2011-2016 LML Duramax Y-Bridge Kit with One Piece Intake Illusion Purple Two Stage Powder Coating WCFab

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Coolant Bypass Kit, for 2011-2016 Duramax LML

  • Sold As Kit


  • Pre-formed Coolant Hose with GM Quick Connect Fitting
  • Billet Aluminum Coolant Plug with O-Ring
  • NOTE: This hose assembly and billet plug is a standard item included in all WCFab Y-bridge Kits, Bundle Kits, Single, and Twin Turbo Kits.

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