The Gates coolant tube replaces the coolant line from the oil cooler to the heater on 2002–2011 Freightliner Columbia 14.0L 6‑cylinder diesel models. It restores the intended coolant routing between the oil cooler and heater circuit to maintain proper engine thermal management. This service tube is specified for the indicated Freightliner applications and mirrors factory coolant routing.

Gates 02-11 Freightliner Columbia 6-Cyl. 14.0L Diesel Oil Cooler To Heater Coolant Tubes