Product Description
Genuine Four Seasons 74612 Heater Control Valve (NORS)
Restore the heating efficiency of your classic GM truck or car with this genuine Four Seasons 74612 Heater Control Valve. This is a vintage New Old Replacement Stock (NORS) part. It uses vacuum to regulate coolant flow to the heater core.
This part is designed for the Heater Hose position on specific 1975-1989 Chevrolet and GMC Trucks/Vans, as well as select Pontiac and Jaguar models.
Key Features:
- Part Number: 74612 (Four Seasons)
- Interchange / Replaces OEM: GM 3039868, GM 14032398
- Position: Heater Hose (Inlet)
- Specs: Vacuum Operated / Plastic Body / 5/8" Ports
- Origin: Made in USA (Vintage Stock)
- Condition: NORS (New Old Replacement Stock)
Verified Vehicle Fitment:
| Make | Model | Year | Engine | Notes |
| Chevrolet / GMC | C/K Truck / G-Series Van | 1975-1989 | All | Heater Control Valve |
| Pontiac | Grand Prix / Bonneville / LeMans | 1978-1987 | All | Heater Control Valve |
Fits Years:
1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989
Unbeatable Prices & Expectations
We scour the country to find the best deals on NOS and NORS parts so we can pass the savings on to you. Our prices are often significantly lower than major competitors.
Please Note: All vehicle fitment data is manually researched from vintage catalogs. While we strive for accuracy, historical data can sometimes be imperfect. Additionally, this part may fit other vehicle makes, models, and years not explicitly listed. We strongly encourage you to perform your own due diligence by comparing our provided photos and specifications to your original part to ensure proper fitment before purchasing.
