Genuine Four Seasons 74606 Heater Control Valve (NORS)
Restore the heating function of your classic GM muscle car with this genuine Four Seasons 74606 Heater Control Valve. This is a vintage New Old Replacement Stock (NORS) part. It uses a vacuum diaphragm to regulate coolant flow, ensuring your cabin stays warm.
This part is designed for the Heater Hose position on specific 1964-1968 General Motors A-Body and B-Body vehicles, including Chevelle, GTO, and LeSabre.
Key Features:
- Part Number: 74606 (Four Seasons)
- Interchange / Replaces OEM: GM 3150022, Delco 15-555
- 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 |
Chevelle / El Camino |
1964-1968 |
All |
Heater Control Valve |
| Pontiac |
GTO / LeMans / Tempest |
1964-1967 |
All |
Heater Control Valve |
| Oldsmobile |
Cutlass / F85 / 442 |
1964-1967 |
All |
Heater Control Valve |
Fits Years:
1964 1965 1966 1967 1968
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.
