MAHLE Fuel Filter 21-23 GM 6.6L Duramax L5P NFB-HPF1777QC-SS Added strength to the transmission

Added strength to the transmission case

A waterproof aluminum housing and polycarbonate lens have an epoxy resin potting to protect internal components

or internal engine friction

This system replaces the factory radius arms with a heavy-duty 4-link setup

Exhaust kit 19422 has been tuned to produce superior interior and exterior sound levels for an enhanced driving experience when installed on your vehicle

MAHLE Fuel Filter 21-23 GM 6.6L Duramax L5P NFB-HPF1777QC-SS Added strength to the transmissionIs your 6. 7L Cummins starting to lose efficiency, run rough, or just due for routine maintenance? This MAHLE Fuel Filter is one of those simple upgrades that plays a massive role in keeping your truck running the way it should. Designed as an OEM replacement, this filter protects your system by removing contaminants before they ever reach critical components, helping maintain consistent fuel delivery, smoother operation, and long term reliability.