RAM Ram 5500 2016-present Fuel System Bolt Torque Specifications & Line Fittings
RAM Ram 5500 2016-present

RAM Ram 5500 2016-present Fuel System Bolt Torque Specifications

Detailed fuel bolt torque specifications for the 2016-Present Ram 5500, including recommended torque values and tightening procedures.

Updated

Important Information

Safety guidelines and reference information for proper torque application

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

Star Pattern torque pattern diagram showing proper bolt tightening sequence
Cross Pattern

Used for gaskets and cover plates

Cross Pattern torque pattern diagram showing proper bolt tightening sequence
Sequential Pattern

Used for head bolts and other critical components

Sequential Pattern torque pattern diagram showing proper bolt tightening sequence

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

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

Search Specifications

Search by component name, bolt size, or description

Torque Calculator

Convert between different torque units

Fuel rail and injector system

This subsystem includes components that deliver fuel to the engine, such as the fuel rail, fuel injectors, and fuel injector rail.

1

Fuel Rail Bolts

M10 x 1.5
Torque Value
9.2 ft-lbs (12 N·m)
2

Fuel Injector Bolts

M10 x 1.5
Torque Value
9.2 ft-lbs (12 N·m)
3

Fuel Injector Rail Bolts

M10 x 1.5
Torque Value
9.2 ft-lbs (12 N·m)
4

Fuel Injector Hold-Down Clamp Bolts

M8 x 1.25
Torque Value
7.4 ft-lbs (10 N·m)
Important Notes
Estimated value. May vary depending on manufacturer's recommendations.

Fuel pump and tank system

This subsystem includes components that store and deliver fuel to the engine, such as the fuel pump, fuel tank, and fuel tank straps.

1

Fuel Pump Mounting Bolts

M12 x 1.75
Torque Value
9.2 ft-lbs (12 N·m)
2

Fuel Tank Strap Bolts

M14 x 2.0
Torque Value
25 ft-lbs (34 N·m)
3

Fuel Filler Neck Bolts

M12 x 1.75
Torque Value
25 ft-lbs (34 N·m)

Fuel filter and pressure regulator system

This subsystem includes components that filter and regulate fuel pressure, such as the fuel filter and fuel pressure regulator.

1

Fuel Filter Bolt/Nut

M20 x 2.5
Torque Value
22 ft-lbs (30 N·m)
2

Fuel Pressure Regulator Mounting Bolts

M10 x 1.5
Torque Value
15 ft-lbs (20 N·m)
Important Notes
Estimated value. May vary depending on manufacturer's recommendations.

Fuel line system

This subsystem includes components that connect the fuel system, such as fuel line fittings.

1

Fuel Line Fittings

M12 x 1.75
Torque Value
10 ft-lbs (14 N·m)
Important Notes
Estimated value. May vary depending on manufacturer's recommendations.

Troubleshooting Guide

Common issues, diagnostic steps, and prevention guidelines

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

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

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 is the recommended torque specification for the fuel injector bolts on a 2016-Present Ram 5500?

The recommended torque specification for the fuel injector bolts on a 2016-Present Ram 5500 is typically 120 in-lbs (10 Nm). Always refer to the manufacturer's service manual for the exact specifications, as they may vary depending on the engine model.

Q2

How often should I check the torque on fuel system components?

It is recommended to check the torque on fuel system components, such as fuel injector bolts and fuel line fittings, during routine maintenance intervals or whenever you perform work on the fuel system. Loose bolts can lead to fuel leaks, which are both dangerous and inefficient.

Q3

Can over-tightening fuel system bolts cause damage?

Yes, over-tightening fuel system bolts can strip threads, damage gaskets, or crack components, leading to fuel leaks or system failure. Always use a calibrated torque wrench and follow the manufacturer's specifications to avoid over-tightening.

Environmental Considerations

Temperature, humidity, and seasonal effects on torque specifications

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

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

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

Torque Wrench

A precision torque wrench for applying accurate torque values

  • 0-150 ft-lb range
  • 1/2" drive
Learn more

Socket Set

A set of sockets for accessing fuel system bolts

  • 1/2" drive
  • Metric and SAE sizes
Learn more

Fuel System Pressure Test Kit

A kit for testing fuel system pressure

  • Includes pressure gauge and adapters
  • For use with gasoline and diesel engines
Learn more
Service Procedures

Fuel Bolt Torque Specification

Procedure for applying correct torque values to fuel system bolts

  • Locate the fuel system bolts
  • Apply the recommended torque value using a torque wrench
  • Verify the torque value using a torque wrench
View full procedure

Fuel System Leak Test

Procedure for testing the fuel system for leaks

  • Pressurize the fuel system using a fuel system pressure test kit
  • Inspect the fuel system for signs of leaks
  • Repair any leaks found
View full procedure
Technical Service Bulletins

Fuel Bolt Torque Specification Update

2018-02-15

Update to the recommended torque values for fuel system bolts

2016-2018 Ram 5500

Resolution: Apply the updated torque values to the fuel system bolts

Fuel System Pressure Test Kit Update

2020-05-01

Update to the fuel system pressure test kit

2016-Present Ram 5500

Resolution: Use the updated fuel system pressure test kit for testing fuel system pressure

About the Author

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Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

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