FUEL SYSTEM
Premium Fuel System Parts for 2011–2016 6.6L Duramax LML
Upgrade, maintain, or restore your fuel system with confidence using this selection of fuel components for the 2011–2016 6.6L Duramax LML. This page features everything from OEM replacement parts like fuel injectors, Bosch CP4 high-pressure pumps, fuel rails, and return line assemblies to proven upgrade solutions such as CP3 conversion kits, FASS fuel air separation systems, and electric lift pumps, all designed to fit your LML/LGH Duramax truck. Whether you’re addressing common fuel system issues, preventing CP4 failure, or improving overall performance and reliability for towing or daily driving, these parts can help deliver consistent fuel pressure, better filtration, and longer engine life. With trusted brands like Bosch, FASS, Alliant Power, and Fleece Performance, you’ll find high-quality fuel system components engineered to keep your Duramax running stronger, smoother, and more dependably in any condition.
