bolts
M10 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Estimated value based on typical bumper mounting bolt specifications.
Roof Rack
1 Roof Rack Mounting Bolts
M8 x 1.25
1
Roof Rack Mounting Bolts
M8 x 1.25
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Estimated value based on typical roof rack mounting bolt specifications.
Side Mirrors
1 Side Mirror Mounting Bolts
M6 x 1.0
1
Side Mirror Mounting Bolts
M6 x 1.0
Torque Specification
13 ft-lbs (18 N·m)
Important Notes
Estimated value based on typical side mirror mounting bolt specifications.
Brakes
Torque specifications for Brakes
Brakes
Torque specifications for Brakes
Brake Caliper
1 Brake Caliper Bolts
M14 x 1.5
1
Brake Caliper Bolts
M14 x 1.5
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Proper torque ensures the caliper is securely attached, preventing movement or misalignment that could lead to uneven braking or damage to the brake components.
2 Brake Caliper Mounting Bracket Bolts
M18 x 1.75
2
Brake Caliper Mounting Bracket Bolts
M18 x 1.75
Torque Specification
98 ft-lbs (133 N·m)
Important Notes
Correct torque is critical to ensure the bracket remains firmly in place, maintaining proper alignment of the brake pads and rotor.
Brake Disc Drum
1 Brake Disc/Drum Retaining Bolts
M16 x 1.5
1
Brake Disc/Drum Retaining Bolts
M16 x 1.5
Torque Specification
100 ft-lbs (136 N·m)
Important Notes
Proper torque ensures the rotor or drum remains securely attached, preventing wobbling or vibration during braking, which could compromise braking performance.
Brake Hoses
1 Brake Hose Banjo Bolt
M12 x 1.25
1
Brake Hose Banjo Bolt
M12 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Proper torque ensures a leak-free connection, maintaining hydraulic pressure in the brake system.
Brake Master Cylinder
1 Brake Master Cylinder Mounting Bolts
M14 x 1.5
1
Brake Master Cylinder Mounting Bolts
M14 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Proper torque ensures the master cylinder remains securely attached, preventing leaks or misalignment that could compromise brake system performance.
Brake Booster
1 Brake Booster Mounting Bolts
M16 x 1.5
1
Brake Booster Mounting Bolts
M16 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Proper torque ensures the booster remains firmly attached, maintaining proper brake pedal feel and hydraulic pressure.
Brake Pedal
1 Brake Pedal Assembly Bolts
M12 x 1.25
1
Brake Pedal Assembly Bolts
M12 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Proper torque ensures the pedal operates smoothly and maintains proper connection to the master cylinder pushrod.
Wheel Lug Nuts
1 Wheel Lug Nuts
M20 x 1.5
1
Wheel Lug Nuts
M20 x 1.5
Torque Specification
110 ft-lbs (149 N·m)
Important Notes
Proper torque ensures the wheel is securely attached, preventing movement that could affect brake rotor alignment or cause vibrations.
Drivetrain
Torque specifications for Drivetrain
Drivetrain
Torque specifications for Drivetrain
Engine Block and Crankshaft
1 Main Bearing Bolts
M14 x 1.5
1
Main Bearing Bolts
M14 x 1.5
Torque Specification
100 ft-lbs (136 N·m)
Important Notes
Proper torque ensures the bearings are seated correctly, preventing engine damage and premature wear.
2 Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 1.5
2
Crankshaft Pulley/Harmonic Balancer Bolt
M16 x 1.5
Torque Specification
100 ft-lbs (136 N·m)
Important Notes
Proper torque ensures the pulley or balancer is securely attached, preventing engine damage and premature wear.
Connecting Rods and Pistons
1 Connecting Rod Nuts
M12 x 1.25
1
Connecting Rod Nuts
M12 x 1.25
Torque Specification
50 ft-lbs (68 N·m)
Important Notes
Proper torque ensures the rods are securely attached, preventing engine damage and premature wear.
Flywheel and Clutch
1 Flywheel Bolts
M14 x 1.5
1
Flywheel Bolts
M14 x 1.5
Torque Specification
55 ft-lbs (75 N·m)
Important Notes
Proper torque ensures the flywheel is securely attached, preventing engine damage and premature wear.
