UnderDog Diesel 2011-2016 GM 6.6L LML Duramax Coolant Bypass Kit

Replace your leaking cheap 'Chinese' Kit hoses with our ultimate bypass solution. 

The blue/black hoses in these cheap kits blow the brass crimps apart leaving you stranded.

UnderDog Diesel 2011-2016 LML Duramax Coolant Bypass Kit

Preformed rubber hose routes coolant from thermostat housing to firewall/heater core connection with a billet quick connect fitting.

Billet aluminum anodized plug installs into rear engine cover coolant port, allowing removal of the OEM coolant hard pipe.

Coolant Cap for Metal Hard Line