What does a primary drive spring do?

A primary drive spring is part of your vehicle's clutch system. It helps determine at what engine speed the clutch engages and influences the maximum RPM your engine can reach. Changing it allows you to adjust clutch performance for different riding conditions.

Why is the 5% tolerance important?

A tight tolerance, like the 5% EPI uses, means the spring's performance is very consistent and predictable. This ensures reliable operation and helps you achieve the specific clutch engagement and RPM characteristics you're looking for.

What is the difference between this spring and a stock spring?

This EPI spring is designed to offer a different engagement point and RPM range compared to your stock spring. It allows you to customize your vehicle's clutch performance to better suit your riding style or specific terrain demands.

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EPI 16+ Polaris Ranger XP/Crew/Xpedition/RZR PRO R/S/ RZR XP Turbo/4 Primary Spring Pink

Specifications

Brand: EPI
Part #: PATV8

EPI 16+ Polaris Ranger XP/Crew/Xpedition/RZR PRO R/S/ RZR XP Turbo/4 Primary Spring Pink

Name: EPI 16+ Polaris Ranger XP/Crew/Xpedition/RZR PRO R/S/ RZR XP Turbo/4 Primary Spring Pink
Brand: EPI
SKU: epi-epi-16-polaris-ranger-xp-crew-xpedition-rzr-pro-r-s-rzr-xp-turbo-4-primary-s-t14-838845
Price: 35.89 USD
Availability: BackOrder

$35.89

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Key Features

Fits 2016+ Polaris Ranger XP, Crew, Xpedition, and RZR PRO R, PRO S, and RZR XP Turbo models.
Primary drive spring for clutch system tuning.
Allows fine-tuning of clutch engagement and top RPM.
Manufactured with high-quality materials.
Maintains a strict 5% tolerance for consistent performance.
1.25 in. Load: 160 lbs

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Product Details

This is an EPI Primary Drive Spring, part number PATV8, designed for 2016 and newer Polaris Ranger XP, Crew, Xpedition, and RZR PRO R, PRO S, and RZR XP Turbo models. This spring is a key component in your vehicle's clutch system, helping to adjust how the clutch engages and what your engine's top RPM can be. By swapping this spring, you can better match your clutch's performance to how you ride and the type of terrain you're tackling.

EPI makes these springs with good materials and holds them to a very tight tolerance, just 5%, which is the lowest in the industry. This means you get a consistent and reliable performance every time. The spring has a 1.25-inch load of 160 lbs, a 2.25-inch load of 24 lbs, and a 2.5-inch load of 0 lbs, giving you specific engagement points to work with.