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LB7/LLY Duramax Warranty PackageThis package is designed as a preventive maintenance solution to address known external failure points, safeguarding your new engine and ensuring your warranty remains valid. We require these components be replaced in order to receive your engine warranty. Reusing old parts may lead to premature failure of your new engine. Overheating Prevention: The New Water Pump and New Oil Cooler eliminate thermal stress caused by worn out components, which is

Inspected for cracks

Quicker spool-up

also known as the gear housing

It is a critical replacement part due to a notorious weakness in the original design

Secure warranty coverage for your Duramax short block or long block engine with the Choate Engineering Performance Warranty Package

9L's factory oil cooler core (which sits between the block and this housing)

or engine damage

Please note this warranty package is required in order to activate your warranty for your Model C engine

Travel lighter and keep your supplies colder

Eliminates Distortion: Unlike factory main caps

width: 60px

4 Aluminum Plugs: Precision-machined billet aluminum plugs for superior strength and corrosion resistance (one rear plug and 3 side plugs)