Radiator Cap Fitment: Pressure Rating, Seal and OE Checks
Radiator caps can look interchangeable while differing in pressure specification, seal arrangement and neck design. The vehicle and OE application should lead the sourcing decision.
Confirm the cooling-system location
State whether the vehicle uses a radiator cap, expansion-tank cap or another pressure cap. Keep the original reference and vehicle application with the request.
Review documented specifications
- OE number and superseded reference
- Pressure rating where documented
- Seal and neck design
- Vehicle model, chassis, engine and production range
- Quantity and package requirement
Do not infer pressure from a photograph
Shape and label markings may help identify a cap, but unsupported pressure or cooling-performance claims should not be added. Use the catalog and VIN when the application is unclear.
Browse cooling parts and request a quote
Review Cooling Parts, search BILUSI site search by OE number, and send the documented application and quantity through the BILUSI wholesale inquiry form.