When To Change Your Ram 3500'S Fuel Filter?

The fuel filter in a Ram 3500 should be replaced every 15,000 miles or 12 months, according to Cummins. However, some people choose to change their fuel filters more frequently, such as every 5,000 to 10,000 miles, or with every oil change. The cost of a fuel filter service can be high, but it is possible to do it yourself at home.

Fuel filter replacement cost

The cost of replacing a fuel filter on a Dodge Ram 3500 varies depending on the year of the vehicle, the location of the service, and the labour and parts required.

According to RepairPal, the average cost to replace a fuel filter on a Dodge Ram 3500 is between $119 and $135, with labour costs estimated between $56 and $71, and parts priced between $63 and $65. However, YourMechanic estimates the average cost to be $164, with $24 for parts and $140 for labour. For a Dodge Ram 3500 Van, RepairPal estimates the cost to be between $355 and $403, with labour costs between $185 and $233, and parts priced around $170.

Fuel Filter Replacement Service

The fuel filter replacement service typically involves raising the vehicle, depressurising the fuel system, removing the old filter, and installing a new filter. Some vehicles may require special tools to release the fuel lines. It is important to catch any fuel that spills or falls during the service and to ensure proper sealing to prevent leaks.

Fuel Filter Replacement Interval

Fuel filters are typically replaced as part of scheduled maintenance, with replacement intervals varying depending on the vehicle and fuel quality. For the Dodge Ram 3500, RepairPal recommends replacement every 40,000 to 80,000 miles, while some owners report replacing the filter every 7,500 to 15,000 miles or with every oil change.

DIY Fuel Filter Replacement

It is possible to replace the fuel filter on a Dodge Ram 3500 at home with intermediate DIY skills. The necessary tools include a socket set, extensions, a swivel attachment, and a drain bucket or tube. The process can take around 40 minutes to an hour for those with some experience, but it is important to exercise caution when working with the fuel system to prevent leaks and fires.

How to replace the fuel filter

To replace the fuel filter on a 6.7L Cummins turbodiesel I-6 engine, you will need a 28mm or 29mm socket, a ratchet with a swivel attachment, a 10-inch extension, and some tubing. You may also want to use some engine oil to lubricate the new filter housing lid o-ring.

Before you begin, consult your vehicle's manual to determine the location of the fuel filter. For 2013 and newer models, there will be two fuel filters: one mounted on the chassis near the front of the fuel tank and over a portion of the driveshaft, and another mounted on the driver's side of the engine block. Older models (2007-2012) will only have the engine-mounted filter.

Chassis-Mounted Fuel Filter Replacement

• Attach a section of 5/16-inch fuel hose to the drain valve nipple at the bottom of the fuel filter housing cap. Place the other end of the hose in a suitable drain container.
• Rotate the drain valve counterclockwise until fuel begins to drain.
• Once the fuel filter housing has drained completely, remove the cap with a 28mm socket. The fuel filter will be attached to the cap.
• Discard the old fuel filter and inspect the inside of the cap for any metallic debris.
• Remove and discard the large o-ring seal from the fuel filter housing cap.
• Lubricate the replacement filter housing cap o-ring with clean engine oil.
• Install the lubricated o-ring onto the new fuel filter and secure it into the cap.
• Reinstall the fuel filter/cap assembly into the housing. Secure the cap hand-tight, then torque to 22.5 ft-lbs (30.5 N-m) with a 28mm socket. Do not overtighten.
• Verify that the drain valve is closed.
• Cycle the engine to the "run" position (without starting) 5 to 10 times to prime the chassis-mounted filter housing.

