GMC K3500 HVAC Temperature Controls
This page brings together HVAC temperature controls for the GMC K3500, covering model years 1979–2000. The range includes heater control valves and heater blend door actuators — two of the core components in a truck's cabin heating and airflow system. Choose your model year above and this page keeps only the hvac temperature controls that fit your GMC K3500. Each listing is matched to our vehicle fitment data before it appears here.
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What's here for your GMC K3500
- HVAC Heater Control Valves — components that regulate coolant flow through the heater core
- HVAC Heater Blend Door Actuators — motor-driven units that manage the position of the temperature blend door
The widest selection here comes from Dorman, ACDelco, GPD, and Four Seasons, each offering parts across the 1979–2000 model year span. Other categories GMC K3500 owners shop for: GMC K3500 Exhaust and Tail Pipes, GMC K3500 Brake Hardware and GMC K3500 Valve Train Parts, or browse all GMC K3500 parts and accessories.