EPI Performance Low Elev. Sand Dune Clutch Kit for 2017-25 Polaris RZR S/ Trail S (EBS) – Stock Tires – WE437421

2017–2025 Polaris RZR S / Trail S Sand Dune Clutch Kit (0–3000 ft)

The EPI Performance WE437421 Low Elevation Sand Dune Clutch Kit is engineered specifically for 2017–2025 Polaris RZR S and RZR Trail S (EBS) models running stock tires. Designed and tested for aggressive dune environments at elevations between 0–3000 feet, this clutch kit recalibrates your CVT system to maintain peak power RPM in deep sand—while retaining the factory Engine Braking System (EBS).

Soft sand creates heavy drivetrain load and can cause belt slip, excess clutch heat, and sluggish throttle response. This dune-specific clutch kit optimizes engagement and shift characteristics to keep your RZR in its ideal power band during hill climbs and hard acceleration, delivering stronger torque and improved control in loose terrain.

Key Features

• Designed for Stock Tires: Optimized for factory tire size and drivetrain configuration.
• Low Elevation Calibration (0–3000 ft): Tuned for maximum dune performance at lower altitudes.
• Holds Peak Power RPM: Maintains optimal engine speed when climbing dunes and riding deep sand.
• Improved Low-End Torque: Stronger launch and better pulling power in soft terrain.
• Quicker Backshift: Provides crisp throttle response during rapid acceleration changes.
• Retains Factory EBS: Designed to keep Engine Braking System functionality intact.
• Reduces Belt Slip & Clutch Heat: Enhances belt life and improves overall CVT durability.

Technical Specifications

• Brand: EPI Performance
• Part Number: WE437421
• Vehicle Fitment: 2017–2025 Polaris RZR S / RZR Trail S (EBS Models)
• Tire Compatibility: Stock tires
• Elevation Range: 0–3000 feet
• Application: Sand dune riding & hill climbing
• Additional Tools Required: PCP-8 and CCT520 clutch compression tool
• Note: Clutch kit components may vary from product photo

Compatibility & Application

This clutch kit is designed exclusively for Polaris RZR S and RZR Trail S EBS models from 2017–2025 operating at low elevation. It is purpose-built for dune riders who want improved torque delivery, consistent RPM control, and enhanced belt durability—without sacrificing factory engine braking functionality.

Why Choose This Sand Dune Clutch Kit?

Factory clutch calibration is designed for general-purpose riding, not deep sand conditions. This professionally engineered dune clutch kit adjusts shift timing and engagement characteristics to better match loose terrain, allowing your RZR to climb harder, accelerate quicker, and operate cooler under load.

For riders who demand stronger dune performance while maintaining EBS capability, this clutch kit delivers the perfect balance of power, responsiveness, and drivetrain reliability.