GM GENUINE 84186466
Fits Auxiliary Heater Outlet; NO CLAMPS; Heavy Duty Heater (C42),A/C; Manual Controls (C60),AUX HVAC PROVISIONS(ENC); Exc. Auxiliary Heater, Rear (C36),Rear Auxiliary A/C (C69)or Auxiliary Heater Outlet; NO CLAMPS; Exc. AUX HVAC PROVISIONS(ENC) Heater, Rear (C36),Rear Auxiliary A/C (C69)or Auxiliary Heater Outlet; NO CLAMPS; Exc. Rear Auxiliary A/C (C69),AUX HVAC PROVISIONS(ENC) Heater, Rear (C36),Heavy Duty Heater (C42),A/C; Manual Controls (C60)
GM GENUINE 84369034
Fits Heater Inlet; Heavy Duty Heater (C42),A/C; Manual Controls (C60),AUX HVAC PROVISIONS(ENC); Exc. Auxiliary Heater, Rear (C36),Rear Auxiliary A/C (C69)or Auxiliary; Heater Inlet; Exc. AUX HVAC PROVISIONS(ENC) Heater, Rear (C36),Rear Auxiliary A/C (C69)or Auxiliary; Heater Inlet; Exc. Rear Auxiliary A/C (C69),AUX HVAC PROVISIONS(ENC) Heater, Rear (C36),Heavy Duty Heater (C42),A/C; Manual Controls (C60)