Genuine Accessories - STI Parts - Radiator Cap for Subaru BRZ / Levorg / WRX & Other Models

Product Description

Genuine Accessories - STI Parts - Radiator Cap for Subaru BRZ / Levorg / WRX & Other Models

The Genuine STI Radiator Cap is a functional performance upgrade designed for Subaru BRZ, Levorg, WRX, and other compatible Subaru models. Developed as part of Subaru’s genuine STI parts range, this radiator cap combines motorsport-inspired engineering with factory-level reliability.

Designed to maintain higher and more stable cooling system pressure compared to standard caps, the STI radiator cap helps improve cooling efficiency under demanding driving conditions. This makes it a popular upgrade for spirited street driving, track use, or performance-focused builds where consistent engine temperatures are critical.

As a genuine STI component, the radiator cap is manufactured to Subaru’s strict OEM standards for pressure rating, sealing performance, and durability. It features authentic STI branding and a robust construction that ensures long-term reliability when paired with compatible cooling systems.

Easy to install and designed as a direct replacement, the STI radiator cap fits standard Subaru radiator filler necks with no modification required. Whether you’re refreshing a worn factory cap or enhancing your cooling system with a genuine performance part, this upgrade delivers functional benefits with authentic STI credibility.

Product Features

• Compatible with the most make and model for Subaru models

• 1.3 bar (18.9 psi) for improved cooling system performance

• Higher pressure rating helps improve cooling efficiency

• Enhances cooling stability during spirited or driving
  

• Subaru Genuine Accessories – Part Number: ST45137ST0XX

Product Includes

• (1) Genuine Accessories - STI Parts - Radiator Cap
  

Product Compatibility

• Universal (Most of Subaru models)

Product Terms & Conditions – Fitment, Returns & Warranty

We strongly recommend conducting a test fit of all products prior to any painting, modification, or installation. This ensures compatibility and fitment, and helps prevent issues that may affect your eligibility for a return or warranty claim.

• Products must be returned in their original, unused, and resalable condition, including all original packaging and accessories.

• Any product that has been installed, painted, modified, or damaged may not be eligible for return or warranty consideration.

• Claims for return or warranty will not be accepted if the item shows signs of tampering or use beyond the test fit stage.

Our policies comply with the Australian Consumer Law (ACL), which provides certain guarantees that cannot be excluded. These include the right to a repair, replacement, or refund if a product is faulty or not as described.

Our team takes great care to achieve the most accurate paint match possible, factoring in the natural differences between plastic and metal surfaces, which can affect paint bonding and finish. While slight shade variations may occur due to these material differences, we proudly deliver a 99% paint match accuracy across all factory shades -with the exception of Ceramic White, which reaches up to 95% accuracy due to its unique pigmentation characteristics.

While we strive to match paint colours as closely as possible, please note the following conditions regarding paint-related claims:

• Paint finish and colour variation are not covered under warranty unless the product is painted in the incorrect colour code compared to the customer’s order or, delivered with significant defects such as peeling, cracking, or flaking within 12 months of purchase

• Slight differences in paint appearance caused by surface material (e.g. plastic vs. metal), lighting conditions or application methods, which are considered normal and not eligible for refund, exchange, or warranty claims.

• Any claims related to paint issues must be submitted within 7 days of receiving the product, along with clear photographs for assessment.

• Warranty does not apply if the item has been installed, altered, repainted, or otherwise modified. This also apply to damages due to misuse, accidents, or improper storage

For more information, please refer to our Refund Policies located on our website for the full Terms & Conditions. 

If you have any questions or concerns, please contact our customer support specialist at the email address provided or use the contact form on our website.