Calorstat RC0047 Radiator Cap

Radiator Cap for Toyota and Lexus Cooling Systems

The Calorstat RC0047 radiator cap is a standard OEM-performance replacement built with stainless steel and rubber for dependable sealing at the radiator filler neck. It is rated to 13.0 psi and uses a cam-on attachment style for a secure fit on the specified applications.

• Stainless steel and rubber construction
• Silver finish with round shape
• Standard radiator cap design
• Cam-on attachment type
• Maximum pressure rating: 13.0 psi
• Filler neck inside diameter: 0.98 in.
• OEM performance grade

Detailed Product Overview

Calorstat RC0047 is a radiator cap designed for a wide range of Toyota, Lexus, Subaru, Mitsubishi, Mazda, Scion, Chrysler, and Dodge applications. It is specified for vehicles such as the Toyota Corolla, Camry, RAV4, Highlander, Prius, Sienna, and Lexus ES, NX, RX, and UX models, making it a practical replacement for cooling systems that require a 0.98-inch filler neck and 13 psi pressure rating. The RC0047 helps maintain proper system pressure and supports stable coolant operation in OEM-recommended applications.

This part cross-references Gates 31411 and Anchor 10241 for the same application. The Calorstat RC0047 part number is also useful when matching OE-style radiator cap specifications across Toyota and Lexus cooling system service work.

What This Radiator Cap Helps Address

• Coolant loss from a worn or weak cap seal
• Pressure drop in the cooling system
• Steam or overflow caused by poor cap retention
• Radiator neck sealing issues on specified Toyota and Lexus models
• Replacement needs for aging OEM-style radiator caps

Installation Notes and Tips

Verify the filler neck inside diameter before installation and confirm the 13.0 psi pressure specification matches the vehicle requirement. Inspect the radiator neck, sealing surface, and rubber gasket area for wear, corrosion, or debris before installing the cap. The cam-on design should lock securely without forcing the cap.

Body fitment examples include Fits 2024-2025 Toyota Corolla, N/A; Fits 2024-2025 Lexus RX350, N/A; and Fits 2021-2023 Toyota RAV4, N/A. Additional coverage includes Fits 1995-2023 Toyota Corolla, N/A and Fits 1995-2001 Toyota Camry, N/A, depending on the exact application listed.

Quality Assurance

Calorstat manufactures this radiator cap to OEM performance standards using stainless steel and rubber materials for consistent sealing and pressure control in the specified applications.