Transmission and Transfer Case
1 Transmission Mounting Bolts
M12 x 1.25
1
Transmission Mounting Bolts
M12 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Proper torque ensures the transmission is securely attached, preventing damage and premature wear.
2 Transfer Case Mounting Bolts
M14 x 1.5
2
Transfer Case Mounting Bolts
M14 x 1.5
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Proper torque ensures the transfer case is securely attached, preventing damage and premature wear.
Differential and Axles
1 Differential Cover Bolts
M12 x 1.25
1
Differential Cover Bolts
M12 x 1.25
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Proper torque ensures the cover is securely attached, preventing leaks and damage.
2 Drive Axle/Half Shaft Bolts
M16 x 1.5
2
Drive Axle/Half Shaft Bolts
M16 x 1.5
Torque Specification
70 ft-lbs (95 N·m)
Important Notes
Proper torque ensures the axles or half shafts are securely attached, preventing damage and premature wear.
3 CV Joint/Axle Nut
M20 x 1.5
3
CV Joint/Axle Nut
M20 x 1.5
Torque Specification
185 ft-lbs (251 N·m)
Important Notes
Proper torque ensures the CV joint or axle is securely attached, preventing damage and premature wear.
Propeller/Drive Shaft
1 Propeller/Drive Shaft Bolts
M14 x 1.5
1
Propeller/Drive Shaft Bolts
M14 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
Important Notes
Proper torque ensures the shaft is securely attached, preventing damage and premature wear.
Electrical
Torque specifications for Electrical
Electrical
Torque specifications for Electrical
Alternator And Starter
1 Alternator Mounting Bolts
M12 x 1.5
1
Alternator Mounting Bolts
M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
2 Starter Motor Mounting Bolts
M10 x 1.25
2
Starter Motor Mounting Bolts
M10 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Battery And Terminals
1 Battery Terminal Nuts
M8 x 1.25
1
Battery Terminal Nuts
M8 x 1.25
Torque Specification
11 ft-lbs (15 N·m)
Ignition And Fuel Systems
1 Ignition Coil Mounting Bolts
M8 x 1.25
1
Ignition Coil Mounting Bolts
M8 x 1.25
Torque Specification
1. 10 ft-lbs (14 N·m)
2. 12 ft-lbs (16 N·m)
Important Notes
Estimated torque values based on general industry guidelines.
2 Fuel Pump Electrical Connector Bolts
M6 x 1.0
2
Fuel Pump Electrical Connector Bolts
M6 x 1.0
Torque Specification
1. 5 ft-lbs (7 N·m)
2. 7 ft-lbs (10 N·m)
Important Notes
Estimated torque values based on general industry guidelines.
A/C System
1 A/C Compressor Electrical Connector Bolts
M6 x 1.0
1
A/C Compressor Electrical Connector Bolts
M6 x 1.0
Torque Specification
1. 5 ft-lbs (7 N·m)
2. 7 ft-lbs (10 N·m)
Important Notes
Estimated torque values based on general industry guidelines.
Emissions Sensors
Torque specifications for Emissions_sensors
Emissions Sensors
Torque specifications for Emissions_sensors
EGR System
1 EGR Valve Bolts
M10 x 1.5
1
EGR Valve Bolts
M10 x 1.5
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Proper torque ensures the EGR valve operates correctly and maintains the correct seal.
Catalytic Converter
1 Catalytic Converter to Exhaust Pipe Bolts
M12 x 1.75
1
Catalytic Converter to Exhaust Pipe Bolts
M12 x 1.75
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Proper torque ensures a secure connection and prevents leaks.
Oxygen Sensors
1 Oxygen Sensor (O2 Sensor) Mounting Bolts
M8 x 1.25
1
Oxygen Sensor (O2 Sensor) Mounting Bolts
M8 x 1.25
Torque Specification
12.5 ft-lbs (17 N·m)
Important Notes
Estimated value. Proper torque ensures the sensor is securely attached and provides accurate readings.
2 Heated Oxygen Sensor (HO2S) Mounting Bolts
M8 x 1.25
2
Heated Oxygen Sensor (HO2S) Mounting Bolts
M8 x 1.25
Torque Specification
12.5 ft-lbs (17 N·m)
Important Notes
Estimated value. Proper torque ensures the sensor is securely attached and provides accurate readings.
