Description

This Polaris Ranger 400/500 Replacement Thermostat gives you an OE-style upgraded unit that restores proper temperature control and helps protect your engine.

Because this is a direct replacement for the factory thermostat, it installs easily and helps reduce the risk of future cooling issues. In addition, REV6 inspects every thermostat for fit and quality before shipment so you receive a dependable part with every order.

THIS KIT INCLUDES

• Upgraded thermostat (OE replacement)

PEOPLE ALSO SEARCH

Polaris 400/500 water pump and thermostat rebuild kit

LEARN MORE & GET SUPPORT

First, review coverage basics in our warranty policy. Next, find cooling system tips on the REV6 blog. You can also browse common questions in our FAQ center or contact our team for fitment confirmation or installation support.

FITMENT

Polaris Sportsman 500 (all models)
1999–2013
Polaris Sportsman 400 (all models)
1999–2014
Polaris ATP 500 (all models)
2004–2005
Polaris Ranger 500 (all models)
2002–2014
Polaris Ranger 400 (all models)
2002–2014
Polaris Big Boss 500 (all models)

TAKE ACTION
If your cooling system is running hot or your fans behave erratically, this updated thermostat gives you a reliable OEM-style replacement. It ships nationwide—add it to your cart and restore proper engine temperature control with confidence.

We proudly support our veterans with dedicated discounts.