Product Description
Genuine Four Seasons 74661 Heater Control Valve (NORS)
Restore the heating performance of your classic Chevy or GMC Van with this genuine Four Seasons 74661 Heater Control Valve. This is a vintage New Old Replacement Stock (NORS) part. It is a vacuum-operated valve that regulates coolant flow to the heater core.
This part is designed for the Heater Hose position on specific 1973-1975 Chevrolet and GMC G-Series Vans.
Key Features:
- Part Number: 74661 (Four Seasons)
- Interchange / Replaces OEM: GM 342930, Delco 15-5152
- Position: Heater Hose (Inlet)
- Specs: Vacuum Operated / Metal 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 | G10 / G20 / G30 Van | 1973-1975 | All | Heater Control Valve |
| GMC | G1500 / G2500 / G3500 Van | 1973-1975 | All | Heater Control Valve |
Fits Years:
1973 1974 1975
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.
