The stock Duramax oil cooler adapter relies on a metal gasket that can leak as the cooler flexes. Fleece's adapter uses an integral square-cut seal ring on the cooler face instead, and slotted holes on one end make lining it up easier.
It replaces GM 97941206 and 12684475.
Owners of 2001-2007 and 2011-2019 Silverado/Sierra Duramax trucks with a leaking cooler adapter.
| Engines | 2001-2007 and 2011-2019 6.6L Duramax |
|---|---|
| Seal | Integral square-cut ring |
| Replaces | GM 97941206, 12684475 |
| Warranty | 1-year limited parts (Fleece) |
| Shipping weight | 5 lb |
Professional install available at Powertech Diesel, Idaho Falls — call 208-542-7793.
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