2011-2016 LML DURAMAX COOLANT BYPASS KIT WITH PLUG

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2011-2016 LML Duramax Coolant Bypass Kit. Preformed rubber hose routes coolant from thermostat housing to firewall/heater core connection with pre-installed GM quick connect fittin g. Billet aluminum anodized plug installs into rear engine cover coolant port, allowing removal of the OEM coolant hard pipe. Show more