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Photo of Heater/AC Control Valve, 1974-76 Bonn/Cat/GP
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Old Air Products

Heater/AC Control Valve, 1974-76 Bonn/Cat/GP

Part# : GBC4121
Sold As: Each
Ship Size: Standard
Price Match: Eligible
$28.99
List Price: $32.95
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Vehicle Specific View fitment for 3 models
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Revitalize your heater with a new control valve from OPGI. Each valve is modeled after original equipment and available in either gold cadmium-plated steel or injection molded ABS plastic for corrosion resistance. Valves feature a 5/8” inlet and outlet for water flow as well as a vacuum line to control the operation of the valve itself. Factory-correct hose connections make installation a breeze.

Find Item In This Catalog

  • 2025 Grand Prix 1962-77 213
WARNING: This product can expose you to chemicals including lead, sulfur, nickel, chromium, vanadium, titanium, polyvinyl chloride, and 4,4’-methylenebis (2-chloroaniline), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Vehicle Fitment

Year Make Model Application Details
1974 Pontiac Bonneville Bonneville and Catalina (Heater/AC Valves) - (metal w/plastic)
1976 Pontiac Bonneville Bonneville and Catalina (Heater/AC Valves) - 350 (metal w/plastic)
1974 Pontiac Catalina Bonneville and Catalina (Heater/AC Valves) - (metal w/plastic)
1976 Pontiac Catalina Bonneville and Catalina (Heater/AC Valves) - 350 (metal w/plastic)
1974 Pontiac Grand Prix Grand Prix (Heater/AC valves) - (metal w/plastic)
1976 Pontiac Grand Prix Grand Prix (Heater/AC valves) - 231/250 (metal w/plastic)
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Heater/AC Control Valve, 1974-76 Bonn/Cat/GP
Old Air Products Heater/AC Control Valve, 1974-76 Bonn/Cat/GP