09/01/2026
NEW for the 2025–2026 Ram 6.7L Cummins.
The factory oil filter cap is cast aluminum. The factory fuel filter caps are plastic. We thought they could be better. So we built them from solid billet aluminum.
Introducing HSM's new Billet Oil Filter Cap and Billet Fuel Filter Cap Set — CNC-machined, direct-fit replacements built for greater strength, durability and serviceability.
And with the Fuel Filter Cap Set, we went a step further. Each fuel cap features an integrated bleed valve to help release trapped air from the fuel system, which can help reduce the extended cranking associated with trapped air.
Available in raw aluminum, red or HSM green and backed by our Lifetime Warranty.
Built better than factory.