Engine Thermostat Housing Assembly for 250cc Water-Cooled Scooters & ATVs

Product Overview

Ensure your engine warms up quickly and maintains its ideal thermal range with this Complete Thermostat Assembly. Designed specifically for 250cc water-cooled engines (CF250/CH250/CN250), this unit includes both the thermostat valve and its protective housing. It effectively regulates the flow of coolant to the radiator, preventing engine wear caused by running too cold and protecting against the catastrophic risks of overheating.

Product Compatibility

A direct replacement for the cooling management system on 250cc horizontal liquid-cooled 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, Joyner
Engine Series	CF250, CH250, CN250 and various 250cc Liquid-Cooled platforms
Fitment Note	Please verify the bolt-hole spacing on your original housing before ordering.

Specifications (Measurement Guide)

To ensure a leak-free installation, cross-reference these precise dimensions:

Feature	Metric	Imperial
Mounting Hole Spacing (A)	27mm	1.06"
Mounting Hole Spacing (B)	41mm	1.61"
Main Port Diameter	32mm	1.25"
Small Port Diameter	14mm	0.55"
Material	High-Grade Anti-Corrosive Alloy & Stainless Steel	--

Key Features

• Dual-Hole Precision Housing: Features a rugged alloy housing with accurately machined mounting holes (27mm/41mm spacing) to ensure a perfect, airtight seal against the engine block.
• Thermal Management Efficiency: The internal thermostat is calibrated to open at precise temperatures, allowing the engine to reach its optimal operating state faster, which significantly improves fuel combustion and power output.
• High-Temperature Resilience: Constructed from premium materials designed to resist the corrosive effects of coolant additives and the mechanical stress of constant thermal cycling.
• Fuel Efficiency Booster: By maintaining a stable and correct engine temperature, this assembly helps reduce internal friction and ensures your vehicle operates at maximum efficiency.
• Plug-and-Play Installation: Engineered as a direct OEM-spec replacement, allowing for a straightforward installation that restores your cooling system's integrity without modifications.