Description
Premium Oil Filter for Dodge Ram Cummins Diesel 5.9L & 6.7L
The iFJF FJ-85AA oil filter is a premium OEM-spec replacement for Dodge Ram 2500, 3500, 4500, and 5500 trucks equipped with the legendary 5.9L and 6.7L Cummins turbo diesel engines. Covering an incredible 33-year span from 1989 through 2022, this single filter design has protected millions of Cummins engines. Our filter is manufactured to meet or exceed OEM filtration specifications, ensuring your hard-working diesel engine gets the clean oil it needs for long service life. Whether your Ram is a daily driver, tow rig, or heavy-duty work truck, proper oil filtration is the single most important factor in Cummins engine longevity.
Why Oil Filtration Matters for Cummins Engines
Cummins diesel engines are known for their million-mile capability, but that legendary durability depends on proper maintenance. The 5.9L and 6.7L Cummins engines hold approximately 12 quarts (3 gallons) of oil, and that entire oil volume circulates through the filter multiple times per minute at operating temperature. A high-quality filter must trap carbon particles, metal wear debris, and soot contamination while maintaining full oil flow to critical engine components including the turbocharger bearings, piston cooling nozzles, and hydraulic lifters. The iFJF FJ-85AA uses high-efficiency filter media designed specifically for the high soot-loading characteristics of diesel engine oil.
Vehicle Compatibility
| Make |
Model |
Years |
Engine |
| Dodge / Ram |
2500 |
1989-2022 |
5.9L I6 Cummins / 6.7L I6 Cummins |
| Dodge / Ram |
3500 |
1989-2022 |
5.9L I6 Cummins / 6.7L I6 Cummins |
| Dodge / Ram |
4500 |
2007-2022 |
6.7L I6 Cummins |
| Dodge / Ram |
5500 |
2007-2022 |
6.7L I6 Cummins |
Technical Specifications
| Specification |
Detail |
| Filter Type |
Full-Flow Cartridge / Spin-On |
| Filter Media |
High-Efficiency Cellulose/Synthetic Blend |
| Filtration Efficiency |
>98% at 25 Microns (Nominal) |
| Bypass Valve Setting |
8-11 PSI Differential |
| Anti-Drainback Valve |
Silicone (Prevents Dry Starts) |
| Thread Size |
M27 x 2.0 Metric |
| Gasket Type |
Square-Cut Nitrile O-Ring |
| OEM Cross Reference |
5083285AA, 5016547AA, 5093092AA |
| SKU |
FJ-85AA |
Frequently Asked Questions
Q: What years and models does this oil filter fit?
A: This oil filter fits 1989-2007 Dodge Ram 2500, 3500, 4500, and 5500 with the 5.9L Cummins diesel engine, and 2007-2022 Ram 2500-5500 with the 6.7L Cummins diesel. It replaces OEM part numbers 5083285AA, 5016547AA, and 5093092AA.
Q: What is the difference between the 5.9L and 6.7L Cummins filters?
A: The 5.9L and 6.7L Cummins engines use the same oil filter specification. This filter is designed to work with both engine families, making it a universal replacement for all 1989-2022 Dodge/Ram Cummins diesel trucks.
Q: How often should I change this oil filter?
A: Cummins recommends oil and filter changes every 7,500 miles for normal service or 15,000 miles for highway service on newer 6.7L engines. For the 5.9L Cummins (1989-2007), 5,000-7,500 miles is typical. Always follow your owner's manual and consider more frequent changes for heavy towing, off-road, or severe duty use.
Q: Does this filter meet Cummins filtration specifications?
A: Yes, the iFJF FJ-85AA is manufactured to meet or exceed Cummins filtration specifications for particulate removal efficiency, dirt-holding capacity, and oil flow rates. It features high-efficiency filter media rated for diesel engine oil filtration.
Q: What oil should I use with this filter?
A: For 5.9L Cummins (1989-2007), use SAE 15W-40 diesel-rated engine oil meeting API CI-4 or CJ-4. For 6.7L Cummins (2007-2022), use SAE 5W-40 or 15W-40 synthetic diesel oil meeting API CJ-4 or CK-4. Oil capacity is approximately 12 quarts (3 gallons) with filter change on the 6.7L.
Q: Is the gasket pre-lubricated?
A: The filter comes with a pre-installed sealing gasket. We recommend applying a thin film of clean engine oil to the gasket before installation to ensure a proper seal and easy removal at the next oil change. Always tighten to manufacturer specification - typically 3/4 to 1 full turn after gasket contact.
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