Calorstat RC0068 Radiator Cap

Calorstat RC0068 Radiator Cap Overview

The Calorstat RC0068 is a standard radiator cap built with stainless steel and rubber for a secure seal on the cooling system. It uses a cam-on attachment type and an OEM performance grade to support proper pressure control in the radiator neck.

With a silver finish, round shape, and 1.49-inch filler neck inside diameter, this radiator cap is a direct-fit option for select classic Toyota, Ford, Chevrolet, Chrysler, and Pontiac applications. The RC0068 is specified at 4.0 maximum pressure and is a practical choice for restoring cooling system function on older vehicles.

Key Features

• Brand: Calorstat
• Part number: RC0068
• Radiator cap with standard design
• Stainless steel and rubber construction
• Cam-on attachment type for secure engagement
• Silver cap finish with round profile
• 1.49-inch filler neck inside diameter
• 4.0 maximum pressure rating
• OEM performance grade

Detailed Description

The Calorstat RC0068 radiator cap is engineered for cooling systems that require a 1.49-inch filler neck and a 4.0 pressure rating. Its stainless steel body and rubber sealing components are selected to maintain a consistent seal at the radiator neck, helping the system hold pressure as intended. This makes the RC0068 a suitable replacement for classic vehicle cooling service where correct cap fit and pressure specification matter.

Compatible With select 1968 Toyota Corolla and 1968 Toyota Corona applications, as well as 1953-1956 Ford F-100, F-250, and F-350 models. It also matches 1952-1953 Chevrolet Bel Air, 1953 Chevrolet Corvette, 1950-1951 Chrysler Newport, 1950 Chrysler Imperial, 1950 Chrysler New Yorker, 1950 Chrysler Town & Country, and 1950 Pontiac Catalina applications. This part cross-references Gates (e.g., 31524) for the same application.

What This Part Helps Address

• Loss of radiator pressure from a worn or weak cap
• Coolant seepage at the filler neck seal
• Incorrect cap fit on a 1.49-inch radiator neck
• Cooling system service on classic Toyota, Ford, Chevrolet, Chrysler, and Pontiac models
• Replacement of a damaged or corroded radiator cap

Installation Notes and Tips

Confirm the filler neck inside diameter matches 1.49 inches before installation. Inspect the radiator neck, sealing surface, and cam-on engagement points for wear, corrosion, or distortion before fitting the cap. Install only on a cool engine and verify that the cap seats fully and locks into place.

Quality Assurance

Calorstat RC0068 is built to OEM performance standards for proper cooling-system service. Verify application details against the vehicle’s radiator neck specification and pressure requirement before installation.