Calorstat RC0052 Radiator Cap

Calorstat RC0052 Radiator Cap

The Calorstat RC0052 is a standard radiator cap built with stainless steel and rubber for a secure seal and consistent cooling-system pressure control. It is a silver, round, cam-on cap with OEM performance grading and a 13.0 psi maximum pressure rating.

Compatible With a wide range of classic and late-model applications, including Ford Mustang, Jeep Cherokee, and Toyota Corolla fitments where a 1.49-inch filler neck and 13 psi cap specification are required. The RC0052 is a direct service part for drivers replacing a worn or leaking radiator cap on supported vehicles.

Key Features

• Stainless steel and rubber construction
• Silver finish with round profile
• Cam-on attachment type for secure engagement
• Standard radiator cap design
• OEM performance grade
• 1.49-inch filler neck inside diameter
• 13.0 psi maximum pressure rating
• Height: 1.1 inches

Detailed Description

Calorstat RC0052 is engineered as an OEM-performance radiator cap for cooling systems that specify a 13 psi pressure rating and a 1.49-inch filler neck inside diameter. Its stainless steel body and rubber sealing components are selected to maintain a dependable seal at the radiator neck, helping the system hold pressure as intended. This part number, RC0052, also cross-references Gates 31527 for the same application.

Fitment coverage includes many Ford, Jeep, Toyota, Nissan, Mazda, Porsche, BMW, Mercedes-Benz, and Chevrolet applications. Examples include Fits 1979-1997 Ford Mustang, N/A; Fits 1987-1995 Jeep Cherokee, N/A; and Fits 1975-1986 Toyota Corolla, N/A. It also appears in applications such as Fits 1958-1970 Chevrolet Impala, N/A and Fits 1981-1986 Nissan Maxima, N/A where the listed pressure rating matches the vehicle requirement.

What It Helps Address

• Coolant loss from a cap that no longer seals properly
• Pressure control issues in a radiator system
• Steam or overflow caused by a weak cap spring or seal
• Service replacement for a damaged or corroded radiator cap
• Restoration of correct cap specification on supported vehicles

Installation Notes and Tips

Verify the filler neck inside diameter is 1.49 inches before installation. Confirm the cooling system calls for a 13 psi cap and inspect the radiator neck, gasket surface, and sealing area for corrosion or damage before fitting the cap. Turn the cam-on cap fully into place so it seats evenly and locks correctly.

Quality Assurance

Calorstat RC0052 is built to OEM performance standards for the specified application range. Its materials, pressure rating, and fitment data support direct replacement use on listed vehicles, including Ford Mustang, Jeep Cherokee, and Toyota Corolla applications.