Polaris Thermostat Direct Fit Replacement For Sportsman Ranger And RZR ATVs UTVs 2002 To 2016

This thermostat is a direct-fit replacement for a broad range of late-model Polaris ATV/UTV cooling systems, covering vehicles from early 2000s up through 2016. It’s designed to maintain proper engine temperatures by regulating coolant flow, helping prevent overheating and cold-running issues on demanding trails or job sites. This aftermarket part is a cost-effective, reliable option when the original unit shows signs of sticking, leaking, or failure to regulate temperature properly.

Built as an aftermarket replacement with OEM cross-reference in mind, it uses a robust iron body and an included gasket to ensure a solid seal and long service life. The unit is engineered to open at the OEM-set temperature and restore consistent coolant circulation, making it a trustworthy choice for farmers and trail riders who depend on consistent cooling performance under load. Direct-fit installation and gasket-included packaging simplify service and reduce the need for additional parts.

Comprehensive Vehicle Fitment

Source data and model coverage compiled from retailer-fitment listings and aftermarket cross-reference pages.

Product Specifications

Notes: The 34 mm diameter and gasket-included design are confirmed by aftermarket specifications for this dual OEM cross-reference part set.

OEM & Aftermarket Cross-Reference Information

Cross-reference details and official-looking interchange references are supported by multiple aftermarket listings, including RMSTATOR and third-party retailers.

What's Included

The box includes the following components ready for installation:

• Thermostat (34 mm opening)
• Rubber gasket (EPDM material common to replacement kits)

Note: Related components such as mounting bolts, coolant hoses, or clamps are not included in this kit. Includes and gasket details supported by aftermarket listings indicate the gasket is included with the thermostat.

Why Choose This Aftermarket Replacement?

• Direct-Fit Compatibility: Engineered for plug-and-play installation with existing Polaris cooling housings across the listed models.
• OEM Cross-Reference: Uses the well-known OEM references 7052308 and 7052352, ensuring broad compatibility and easy cross-checks.
• Premium Materials: Iron body construction and a included gasket deliver durable sealing under high-heat coolant conditions.
• Performance Restoration: Restores proper cooling flow and temperature regulation to prevent overheating during heavy work or demanding trail use.
• Cost-Effective Reliability: A high-value aftermarket choice that rivals OEM performance at a lower price point.
• Availability Across a Wide Range of Models: Compatibility spans multiple families (Sportsman, Ranger, RZR, etc.), making stocking easier for workshops and fleets.

Installation Notes:

• Safety first: Disconnect the battery before service to avoid electrical shorts while accessing the thermostat housing.
• Coolant handling: Drain the cooling system to a safe level before removing the old thermostat to avoid spills and scalding.
• Clean mating surfaces: Thoroughly clean the thermostat housing mating surface to ensure a proper seal and prevent leaks.
• Gasket seating: Install the gasket dry or lightly lubricated with coolant to ensure a uniform seal without gaps.
• Orientation matters: Align the thermostat with the factory flow direction and seating groove; check that the valve opens freely without binding.
• Bleed and refill: Refill the cooling system and bleed air per the service manual to prevent air pockets that can cause overheating.

Why Upgrade?

Running a worn or failed thermostat compromises engine cooling, increasing the risk of overheating, warped heads, and coolant leaks. Upgrading to this aftermarket replacement restores accurate temperature control and reliable coolant flow, helping protect the engine under load and extend the lifespan of the cooling system.