Specifications :
Material: Metal
Color: Silver
Pressure Rating: 16 PSI
Depth: 3/4"
Diameter: 2-1/4"
Plunger Diameter: 1-1/2"

Product Details :
The Radiator Cap - Radiator Pressure Cap, Black, Fits Peterbilt, Replaces OEM RC1630, helps to maintain consistent pressure in your vehicle radiator, and minimizes coolant boiling. This radiator valve cap is a direct replacement for OEM part number RC1630. Know more about this radiator pressure cap below:
Size: This radiator valve cap is available in a diameter of 2-1/4", plunger diameter of 1-1/2" and a depth of 3/4". The radiator cap comes with a pressure rating of 16 PSI, i.e. it can maintain a consistent pressure of 16 PSI.
Material & Durability: The radiator cap is durable and last longer. Its corrosion tolerance allows it to withstand engine pressure conditions and perform efficiently.
Application: This radiator cap helps to maintain a consistent pressure in the vehicle radiator, reduces coolant overheating, and releases extra pressure safely to the overflow tank to protect other components from damage.
Compatibility: Check the complete compatibility list below:

Compatible with Other Brands & Their Part Numbers:
Fits Automann: 572.2031
Fits Gates: 31528
Fits : RC1630
Fits OE Aftermarket: 3801702
Fits Road Champion: RC1630-2
Fits Rockwell International: F226000

Installation Instructions
Ensure the engine has cooled completely before beginning.
Unscrew the old radiator cap by turning it counterclockwise.
Inspect the radiator neck for debris or damage, and clean it thoroughly.
Screw the new radiator cap onto the radiator neck until it is hand-tight.
Test the system by running the engine and checking for leaks.

When to Replace Your Radiator Cap
Visible cracks, dents, or other damage to the cap.
Leaking coolant around the cap or radiator neck.
Overheating issues due to loss of system pressure.
Difficulty maintaining the correct coolant level.

Reasons to Choose This Radiator Pressure Cap
Direct replacement for part number RC1630, including Peterbilt.
Durable metal construction ensures long-lasting performance under demanding conditions.
Designed for compatibility with multiple Peterbilt models.

Safety Considerations
Always allow the engine to cool completely before removing or replacing the radiator cap to avoid burns from hot coolant or steam.
Use appropriate protective equipment and tools during installation.
Regularly inspect the radiator cap and cooling system for signs of wear or damage to reduce unexpected failures.

18-month Warranty: This product is covered for one year, 100,000 miles after the installation, or 18 months after the purchase, whichever comes first. The product's warranty is only active when the parts have defective material or workmanship defaults. Inappropriate application will lead to the dismissal of the warranty. Additionally, the warranty doesn't cover the parts that fail or get damaged due to misuse, misapplication, or accident. If the customer wishes to return/replace this product under warranty, reach out to us. The team will verify by doing a thorough inspection and if they find a defect that is covered in the above-mentioned warranty; the product will be replaced without any charge. We disclaim liability for labor or consequential damages of any nature. We request the customers to wait until the claim is resolved and settled from our end after the replacement is requested under warranty.