Fuel Injector
1 Fuel Injector Mounting Bolts
M10 x 1.5
1
Fuel Injector Mounting Bolts
M10 x 1.5
Torque Specification
12.5 ft-lbs (17 N·m)
Important Notes
Estimated value. Proper torque ensures the injector is securely attached and operates correctly.
Exhaust
Torque specifications for Exhaust
Exhaust
Torque specifications for Exhaust
Exhaust Manifold Headers
1 Exhaust Manifold/Headers to Engine Block Bolts
M12 x 1.5
1
Exhaust Manifold/Headers to Engine Block Bolts
M12 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
2 Exhaust Manifold/Headers to Cylinder Head Bolts
M10 x 1.25
2
Exhaust Manifold/Headers to Cylinder Head Bolts
M10 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Exhaust Pipe
1 Exhaust Pipe to Exhaust Manifold/Headers Bolts
M12 x 1.5
1
Exhaust Pipe to Exhaust Manifold/Headers Bolts
M12 x 1.5
Torque Specification
26 ft-lbs (35 N·m)
Catalytic Converter
1 Catalytic Converter to Exhaust Pipe Bolts
M14 x 1.75
1
Catalytic Converter to Exhaust Pipe Bolts
M14 x 1.75
Torque Specification
30 ft-lbs (41 N·m)
Muffler
1 Muffler to Exhaust Pipe Bolts
M14 x 1.75
1
Muffler to Exhaust Pipe Bolts
M14 x 1.75
Torque Specification
30 ft-lbs (41 N·m)
Oxygen Sensor
1 Oxygen Sensor Bolts
M8 x 1.25
1
Oxygen Sensor Bolts
M8 x 1.25
Torque Specification
22.5 ft-lbs (30.5 N·m)
Important Notes
Estimated value, consult vehicle's service manual or manufacturer's recommendations for accurate torque values.
Exhaust System Mounting
1 Exhaust System Mounting Bolts
M16 x 2.0
1
Exhaust System Mounting Bolts
M16 x 2.0
Torque Specification
35 ft-lbs (47.5 N·m)
Important Notes
Estimated value, consult vehicle's service manual or manufacturer's recommendations for accurate torque values.
Heat Shield
1 Heat Shield Bolts
M8 x 1.25
1
Heat Shield Bolts
M8 x 1.25
Torque Specification
12.5 ft-lbs (17 N·m)
Important Notes
Estimated value, consult vehicle's service manual or manufacturer's recommendations for accurate torque values.
Exhaust System Clamp
1 Exhaust System Clamp Bolts
M8 x 1.25
1
Exhaust System Clamp Bolts
M8 x 1.25
Torque Specification
12.5 ft-lbs (17 N·m)
Important Notes
Estimated value, consult vehicle's service manual or manufacturer's recommendations for accurate torque values.
Fuel
Torque specifications for Fuel
Fuel
Torque specifications for Fuel
Fuel Delivery System
1 Fuel Rail Bolts
M6 x 1.0
1
Fuel Rail Bolts
M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure proper alignment of the fuel rail before tightening.
2 Fuel Injector Bolts
M6 x 1.0
2
Fuel Injector Bolts
M6 x 1.0
Torque Specification
7.4 ft-lbs (10 N·m)
Important Notes
Ensure the injector is seated properly before tightening.
3 Fuel Pressure Regulator Mounting Bolts
M6 x 1.0
3
Fuel Pressure Regulator Mounting Bolts
M6 x 1.0
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value based on similar components. Ensure proper sealing of the regulator.
Fuel Storage System
1 Fuel Pump Mounting Bolts
M8 x 1.25
1
Fuel Pump Mounting Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the fuel pump is properly seated before tightening.
2 Fuel Tank Strap Bolts
M10 x 1.5
2
Fuel Tank Strap Bolts
M10 x 1.5
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Ensure the fuel tank is properly positioned before tightening.
3 Fuel Filler Neck Bolts
M8 x 1.25
3
Fuel Filler Neck Bolts
M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure the filler neck is properly aligned with the fuel tank.
