Cummins Fuel Filter Change (2013 – 2018 6.7L)
Perform the Ram Cummins fuel filter change to keep your diesel running at top performance. A plugged fuel filter will cause many issues. It is not recommended and not needed to prefill the fuel filters, doing so will increase the chances of contaminants entering the fuel system. This article is specifically for the 6.7L Cummins found in Ram 2500, 3500, 4500, & 5500 trucks. To perform an oil change on this truck, follow this guide. For a 2019+ Cummins equipped Ram fuel filter change, follow this alternate guide.
Tools Needed:
- 1 1/8” socket, ratchet, and 12+” extensions
- Oil filter wrench
- Water in fuel sensor wrench
- Phillips head screwdriver
- Drain pan
Parts needed:
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6.7L Ram Cummins Fuel Filter Change Procedure:
- Verify ignition is in the OFF position
- Locate the fuel filter housing under the hood on the drivers side
- Locate the yellow fuel filter drain
- Put the drain pan under the fuel filter housing
- Turn the drain counter clock wise to drain (use the Phillips head screw driver if it is too tight to do by hand)
- Remove the fuel filter cap using the 1 1/8” socket, ratchets, and extensions
- Remove and replace the cartridge style fuel filter and fuel filter cap O ring
- Lubricate the fuel filter cap O ring and reinstall cap to housing
- Tighten fuel filter housing drain
- Locate the spin on style fuel filter between the frame rails in front of the rear differential
- Move the drain pan under its drain and open the water in fuel drain
- Unplug the water in fuel sensor connector
- Once the filter is done draining, remove the water in fuel sensor drain using the water in fuel sensor wrench (an adjustable wrench or channel locks could be used)
- Using the oil filter wrench, remove the fuel filter
- Install new spin on fuel filter
- Reinstall water in fuel drain on the new filter with a new O Ring using the water in fuel sensor wrench
- Cycle the key to the ON position and leave it there until you hear the fuel pump stop priming
- Turn the key to the OFF position, and the back on – repeat this cycle 3 times
