Fleece Performance Oil Cooler Adapter 01-07/11-19 GM 6.6L Duramax RL-66-2515 Kit includes the majority of

Kit includes the majority of gaskets for a complete engine overhaul

This Serrated Hitch Step is rated for 500 LB capacity and designed for zero slip

all backed by a lifetime guarantee

As an added bonus

0L Cummins Low-Temperature Thermostat

Fleece Performance Oil Cooler Adapter 01-07/11-19 GM 6.6L Duramax RL-66-2515 Kit includes the majority ofHow does superior sealing with easy installation sound when it comes time to replace your Duramaxs oil cooler adapter? Good? Well, lets first define the problem youre having Problem: The original equipment oil cooler adapter relies on a metal gasket on the oil cooler that over time is prone to leaking as the cooler flexes. Fix: The Fleece Performance oil cooler adapter utilizes an integral square cut seal ring on the oil cooler mating surface in place