Parts Geek - For 1988-1993 GMC K3500 Heater Hose Gates 81949XHDD. 1988-1990, 1992-1993 GMC K3500 7.4L V8 GAS. 1991 GMC K3500 7.4L V8 GAS. Notes: Molded Heater Hose. Has all the quality features of Gates molded coolant hose and similar to OEM specifications.