Fuel Filtration System
1 Fuel Filter Bolt/Nut
M8 x 1.25
1
Fuel Filter Bolt/Nut
M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure the fuel filter is properly seated before tightening.
Fuel Injector Sealing
1 Fuel Injector O-Ring or Gasket Bolts
M6 x 1.0
1
Fuel Injector O-Ring or Gasket Bolts
M6 x 1.0
Torque Specification
12.5 ft-lbs (17 N·m)
Important Notes
Estimated value based on similar components. Ensure proper sealing of the O-ring or gasket.
Fuel Pump Electrical
1 Fuel Pump Electrical Connector Bolts
M5 x 0.8
1
Fuel Pump Electrical Connector Bolts
M5 x 0.8
Torque Specification
7.5 ft-lbs (10 N·m)
Important Notes
Estimated value based on similar components. Ensure proper electrical connection.
Hvac
Torque specifications for Hvac
Hvac
Torque specifications for Hvac
A/C Compressor
1 A/C Compressor Mounting Bolts
M12 x 1.5
1
A/C Compressor Mounting Bolts
M12 x 1.5
Torque Specification
37 ft-lbs (50 N·m)
Important Notes
Proper torque ensures the compressor operates efficiently and prevents damage to the compressor or surrounding components.
A/C Condenser
1 A/C Condenser Mounting Bolts
M10 x 1.25
1
A/C Condenser Mounting Bolts
M10 x 1.25
Torque Specification
27 ft-lbs (37 N·m)
Important Notes
Estimated value based on industry standards. Consult the manufacturer's specifications or a reliable repair manual for accurate information.
A/C Evaporator
1 A/C Evaporator Mounting Bolts
M8 x 1.25
1
A/C Evaporator Mounting Bolts
M8 x 1.25
Torque Specification
17 ft-lbs (23 N·m)
Important Notes
Estimated value based on industry standards. Consult the manufacturer's specifications or a reliable repair manual for accurate information.
A/C Refrigerant Lines
1 A/C Line Fittings
M10 x 1.25
1
A/C Line Fittings
M10 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Proper torque ensures a leak-free connection and prevents refrigerant leaks.
2 A/C Refrigerant Line Clamp Bolts
M6 x 1.0
2
A/C Refrigerant Line Clamp Bolts
M6 x 1.0
Torque Specification
12 ft-lbs (16 N·m)
Important Notes
Estimated value based on industry standards. Consult the manufacturer's specifications or a reliable repair manual for accurate information.
Suspension
Torque specifications for Suspension
Suspension
Torque specifications for Suspension
Strut And Shock Absorber
1 Strut/Shock Absorber Mounting Bolts
M14 x 1.5
1
Strut/Shock Absorber Mounting Bolts
M14 x 1.5
Torque Specification
85 ft-lbs (115 N·m)
Important Notes
Proper torque is crucial to prevent damage to the strut or shock absorber and maintain ride quality.
Control Arms
1 Control Arm Bolts
M14 x 1.5
1
Control Arm Bolts
M14 x 1.5
Torque Specification
85 ft-lbs (115 N·m)
Important Notes
Proper torque ensures the control arms are securely attached, maintaining proper suspension geometry and preventing damage.
2 Upper Control Arm Bushing Bolts
M10 x 1.25
2
Upper Control Arm Bushing Bolts
M10 x 1.25
Torque Specification
55 ft-lbs (75 N·m)
Important Notes
Estimated value. Proper torque is essential to prevent damage to the bushings or control arm.
3 Lower Control Arm Bolts
M14 x 1.5
3
Lower Control Arm Bolts
M14 x 1.5
Torque Specification
75 ft-lbs (102 N·m)
Important Notes
Estimated value. Proper torque ensures the control arm is securely attached, maintaining proper suspension geometry and preventing damage.
Steering System
1 Ball Joint Nut
M16 x 1.5
1
Ball Joint Nut
M16 x 1.5
Torque Specification
65 ft-lbs (88 N·m)
Important Notes
Proper torque is essential to prevent loose or over-torqued ball joints, which can lead to premature wear or failure.
2 Tie Rod End Nut
M12 x 1.25
2
Tie Rod End Nut
M12 x 1.25
Torque Specification
40 ft-lbs (54 N·m)
Important Notes
Proper torque maintains proper toe alignment and prevents loose or over-torqued tie rod ends.
