Mishimoto High-Pressure 1.3 Bar Radiator Cap - Small - One-Way (MMRC-13-ONWY) - Select Subaru 2002-2024

Fits select 2002-2024 Subaru Baja, Crosstrek, Forester, Impreza, Legacy, Outback, WRX, and WRX STI. This radiator cap is a direct-fit performance upgrade for your Subaru cooling system, designed to handle the increased heat and pressure of demanding driving conditions.

The Mishimoto High-Pressure 1.3 Bar Radiator Cap replaces your factory cap to raise the boiling point of your engine coolant. By increasing the pressure at which the system releases fluid into the overflow reservoir, it maintains higher cooling efficiency during spirited driving or track use. This specific model features a one-way valve design to match the OEM functionality of your Subaru’s cooling system, ensuring proper coolant recovery and pressure regulation.

• Increased Pressure: Rated at 1.3 bar (19 psi) to raise the coolant boiling point for improved safety and efficiency.
• One-Way Functionality: Engineered to match the factory one-way valve design for reliable cooling system operation.
• Direct Fit: Precision small-style cap designed for a seamless installation on compatible Subaru radiator necks.
• Technical Detail: Includes a non-directional Mishimoto logo sticker to ensure a clean look regardless of final orientation.
• Manufacturer Part Number: MMRC-13-ONWY