Fleece Performance · New
Fleece Performance 01-07 GM Duramax/11-16 GM 2500/3500 Duramax Oil Cooler Adapter Kit
MPN FPE-DMAX-OCADPT · Store SKU fpeFPE-DMAX-OCADPT
Supplier stock checked 11/7/2026, 5:31:40 AM UTC. Adding a part does not reserve it.
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Product details
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 of the leak prone gasket to provide a superior seal. Slotted mounting holes on one end allow for easier installation. GM Duramax Oil Cooler Adapter Kit
Manufacturer fitment & guides
Check FPE-DMAX-OCADPT against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y