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.
Vehicle fitment
- 2022-2024 Polaris RZR Pro R 4 Premium Base
- 2022-2024 Polaris RZR Pro R Premium Base
- 2022-2025 Polaris RZR Pro R 4 Ultimate Base
- 2022-2025 Polaris RZR Pro R Ultimate Base
- 2022 Polaris RZR Pro R 4 Sport Base
- 2022 Polaris RZR Pro R 4 Ultimate Launch Edition Base
- 2022 Polaris RZR Pro R Sport Base
- 2022 Polaris RZR Pro R Ultimate Launch Edition Base
- 2023 Polaris RZR Pro R 4 Troy Lee Designs Edition
- 2023 Polaris RZR Pro R Troy Lee Designs Edition
- 2025 Polaris RZR Pro R 4 Sport Base
- 2025 Polaris RZR Pro R Sport Base
Weistec part number: 01-004-02664-3
All products are shipped out from one of the Signature Autohaus shipping locations. Signature Autohaus drop ships some products and ships direct others. All products are shipped via FedEx, UPS, DHL or another qualified shipping carrier.
Special arrangements may need to be made for international orders and oversize packages.
In the event a product arrives damaged to your location, please follow the steps listed below. All damaged items must be reported to the shipping carrier immediately and you must notify Signature Autohaus within 5 days of receiving your order. If these steps are not followed, your shipment may not be able to be a candidate for a claim.
Complete the Shipping DAMAGE Claim Form by contacting the carrier that delivered your package.
1) Keep the product and its original packaging and box
Make a list of the damaged or lost item(s)
2) Signature Autohaus will contact the shipper once we receive the email info above to schedule a pickup, DO NOT send it back to us
3) Once the product is picked up and inspected by Signature Autohaus and or Supplier, a replacement or credit will be issued.
4) The Shipping Rates shown at time of checkout our dimensional rate only. If your shipment weight is to much then contact us for a shipping quote. If there is an error in the shipping rate quoted we will contact you and let you know of the changes. International orders(Outside the USA) are not automatically processed as we may require additional information from you.
If a product is ordered and not wanted, the UNUSED item can be returned for a 35% restocking fee. Shipping is not refundable in either direction. All items wanting to be return MUST be reported within 30 days of the original invoice date. No items will be returnable after 30 days. All products shipped from the Signature Autohaus warehouse are shipped via FedEx or Freight and require a signature when delivered. Some packages shipped from the manufacturer may or may not require signatures for package release. Fedex, UPS, and DHL have package pick up locations if you are unable to sign for the package. If the package is returned to Signature Autohaus or manufacturer, you will be responsible for the return shipping costs and pay a 35% restocking fee. These fees will be charged to your account on file.
SIGNATURE AUTOHAUS DOES NOT REFUND SHIPPING CHARGES. If you modify, install, or alter the item in any form, we cannot accept it as a return, will not cover any expenses related to the product or installation, and you maybe be required to purchase a replacement.
In the event that the product you ordered is sent either incorrectly or processed wrong by Signature Autohaus, we will arrange for the package to come back to us and ship out a replacement. We will evaluate the situation before we determine the shipment was incorrect.
To return a item back to us, please do the following:
1. Contact our Customer Service Department to receive a RMA number. All packages returned without a Returned Merchandise Authorization number will be refused.
2. Package the item up in original packaging unless deemed unuseable
3. Include the UNUSED parts and any additional information that was included
4. Include a copy of your receipt
5. Write a brief description of the problem with the product
6. If you have a receipt for the return shipping include as well
7. We DO NOT accept any freight collect packages
8. Once we have received the above information we will notify you via email or phone and let you know the status.