Engine-Mounted Fuel Filter Replacement

• Locate the fuel filter housing drain hose protruding from the bottom of the fuel filter housing.
• Use a fitting to connect a section of tubing to the drain hose. Do not fully insert the fitting into the drain hose, as it may become permanent.
• Place the other end of the tubing into an appropriate drain container.
• Rotate the yellow drain valve at the base of the fuel filter housing counterclockwise and allow the housing to drain completely.
• Lubricate the new filter housing lid o-ring and the outer fuel filter seal with clean engine oil.
• Remove the fuel filter housing cap with a 28mm socket.
• Remove the fuel filter from the housing and discard it.
• Install the new fuel filter, then remove and replace the old fuel filter housing lid o-ring.
• Close the yellow drain valve completely.
• Reinstall the fuel filter housing lid and torque to 22.5 ft-lbs (30.5 N-m).
• Cycle the ignition to the "RUN" position (without starting) 10 to 12 times to prime the fuel system.
• Start the engine and check for leaks at the fuel filter housing lids and drain valves.

How often to change the fuel filter

Changing the fuel filter on your RAM 3500 is a vital part of maintaining the health of your vehicle's fuel system. The recommended service interval for replacing the fuel filter is approximately every 15,000 miles or 12 months, whichever comes first. This interval is specified by the manufacturer, Cummins, and is intended to ensure optimal performance and protection for your engine.

However, it's important to note that the actual interval between fuel filter changes may vary depending on several factors. These factors include the quality of fuel used, driving conditions, and even individual driving habits. For example, if you frequently drive in severe conditions, such as short trips or cold weather, you may need to change your fuel filter more often. On the other hand, if you primarily use your vehicle for long-distance travel, you may be able to extend the interval between changes.

Some RAM 3500 owners choose to change their fuel filters at different intervals. Some people prefer to change their fuel filter every 5,000 to 7,500 miles, while others opt for every other oil change, which is typically around 10,000 miles. Ultimately, the decision on when to change the fuel filter depends on various factors, including personal preference, driving conditions, and the advice of trusted mechanics.

It is also worth mentioning that the fuel filter is not the only component that requires regular maintenance. Other filters, such as the oil and air filters, should also be replaced at recommended intervals. Additionally, it is recommended to keep a spare fuel filter in your vehicle, as you may encounter a bad batch of fuel that could prematurely clog your filter.

Tools required to change the fuel filter

The tools required to change the fuel filter on a Ram 3500 vary depending on the model year and specific vehicle configuration. However, some common tools that may be needed include:

• A socket wrench: Sizes such as 28mm or 29mm are mentioned by Ram 3500 owners.
• Extensions for the socket wrench: A long extension, at least 12 inches, is recommended for reaching the fuel filter.
• A swivel attachment for the socket wrench.
• A ratchet.
• A strap wrench.
• A drain pan or bucket to catch any fuel that may leak out during the filter replacement.
• Pliers: For removing retaining clips from fuel lines.
• A new fuel filter that is the correct size and type for your specific Ram 3500 model.
• A garden hose and water source: To wash away any fuel that may leak out during the replacement process.
• Safety glasses: To protect your eyes from any fuel spray.
• Vehicle ramps: To access the fuel filter if it is mounted underneath the vehicle.

It is important to consult an auto repair manual or seek advice from a qualified mechanic to ensure you have the correct tools and procedures for your specific vehicle.

Fuel filter part numbers

• 2013-2018 Dodge Ram 3500 6.7L Cummins Diesel: 68197867AB and 68157291AA
• 2019-2024 Ram 3500 6.7L Cummins Diesel: 68157291AA and 68436631AA
• 2010-2024 Dodge Ram 3500 6.7L Cummins Diesel: 68157291AA
• 2019-2024 Ram 2500/3500/4500/5500 Cummins: 68436631AA
• 2010-2012 Dodge Ram 3500 6.7L Cummins Diesel: 68065608AB
• 2007.5-2009 Dodge Ram 3500 6.7L Cummins Diesel: 68061633AA

It is important to verify the correct part number for your specific vehicle before purchasing or installing a fuel filter. This information can typically be found in the vehicle's owner's manual or by contacting the manufacturer. Additionally, it is recommended to use genuine OEM (Original Equipment Manufacturer) parts to ensure compatibility and optimal performance.

Frequently asked questions