Description
68157291AA Fuel Filter + Silver Canister Housing Cap — Ram 6.7L Cummins
Do not let a $25 plastic cap cost you thousands in fuel system repairs. The iFJF 68157291AA Fuel Filter + Silver Aluminum Housing Cap Combo permanently solves the notorious Ram plastic cap problem while providing OEM-grade 3-micron fuel filtration for your 2011-2020 Ram 2500/3500 6.7L Cummins.
The silver anodized billet aluminum cap (replaces 68065612AA) is CNC-machined for perfect fit and features a brilliant silver finish that resists corrosion through years of filter changes.
Key Features
-
Complete Kit: 68157291AA filter + 68065612AA silver aluminum cap + new O-ring—everything in one box
-
Billet Aluminum Cap — Silver: 6061-T6 aircraft-grade aluminum with clear anodized finish for maximum corrosion resistance
-
3-Micron Filtration: Captures 99.9% of particles 3 microns and larger—critical CP3/CP4 protection
-
Water-Separating Media: Hydrophobic filter element removes water before it damages injectors
-
Precision Hex Drive: Identical hex size to factory cap (1-1/4 inch or 32mm) for existing tool compatibility
Compatibility
| Vehicle |
Engine |
Years |
| Ram 2500 |
6.7L Cummins Turbo Diesel |
2011-2020 |
| Ram 3500 |
6.7L Cummins Turbo Diesel |
2011-2020 |
| Ram 4500/5500 |
6.7L Cummins Turbo Diesel |
2011-2020 |
Specifications
| Specification |
Detail |
| Part Number |
FJ-91AA-CAP01-RD |
| Filter |
68157291AA — 3 Micron, Water Separating |
| Cap |
68065612AA Replacement — Billet Aluminum, Silver |
| Cap Material |
6061-T6 Aluminum, Clear Anodized |
Installation Tips
- Place drain pan under chassis-mounted filter housing (driver-side frame rail)
- Open water drain valve (yellow lever) to drain housing
- Use 1-1/4 inch socket or 32mm wrench to unscrew old plastic cap
- Remove old filter element and discard
- Clean housing interior with lint-free cloth
- Insert new 68157291AA filter element
- Lubricate O-ring with clean diesel fuel
- Install new aluminum cap—hand-tighten then 1/4 turn (18-22 ft-lbs)
- Cycle key to Run (without starting) 3 times to prime
- Start engine and check for leaks
Frequently Asked Questions
Q: Difference between silver and black cap?
A: Mechanically identical. Same billet 6061-T6 aluminum, same OEM-spec dimensions. Difference is cosmetic: silver (clear anodized) vs black (hard anodized).
Q: Will this fit my 2013 Ram 3500 dually?
A: Yes. All 2011-2020 Ram 2500/3500 with 6.7L Cummins use the same front fuel filter housing, including dually configurations.
Q: Signs my old cap is bad?
A: Fuel weeping around cap threads, stripped hex, visible cracks at O-ring groove, or air in fuel system causing extended cranking.
Q: Buy cap without filter?
A: This listing includes both. For cap only, search 68065612AA on our store.
Q: Does silver anodizing hold up to diesel?
A: Yes. MIL-A-8625 Type II anodized finish is chemically resistant to diesel, DEF, and engine bay chemicals.
