Gates 31336 Radiator Cap

OE Type Radiator Cap for Reliable Cooling

The Gates 31336 OE Type Radiator Cap is built to maintain proper cooling system pressure in a wide range of import and domestic applications. With a 16 psi pressure rating and OE performance standards, it supports consistent radiator sealing for vehicles such as the Hyundai Elantra, Kia Telluride, Nissan Frontier, and Subaru Outback.

Gates radiator pressure caps use corrosion-resistant metal or high-quality plastic, depending on application, to deliver accurate pressure control and long service life. Part number 31336 is a mini cap for closed coolant recovery systems and is engineered to match OEM specifications in function, form, and fit.

Key Features

• Gates 31336 OE Type Radiator Cap
• 16 psi pressure rating with SAE pressure range of 14-18 psi
• Mini cap design for closed coolant recovery systems
• Cap depth: 1.06 in; filler neck depth: 0.63 in (16 mm)
• Filler neck inside diameter: 1.26 in (32 mm)
• Filler neck outside diameter: 1.69 in (43 mm)
• Shell diameter: 2.59 in
• Built to meet or exceed OEM specifications in function, form, and fit

Product Details

This radiator cap is intended for vehicles that require a 16 psi OE-style mini cap with the listed neck dimensions. Gates 31336 is used across many fitments, including 2021-2025 Hyundai Elantra, 2022-2025 Kia Telluride, 2022-2025 Subaru Outback, and 2022-2025 Nissan Frontier. It also cross-references Dorman - HELP 46045 and 54237 for the same application.

As part of the Gates OE Type Radiator Cap line, this component focuses on accurate pressure regulation and dependable sealing rather than generic universal fitment. That makes it a practical replacement for drivers searching for a radiator cap for 2022-2024 Mazda CX-5, 2021-2024 Nissan TITAN, or 2021-2024 Subaru WRX with the correct OE-style specifications.

What It Helps Address

• Loss of radiator pressure from a worn or weak cap
• Coolant overflow or improper recovery system operation
• Pressure-related boiling point reduction in the cooling system
• Sealing issues caused by corrosion or cap wear
• Fitment problems when replacing an OE-style mini radiator cap

Installation Notes and Tips

• Verify filler neck inside diameter, outside diameter, and depth before installation.
• Confirm the vehicle uses a closed coolant recovery system and a 16 psi cap.
• Inspect the radiator neck and sealing surfaces for damage, corrosion, or debris.
• Replace the cap only after the cooling system has cooled completely.
• Use the vehicle’s service information to confirm the correct application for your model year.

Quality Assurance

Gates manufactures this radiator cap to meet or exceed OEM specifications and environmental regulatory standards. The corrosion-resistant construction is selected to support long service life and accurate pressure control across confirmed applications such as the Hyundai Elantra, Kia Forte, and Subaru Forester.