Description
This is a genuine GM OEM Duramax Diesel L5P Engine Cooler Assembly.
The Duramax engine oil cooler is not normally a component that goes bad, however, it should be replaced after any catastrophic engine failure or during any performance engine builds.
the factory oil cooler has a stack plate design which makes cleaning any debris out nearly impossible. This is the reason we always recommend replacing the oil cooler. A defective engine oil cooler is also a major source for coolant/oil cross contamination. Check your coolant degas bottle for a layer of oil. If any appears, it is often defective oil cooler.
This coolers massive 30% increase in cooling capacity makes it a great upgrade for 2001-2016 trucks. Some changes will be required to install on earlier trucks.
Sold SeparatelyÂ
- Trimming of Drivers Side Exhaust Manifold Heat shield and Heat Shield Mounting Boss
- Replace Original Elbow with Coolant Elbow 12675428 and Gaskets 12676826 / 97192667
- Cooler Mounting require (3) GM 11515760 40MM Bolts and (2) GM 11588694 120MM Bolts
- The 2020 Cooler requires Oil Filter #Â PF26
For a upgrade that requires less modification, CEP uses the 2017-2019 Cooler Part Number 1268318. The 17-19 cooler fits with only minor hardware changes and still cools substantially better than the earlier coolers.
Fitment :
2020-2021 L5P Duramax 6.6 2500/3500 Silverado/Sierra GMC / Chevrolet Duramax Equipped Vehicles.
Note : Gaskets NOT Included
Supersession Note :
12706188 Supersedes 12701592
This item comes with a manufacturer’s warranty.
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