GReddy Radiator Hose Temperature Sensor Adapter – 38mm / 36mm

GReddy’s Radiator Hose Sensor Adapter allows easy installation of a water temp sensor in the upper radiator hose. Designed for 38mm or 36mm inner diameter hoses, this CNC-machined aluminum adapter ensures accurate readings without modifying the radiator or engine block. Ideal for gauges and temperature monitoring in custom or performance setups.

GReddy Radiator Hose Temperature Sensor Adapter – 38mm / 36mm

Brand: TRUST / GReddy Japan

The GReddy radiator hose adapter provides a clean and effective way to install a temperature sensor into your vehicle’s upper radiator hose. Perfect for water temp gauges, it’s designed to work with GReddy temperature sensors and other 1/8PT-compatible sensors.

Constructed from high-quality aluminum and precision-machined for a leak-free fit, this adapter comes in both 36mm and 38mm inner diameter sizes, suiting a wide range of Japanese performance vehicles.

• Fitment: 38mm / 36mm inner diameter radiator hoses
• Material: Aluminum – Anodized finish
• Sensor Port: 1x PT 1/8 (standard GReddy sensor thread)
• Use: For installing aftermarket water temp sensors
• Made in Japan

This is a must-have for custom cooling system monitoring—trusted by tuners worldwide.