The PERRIN Coolant Hose Adapter makes it easy to install a water temperature sensor in your vehicle. Designed for Subaru and other vehicles with 1.25" upper radiator hoses, this adapter simplifies the installation of aftermarket gauges.

Quick Sensor Integration

This adapter allows you to add a 1/8” NPT temperature sensor to your upper radiator hose with minimal effort. Perfect for installing aftermarket water temp gauges where no stock sensor provision exists.

High-Quality Construction

Made from CNC-machined aluminum and anodized black for corrosion resistance, the PERRIN adapter is built for long-term durability under high-heat conditions. Its smooth interior ensures unrestricted coolant flow.

Universal Fitment

While designed with Subaru vehicles in mind, the 1.25” diameter also fits a wide range of other vehicles using similar-size radiator hoses.

In The Box

• (1) Coolant Hose Adapter

• (2) Hose Clamps

• Warranty & Instructions

Dimensions

• Hose Size: 1.25 inches (32mm)

• Thread Size: 1/8” NPT (Sensor not included)

Compatibility

• Fits most vehicles with 1.25” radiator hoses

• Designed primarily for Subaru vehicles

Installation Time

Estimated DIY Install Time: 15–30 minutes