Gates 31564 Radiator Cap

OE Type Radiator Cap for Nissan, Subaru, and Ford

The Gates 31564 OE Type Radiator Cap is built for closed cooling systems that require accurate pressure control and a secure seal. With a 20 psi rating and OE performance sizing, it supports proper system pressure in a wide range of Nissan, Subaru, INFINITI, Mazda, and Ford applications.

Gates OE Type Radiator Cap 31564 is made with corrosion-resistant metal or high-quality plastic, depending on application, to help maintain long service life and consistent cooling-system operation. It is engineered to meet or exceed OEM specifications in function, form, and fit.

Key Features

• 20 psi pressure rating for closed coolant recovery systems
• OE performance construction for factory-style fit and function
• Corrosion-resistant materials for durability in cooling-system service
• Mini cap design with 1.06 in cap depth
• Filler neck dimensions: 1.26 in inside diameter, 1.69 in outside diameter, 0.63 in depth
• Shell diameter: 2.59 in
• Meets or exceeds OEM specifications for form, fit, and function

Detailed Description

This radiator cap is designed for vehicles that use a mini cap, closed-system cooling setup with a 20 psi pressure requirement. The Gates 31564 helps maintain the correct pressure level in the radiator and coolant recovery system, which is critical for stable engine temperature control. It is a direct OE-style replacement for many Nissan Altima, Nissan Maxima, Nissan GT-R, Subaru Impreza, Subaru WRX, and INFINITI Q50 applications, along with additional Ford, Mazda, and other listed vehicles.

This part cross-references Monroe Shocks & Struts 33086 for the same application. Gates 31564 is also listed with OE comparison rating of OE Performance and is built to meet environmental regulatory standards that reduce air pollution.

What It Helps Address

• Loss of cooling-system pressure
• Coolant overflow or improper recovery tank operation
• Radiator cap wear from corrosion or heat cycling
• Incorrect cap fitment on closed-system filler necks
• Pressure-related overheating concerns

Installation Notes and Tips

Verify filler neck dimensions before installation: 1.26 in inside diameter, 1.69 in outside diameter, and 0.63 in filler neck depth. Confirm the vehicle uses a closed coolant recovery system and a 20 psi cap specification. For fitment, this part is listed for applications such as Fits 2007-2024 Nissan Altima, N/A; Fits 2009-2023 Nissan Maxima, N/A; and Fits 2021-2023 Subaru Impreza, N/A. It also appears in applications such as Fits 2014-2017 INFINITI Q50, N/A and Fits 2012-2014 Ford F-150, N/A.

Before replacing the cap, allow the engine to cool completely and inspect the filler neck sealing surface for damage, debris, or corrosion. A clean sealing surface helps the cap maintain the specified pressure rating.

Quality Assurance

Gates manufactures this OE Type Radiator Cap to meet or exceed OEM specifications in function, form, and fit. The corrosion-resistant construction and pressure-control design support consistent performance in demanding cooling-system service.