When fuel system failure hits, it hits hard. This complete contamination kit brings your 2011–2016 Duramax LML back from the dead — and upgrades it with a CP3 conversion that ditches the weak CP4 pump for good. Built to OEM specs with every major component replaced, this is the permanent fix for high-pressure fuel system contamination.
Includes:
Genuine Bosch CP3 conversion pump
New fuel rails, injectors, lines, and seals
OEM-grade fuel filter and return system hardware
All necessary fittings, gaskets, and hardware for a full rebuild
Fitment:
2011–2016 GM 6.6L Duramax LML (Chevy Silverado & GMC Sierra)