2011+ Duramax LML Rear Engine Cover Coolant Return Plug Whether you're putting on an aftermarket turbo or deleting the EGR system on your LML, this coolant return plug will help you put the finishing touches on the job. The plug is made from high quality 6061 aluminum, anodized black, and laser etched with the Fleece Performace "F". It comes complete with a high temperature silicone o-ring to ensure you won't have any leaks.

Prop 65WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov