Water Temp Gauge Hose Adapter | 28mm to 40mm Radiator Sensor Pipe

Monitor your engine's coolant temperature with a reliable water temp gauge hose adapter. This sensor pipe allows you to install a temperature gauge by tapping directly into your radiator hose. Made from lightweight aluminum with a durable anodized finish, it is built for long-lasting performance under the hood.

This adapter is designed for hoses with an outer diameter ranging from 28mm to 40mm. It features a 1/8 NPT threaded port for a water temperature sensor. The aviation-grade aluminum construction resists corrosion and keeps the part lightweight, making it a practical upgrade for any engine bay.

Adding a temperature gauge helps you keep an eye on coolant heat levels, reducing the risk of overheating. This adapter makes installation straightforward by providing a secure connection point in your cooling system. The anodized finish also gives a clean, finished look to your setup.

Each adapter comes with two clamps for a snug fit. Choose from multiple sizes and colors to match your vehicle's style. Whether you are building a custom project or replacing a worn part, this sensor adapter delivers a simple and effective solution.

Key Features and Benefits

- Lightweight aluminum construction that resists corrosion for long-term use

• 1/8 NPT threaded port that allows easy installation of a water temperature sensor

• Available in multiple hose sizes from 28mm to 40mm to fit a variety of vehicles

• Anodized finish in black, blue, or red for added durability and a clean appearance

• Includes two clamps for a secure and leak-free connection

Who Is This For

- Car enthusiasts adding an aftermarket water temperature gauge to their engine

• Mechanics or DIYers replacing a worn or missing radiator hose adapter

• Custom builders looking for a clean and durable sensor mounting solution

• Anyone upgrading their cooling system monitoring for better engine protection

Usage Scenario

Mark noticed his vintage truck's temperature gauge was not working properly. He wanted to install a new aftermarket gauge but needed a clean way to connect the sensor to the coolant hose. He picked this 36mm adapter in black, slipped it into the upper radiator hose, and secured it with the included clamps. The 1/8 NPT port held the sensor firmly, and within minutes, he had an accurate coolant temperature reading. The anodized finish blended well with the engine bay, giving it a factory-like look.

Micro Comparison

Some sensor adapters are made from plastic or brass that can crack or corrode over time. This adapter uses aviation-grade aluminum with an anodized finish for better strength and resistance to heat and moisture. Its lightweight design also adds minimal weight to the hose, reducing strain on the cooling system compared to heavier metal options.

Specifications

Material: Aluminum + Stainless Steel

Length: 68 mm / 2.7 in

Hose Outer Diameter Options: 28 mm / 30 mm / 32 mm / 34 mm / 36 mm / 38 mm / 40 mm

Thread: 1/8 NPT

Color Options: Black, Blue, Red

Weight: 0.14 kg / 4.9 oz

Package Includes

- 1 x Water Temperature Sensor Adapter (100% brand new, never used or installed)

• 2 x Clamps

Why You Will Love It

This adapter gives you a simple way to add a temperature gauge without cutting or welding. The aluminum build feels solid yet stays light, so your hoses are not weighed down. With multiple sizes and color choices, you can match your engine bay style while keeping your coolant temperature in check.

Questions and Answers

Question: What thread size does this adapter use for the sensor?

Answer: It uses a standard 1/8 NPT thread, which fits most aftermarket water temperature sensors.

Question: Can I use this adapter on a silicone radiator hose?

Answer: Yes, as long as the inner diameter of the hose matches the outer diameter of the adapter (28mm to 40mm), it works with silicone or rubber hoses.

Question: Does this adapter come with clamps?

Answer: Yes, two clamps are included to secure the adapter to your hose.

Question: What colors are available for this adapter?

Answer: It is available in black, blue, and red anodized finishes.

Question: Is this adapter suitable for a daily driver or only for race cars?

Answer: It works for both daily drivers and performance vehicles. The aluminum construction is durable enough for regular use on the road.

Question: How do I know which size to choose?

Answer: Measure the outer diameter of your radiator hose and pick the adapter size that matches that measurement. Options range from 28mm to 40mm.