3 Steering Knuckle Bolts
M14 x 1.5
3
Steering Knuckle Bolts
M14 x 1.5
Torque Specification
85 ft-lbs (115 N·m)
Important Notes
Estimated value. Proper torque is essential to prevent damage to the steering knuckle or surrounding components.
Sway Bar
1 Sway Bar Link Nut
M12 x 1.25
1
Sway Bar Link Nut
M12 x 1.25
Torque Specification
52 ft-lbs (70 N·m)
Important Notes
Proper torque ensures the sway bar link is securely attached, maintaining proper suspension geometry and preventing damage.
Coil Spring
1 Coil Spring Mounting Bolts
M10 x 1.25
1
Coil Spring Mounting Bolts
M10 x 1.25
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value. Proper torque is essential to prevent damage to the coil spring or surrounding components.
Troubleshooting Guide
Common issues, diagnostic steps, and prevention guidelines
Common Issues
Bolt stretching, stripped threads, uneven torque patterns
Common Issues
Bolt stretching, stripped threads, uneven torque patterns
Loose Components
Symptoms:
- Rattling or vibration noises
- Visible movement in components
- Uneven panel gaps
Solutions:
- Clean threads and mounting surfaces
- Replace damaged fasteners
- Apply proper torque in sequence
- Use thread locker if specified
Stripped Fasteners
Symptoms:
- Unable to achieve proper torque
- Fastener spins freely
- Visible thread damage
Solutions:
- Use thread repair kit if appropriate
- Install thread insert (HeliCoil)
- Replace component if threaded hole is damaged
- Upgrade to higher grade fastener if recommended
Overtightened Components
Symptoms:
- Cracked or deformed parts
- Broken fasteners
- Compressed gaskets or seals
Solutions:
- Replace damaged components
- Use new fasteners
- Follow proper torque sequence
- Verify correct torque specifications
Diagnostic Steps
Visual inspection, torque verification, thread assessment
Diagnostic Steps
Visual inspection, torque verification, thread assessment
1
Visual Inspection
Inspect the affected area for any visible signs of damage or wear
- Check for cracks or deformation
- Look for signs of excessive wear
- Verify proper fastener installation
2
Torque Verification
Verify the torque applied to the fasteners
- Check the torque wrench calibration
- Verify the torque specification
- Compare the applied torque to the specification
3
Thread Assessment
Assess the condition of the threads
- Check for signs of thread damage
- Verify the thread type and size
- Check for proper thread engagement
Prevention Guidelines
Best practices, maintenance tips, tool care
Prevention Guidelines
Best practices, maintenance tips, tool care
Best Practices
- Always follow the recommended torque specification
- Use the correct type and size of fasteners
- Verify the torque wrench calibration regularly
Maintenance Tips
- Regularly inspect the affected area for signs of wear or damage
- Replace damaged or worn-out components promptly
- Keep the work area clean and organized
Tool Care
- Regularly clean and maintain the torque wrench
- Store the torque wrench in a dry and secure location
- Verify the torque wrench calibration before each use
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the torque specifications for the cylinder head bolts on a 2014 Ram Promaster?
Q1
What are the torque specifications for the cylinder head bolts on a 2014 Ram Promaster?
The torque specifications for the cylinder head bolts on a 2014 Ram Promaster are: 20 Nm (15 ft-lbs) for the first step, 40 Nm (30 ft-lbs) for the second step, and 90 degrees for the final step.
Q2 What IS the correct torque for the lug nuts on a 2019 Ram Promaster?
Q2
What IS the correct torque for the lug nuts on a 2019 Ram Promaster?
The torque specification for the lug nuts on a 2019 Ram Promaster IS 150 ft-lbs (203 Nm).
Q3 Where can I find the torque specifications for my specific 2016 Ram Promaster?
Q3
Where can I find the torque specifications for my specific 2016 Ram Promaster?
The torque specifications for your specific 2016 Ram Promaster can be found in the vehicle's owner's manual or in the Ram Promaster service manual.
Q4 What type of torque wrench should I use to tighten bolts on my 2017 Ram Promaster?
