Subaru OEM Coolant Temp Sensor O-Ring (13-20 BRZ) | 803912140

Overview

The Genuine Subaru OEM Coolant Temperature Sensor O-Ring (Part #803912140) is the factory-spec sealing ring designed to maintain a leak-free connection at your BRZ's coolant temperature sensor. Engineered to OEM tolerances, this small but critical component prevents coolant leaks that can lead to overheating and inaccurate engine temperature readings. Whether you're performing routine maintenance or replacing a worn seal, this exact-fit Subaru OEM o-ring ensures reliable, long-lasting performance on 2013–2020 Subaru BRZ models.

Key Features & Benefits

• Genuine Subaru OEM Quality – Manufactured to factory specifications for an exact fit and reliable seal, eliminating guesswork with aftermarket alternatives.
• Prevents Coolant Leaks – Creates a proper seal around the coolant temperature sensor to stop seepage that can cause overheating or inaccurate gauge readings.
• Exact-Fit Guarantee – Designed specifically for the 2013–2020 Subaru BRZ, ensuring no modifications or adaptors are needed during installation.
• Factory Warranty Backed – Covered under Subaru's genuine parts warranty for peace of mind.
• Heat and Chemical Resistant – Formulated to withstand the demanding thermal and chemical environment of the engine cooling system.

What's Included

• 1x Genuine Subaru OEM Coolant Temperature Sensor O-Ring (Part #803912140)

Specifications

Fitment & Compatibility

This Genuine Subaru OEM Coolant Temperature Sensor O-Ring is compatible with the following vehicles:

Always verify your vehicle's part number before ordering. Cross-reference Subaru OEM Part #803912140 to confirm fitment with your specific BRZ build.

Installation

This o-ring is a straightforward replacement during coolant temperature sensor service. It is recommended to replace this o-ring any time the coolant temperature sensor is removed to ensure a fresh, leak-free seal. Basic mechanical knowledge and common hand tools are sufficient for this repair; however, consult a qualified Subaru technician if you are unsure. Always allow the engine to cool completely before servicing any cooling system components.