Position: Heater Inlet. Notes:HEAVY DUTY HEATER (C42), AUX HVAC PROVISIONS (ENC); Except AUX HEATER, REAR (C36). Notes: HVAC Heater Hose -- New. Notes:AUX HEATER, REAR (C36), HEAVY DUTY HEATER (C42). GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle.
