Universal Air HV1201C HVAC Heater Control Valve

Heater Control Valve for GM HVAC Systems

Universal Air HV1201C is a heater valve vacuum HVAC component used in temperature control systems that rely on vacuum-actuated coolant flow control. It is a direct-fit style replacement for select Chevrolet, Pontiac, and Oldsmobile applications from 1999-2002.

• Brand: Universal Air Heater Valve Vacuum
• Part number: HV1201C
• HVAC heater control valve for vacuum-operated temperature control systems
• Fits select GM passenger cars with confirmed year-specific applications
• Search phrase support: Chevrolet Cavalier heater valve vacuum, Pontiac Sunfire heater control valve, Oldsmobile Alero HVAC valve

Application Details

Compatible With 2000-2002 Chevrolet Cavalier, Heater Valve Vacuum; 2000-2002 Pontiac Sunfire, Heater Valve Vacuum; 1999-2001 Oldsmobile Alero, Heater Valve Vacuum; 1999-2001 Pontiac Grand Am, Heater Valve Vacuum; and 1999 Chevrolet Malibu, Heater Valve Vacuum. The HV1201C is built for vehicles that use vacuum control to regulate heater coolant flow through the HVAC system.

This part cross-references no listed interchange numbers in the provided data. If you are replacing a failed heater control valve on a Chevrolet Cavalier, Pontiac Sunfire, or Pontiac Grand Am, verify the vacuum routing and OE-style connection points before installation.

Common Symptoms This Part Can Address

• Heater output stuck on hot or cold
• Loss of temperature control at the dash
• Vacuum-related heater valve operation issues
• Coolant flow not responding to HVAC commands
• Inconsistent cabin heat on GM compact and midsize cars

Installation Notes

Confirm the vehicle uses a vacuum-operated heater valve before replacement. Inspect vacuum lines, hose routing, and coolant connections during service, and bleed the cooling system after installation if the system was opened. Match the original valve layout and port orientation to the removed part for proper operation.

Quality Assurance

Universal Air HVAC components are cataloged for specific vehicle applications to support accurate replacement selection. Part number HV1201C is listed for the confirmed GM fitments above, including 1999-2002 Chevrolet, Pontiac, and Oldsmobile models.