Polaris Sportsman 850 Clutch Kit for 27–28 Inch Tires – High Elevation Upgrade
Maintain peak performance at higher altitudes with the EPI Performance Sport Utility Clutch Kit (WE437390), designed for the 2016 Polaris Sportsman 850 and 850 SP. Engineered for 3,000–6,000 feet elevation and optimized for 27–28 inch tires, this clutch kit restores lost power and throttle response caused by both altitude and oversized tire setups.
Whether you’re trail riding, navigating mud and sand, or performing demanding tasks like plowing and hauling, this kit delivers consistent power, improved acceleration, and smoother clutch engagement in high elevation conditions.
Key Features
- Designed for 27–28″ Tires: Compensates for power loss and sluggish performance from oversized tires.
- High Elevation Optimization: Tuned for 3,000–6,000 ft to restore engine efficiency at altitude.
- Improved Acceleration: Enhances low-end torque and midrange power delivery.
- Quick Backshift Response: Provides crisp throttle response and smoother ride experience.
- Reduced Belt Slip: Improves drivetrain efficiency and prolongs belt life.
- Lower Clutch Heat: Minimizes heat buildup during heavy-duty use.
- All-Purpose Performance: Ideal for trails, mud, sand, plowing, and hauling tasks.
Technical Specifications
- Brand: EPI Performance
- Part Number: WE437390
- Fitment: 2016 Polaris Sportsman 850 / 850 SP
- Elevation Range: 3,000–6,000 feet
- Tire Compatibility: 27–28 inch tires
- Kit Type: Sport Utility Clutch Kit
Compatibility & Applications
This clutch kit is a direct-fit upgrade for 2016 Polaris Sportsman 850 and 850 SP models. It is specifically designed for ATVs equipped with 27–28 inch tires operating in high elevation environments, making it ideal for riders experiencing reduced power and throttle response due to altitude and larger tires.
Installation Notes
- Additional tools required: PCP-12 and CCT510
- Professional installation recommended for best performance
- Kit components may vary slightly from images
Why Choose This Clutch Kit?
The EPI Performance High Elevation Clutch Kit is a precision-engineered upgrade that restores your Polaris Sportsman 850’s power and responsiveness in demanding conditions. By improving acceleration, reducing belt slip, and enhancing throttle response, it ensures reliable performance whether you’re working or exploring at higher altitudes.







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