Menu

(12021) CAP 45mm OD CHEVY/DODGE/FORD/GEO - Motorad / Stant

Part #: WY3121

This professional-grade radiator cap, manufactured by Motorad / Stant (Model WY3121, part 12021), is engineered to provide precise pressure regulation and reliable sealing for a diverse range of automotive cooling systems. Crafted for professional technicians and mechanics, this essential component ensures optimal engine performance and helps prevent costly damage due to improper system pressure.

Key Features

  • Exact Fit 45mm OD: Designed with a precise 45mm outside diameter for secure and accurate fitment on compatible vehicle applications.
  • Broad Vehicle Compatibility: Specifically engineered for use with cooling systems in a wide range of Chevrolet, Dodge, Ford, and Geo models.
  • Durable Construction: Manufactured from high-quality materials to withstand the extreme temperatures and pressures inherent in automotive and industrial environments.
  • Reliable Pressure Regulation: Maintains consistent system pressure, crucial for preventing coolant loss, cavitation, and engine overheating in demanding operational conditions.
  • Professional-Grade Assurance: Produced by trusted industry leaders Motorad and Stant, ensuring consistent performance and long-term durability.

Applications

This versatile radiator cap is an ideal replacement or upgrade for various automotive cooling system components, including main radiators and expansion tanks. Its broad compatibility makes it suitable for servicing numerous Chevrolet, Dodge, Ford, and Geo passenger cars and light trucks, providing the dependable sealing and pressure control necessary for efficient and safe engine operation in a professional shop environment.

Specifications

  • Manufacturer: Motorad / Stant
  • Model Number: WY3121 (12021)
  • Outside Diameter (OD): 45mm
Only 1 left in stock - order soon

$16.45

Add to Cart:

This product was added to our catalog on Sunday 31 May, 2026.

Similar Products