88°C Radiator Water Temperature Sensor & Thermostat Switch for 250cc

Product Overview

Protect your engine from the risks of overheating with this High-Precision Water Temperature Sensor. Specifically engineered for 250cc water-cooled engines, this switch acts as the "brain" of your cooling system, automatically triggering the radiator fan when temperatures reach 88°C. By maintaining the engine within its optimal thermal range, it ensures consistent power delivery and prevents costly damage to the cylinder head and gaskets.

Product Compatibility

A direct replacement for the thermal switch found on classic 250cc liquid-cooled horizontal engines.

Vehicle Type	Common Compatible Brands & Models
Scooter / Moped	Honda Helix (CN250), Honda Elite (CH250)
ATV / Go Kart	250cc Water-Cooled Quads, Hammerhead 250, TrailMaster
Engine Series	CF250, CH250, CN250 and similar 250cc platforms
Fitment Note	Please verify your radiator or thermostat housing thread size before purchase.

Specifications

To ensure a leak-free fit, please cross-reference these technical measurements:

Feature	Metric Measurement	Imperial Measurement
Operating Temp	88°C (Fan On)	190.4°F
Thread Diameter	15mm	0.59"
Thread Length	11mm	0.43"
Material	Anti-Corrosive Brass & High-Sensitivity Thermistor	--
Connection	Single-Pin / Multi-Pin Terminal (As pictured)	--

Key Features

• Accurate Thermal Monitoring: Utilizes highly sensitive internal components to detect minute changes in coolant temperature, providing instant response to ensure the fan activates the moment it's needed.
• Anti-Corrosive Brass Housing: The main body is constructed from high-quality brass to resist the erosive effects of long-term exposure to coolant and additives, ensuring stable electrical conductivity.
• Advanced Sealing Technology: Engineered with a precision-threaded base to create a watertight seal, preventing coolant leaks and resisting vibration even in harsh off-road environments.
• Optimized Fuel Economy: By managing the engine's thermal cycles accurately, this switch helps maintain peak combustion efficiency, which directly improves fuel consumption and power output.
• Enhanced Safety Protection: Acts as a fail-safe to prevent engine seizure and heat-related component failure, significantly prolonging the service life of your 250cc motor.