Polaris Pro R Thermostat Housing | ZRP Billet Upgrade UTV rear mud flaps connects to standard 1" and

connects to standard 1" and 3/4" radiator hoses

Fits 2015-2021 Polaris RZR 900

Mounting Type: Bolt-On

Boost your Polaris RZR XP1000 or RS1’s performance and exhaust note with the RPM Slip-On Sport Muffler

Polaris Pro R Thermostat Housing | ZRP Billet Upgrade UTV rear mud flaps connects to standard 1" andPro R Thermostat Housing The ZRP Polaris RZR Pro R Billet Thermostat Housing is a critical reliability upgrade for high performance Pro R builds. While the Pro R platform has quickly become one of the most capable and tunable UTVs on the market, the OEM cast thermostat housing with press fit hose barbs is a known weak point, especially under repeated heat cycles and aggressive driving. Over time, factory press fit barbs can loosen, leading to coolant