RZR Pro R Oil Cooler

Take the heat out of the equation

The factory Polaris RZR Pro R relies on a heat exchanger that uses engine coolant to regulate oil temperatures. While sufficient for a casual Sunday cruise, this design quickly reaches its limit during sustained high speeds, heavy loads, or in high-horsepower modified builds. By tethering your oil temperature to your radiator's capacity, you risk overheating both systems simultaneously.

Weistec RZR Pro R Oil Cooler Upgrade

The Weistec Oil Cooler Upgrade solves this by completely decoupling the oil cooling from the factory radiator. By giving your oil its own dedicated, high-efficiency core, we significantly reduce the thermal load on your engine's cooling system, allowing both the oil and the coolant to do their jobs more effectively.

Why it matters:

Whether you are racing in the desert or running a high-boost turbo setup, heat is the enemy of engine longevity. The Weistec system provides the overhead needed to keep your Pro R running at peak performance without the fear of oil thinning or coolant spikes.

Key Features

• Dedicated Thermal Management: Removes the oil cooling load from the factory radiator, effectively increasing the efficiency of your entire cooling system.

• High-Efficiency Core & SPAL Fan: Features a remote-mounted core positioned for maximum airflow, paired with a high-output SPAL fan to ensure cooling even at low speeds or in technical terrain.

• Billet CNC Adapter Plate: The system is anchored by a precision-machined billet plate that bolts directly to the engine, featuring high-flow -10AN ORB fittings for secure, leak-free plumbing.

• Intelligent Thermostatic Control: An integrated thermostat ensures your engine reaches its optimal operating temperature quickly, only activating the fan when extra cooling is required.

• Maximum Protection: Includes a built-in rock guard and a screened fan housing to protect the core from trail debris.

• Directional Airflow: Engineered to pull fresh air from the outside and exhaust it toward the ground, keeping hot air away from the engine's intake.

• Increased Oil Capacity: Adds 1 quart of oil to your system, providing greater thermal mass and improved lubrication stability.

• Complete Bolt-On Kit: Includes all necessary plumbing, hardware, and components for a professional-grade installation.