EPI Performance Mudder Clutch Kit for 2007 Polaris Sportsman 800 EFI 4×4 (EBS) – 28+ Inch Tires – WE436187
The EPI Performance WE436187 Mudder Clutch Kit is designed to maximize the performance of the 2007 Polaris Sportsman 800 EFI 4×4 Deluxe and Standard models equipped with Engine Braking System (EBS) and oversized 28-inch or larger mud tires. Larger tires increase drivetrain load and often cause reduced acceleration and slower throttle response. This clutch kit recalibrates the ATV’s CVT system to restore lost power and improve overall performance when riding in deep mud and demanding off-road terrain.
Specifically engineered for low elevation riding between 0–3000 feet, the Mudder Clutch Kit enhances low-end torque and pulling power while allowing your ATV to turn larger mud tires more easily in thick, sticky terrain. The kit also delivers quicker clutch backshift, resulting in crisp and responsive throttle control when navigating muddy trails.
In addition to improved performance, the clutch kit helps reduce belt slip and minimize clutch heat buildup. This increases CVT efficiency and helps extend the life of your ATV’s drive belt, ensuring more reliable performance in extreme riding conditions.
Key Features
- Designed for 2007 Polaris Sportsman 800 EFI 4×4 Deluxe and Standard models with EBS
- Optimized for oversized 28 inch and larger mud tires
- Calibrated for low elevation riding between 0–3000 feet
- Helps restore power loss caused by larger tires
- Allows easier turning of oversized tires in deep mud
- Improves low-end torque and pulling power
- Quicker clutch backshift for crisp throttle response
- Reduces belt slip for improved power transfer
- Minimizes clutch heat to help extend CVT belt life
Technical Specifications
- Brand: EPI Performance
- Part Number: WE436187
- Product Type: Mudder Clutch Kit
- Elevation Range: 0–3000 ft
- Tire Compatibility: 28 inch and larger tires
- Vehicle Compatibility: 2007 Polaris Sportsman 800 EFI 4×4 (EBS) Deluxe / Standard
Ideal Applications
- Deep mud riding
- Swamp and muddy trail terrain
- ATV performance upgrades for oversized mud tires
- Extreme off-road riding conditions
The EPI Mudder Clutch Kit is purpose-built for riders who push their Polaris Sportsman through tough mud and challenging terrain. By optimizing clutch calibration for oversized mud tires, the WE436187 kit restores lost power, improves torque, and delivers sharper throttle response for maximum off-road performance.







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