Q4
What type of torque wrench should I use to tighten bolts on my 2017 Ram Promaster?
You should use a torque wrench that IS calibrated to the correct torque specifications for the bolts you are tightening. A click-type torque wrench IS recommended for most applications.
Q5 How often should I check the torque on the bolts on my 2015 Ram Promaster?
Q5
How often should I check the torque on the bolts on my 2015 Ram Promaster?
You should check the torque on the bolts on your 2015 Ram Promaster according to the maintenance schedule in your vehicle's owner's manual.
Environmental Considerations
Temperature, humidity, and seasonal effects on torque specifications
Temperature Effects
Includes: High Heat, Cold Weather, Thermal Cycling
Temperature Effects
Includes: High Heat, Cold Weather, Thermal Cycling
Temperature can significantly impact torque values and fastener behavior
Cold Weather
Effects:
- Increased material brittleness
- Higher torque required due to thread contraction
- Reduced thread lubricant effectiveness
Recommendations:
- Allow components to warm to room temperature when possible
- Consider using winter-grade thread lubricants
- Check torque values more frequently during winter months
Hot Weather
Effects:
- Thermal expansion of components
- Decreased friction in threads
- Accelerated lubricant breakdown
Recommendations:
- Check torque when components are at normal operating temperature
- Use temperature-resistant thread lockers
- Consider re-torquing after heat cycles
Humidity and Corrosion
Covers: Rust Prevention, Salt Exposure, Moisture Control
Humidity and Corrosion
Covers: Rust Prevention, Salt Exposure, Moisture Control
Moisture and corrosion can affect fastener integrity and torque values
High Humidity
Effects:
- Accelerated corrosion formation
- Reduced friction coefficient
- Potential thread seizing
Prevention:
- Use corrosion-resistant fasteners
- Apply appropriate anti-seize compounds
- Maintain proper protective coatings
Salt Exposure
Effects:
- Rapid corrosion development
- Thread damage
- Seized fasteners
Prevention:
- Regular underbody washing
- Use of sacrificial anodes where appropriate
- Application of protective coatings
Seasonal Maintenance
Spring, Summer, Fall, and Winter maintenance schedules
Seasonal Maintenance
Spring, Summer, Fall, and Winter maintenance schedules
Spring
- Inspect for winter damage
- Clean and protect exposed fasteners
- Check torque on critical components
Summer
- Monitor heat-affected components
- Check expansion-related loosening
- Inspect cooling system mounts
Fall
- Prepare for winter conditions
- Apply corrosion protection
- Verify all fasteners are properly torqued
Winter
- More frequent inspection of critical fasteners
- Check for salt damage
- Monitor suspension component torque
Related Resources
Tools, service procedures, and technical bulletins
Recommended Tools
Digital Torque Wrench (10-100 Nm)
Essential for tightening fasteners to precise torque specifications, preventing damage and ensuring proper assembly. This range IS suitable for many applications on the Promaster.
- Digital display for accurate readings
- Audible alarm when target torque IS reached
- Multiple units (Nm, ft-lb, in-lb)
- Reversible ratcheting mechanism
Service Procedures
Promaster Bolt Torque Specifications
Technical procedure overview specific to Ram Promaster
- Refer to the service manual for specific torque values for each component.
- Always use a torque wrench to ensure proper tightening.
- Tighten bolts in a star pattern to evenly distribute the load.
- Check and re-torque bolts after the initial assembly.
Technical Service Bulletins
Promaster Engine Bolt Torque Specifications
2019-08-15This bulletin provides updated torque specifications for engine bolts on 2014-Present Promaster models.
2014-2019 Promaster 1500 2014-2019 Promaster 2500 2014-2019 Promaster 3500
Resolution: Update torque specifications according to the bulletin.
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General Information
The information provided on this website is for general informational purposes only. While we strive to maintain accuracy in our content, all specifications, procedures, and technical information should be verified against your vehicle's official service manual or with the manufacturer directly.
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We shall not be liable for any direct, indirect, special, or consequential damages arising from the use of information on this website.
Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
- Vehicle specifications and procedures may vary by model year, trim level, and region.
- Always follow the manufacturer's recommended procedures and safety precautions.
- Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
- If you're unsure about any procedure, consult a qualified professional mechanic.
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