Description

When cooling issues arise, or leaks form around the water pump and thermostat, worn seals or a tired thermostat are often the cause. This Polaris 400/500 Water Pump & Thermostat Rebuild Kit gives you the parts needed to restore proper cooling flow and temperature control.

Because this kit includes upgraded, OE-style components, you replace worn pieces with parts that fit right and help reduce future leaks. In addition, REV6 verifies fit and quality before shipment, so you can install with confidence.

THIS KIT INCLUDES

• Upgraded thermostat (OE replacement)
• Thermostat seal
• Mechanical water pump seal
• Water pump seal
• Water pump bearing
• Housing gasket

LEARN MORE & GET SUPPORT

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

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 cooling leaks, overheating, or thermostat stick are costing you reliability and ride time, this rebuild kit gives you the correct seals and components to fix it right. It ships nationwide—add it to your cart and restore dependable cooling with confidence.

We proudly support our veterans with dedicated discounts.