This Gates HVAC Heater Hose fits your 1999 GMC C3500 5.7L 7.4L V8 (Aux Heater Pipe-4 To Aux Heater) and is perfect for a tune up or performance upgrade. .
Gates Aux Heater Pipe-1 To Aux Heater HVAC Heater Hose for 1993 GMC K1500 ta
Gates Aux Heater Pipe-2 To Aux Heater HVAC Heater Hose for 1997-1999 tl
Gates Aux Heater Pipe-1 To Aux Heater HVAC Heater Hose for 1993 Chevrolet uf
Gates Aux Heater Pipe-2 To Aux Heater HVAC Heater Hose for 1996 GMC C3500 oj
Gates Aux Heater Pipe-4 To Aux Heater HVAC Heater Hose for 1999 Chevrolet qs
Gates Aux Heater Pipe-3 To Aux Heater HVAC Heater Hose for 1997-1998 us
