DP Customs L5P Duramax Billet -10 AN Side Thermostat Adapter Fitting requires-mpvi Designed for high-output diesel engines

Designed for high-output diesel engines

5 rear axles checks all the boxes

This allows the engine to keep its designed injection timing which allows a more complete burn of the fuel entering the cylinder

This idler can be used with lifted

The air streams recombine to produce a vacuum

DP Customs L5P Duramax Billet -10 AN Side Thermostat Adapter Fitting requires-mpvi Designed for high-output diesel enginesThe DP Customs L5P Duramax Billet 10 AN Side Thermostat Adapter Fitting allows competition L5P Duramax trucks the ability to utilize AN lines directly from the thermostat housing to the heater core connection. This AN connection effectively removes any leak points that rubber heater hose and barb fittings may have and is the most durable and sought after connection style in the automotive performance world. Complete AN Line Sets Coming Soon! Features