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UltraShift XP
UltraShift XP
UltraShift XP

Vendor:KWI

UltraShift XP

$2,800.00
About this product

The KWI UltraShift XP is a fully billet primary clutch engineered specifically for Polaris RZR XP platforms — built from aerospace-grade materials and loaded with KWI Groovix Cooling Technology to eliminate belt failures, recover lost horsepower, and keep belt temperatures under control in the most demanding riding conditions. If overheated belts, inconsistent power delivery, and premature clutch wear are holding your XP back, the UltraShift XP is the solution.

Groovix Cooling Technology actively draws airflow through the clutch under load, managing heat at the source before it reaches the belt — delivering longer belt life, more consistent clutch performance, and the durability to handle extreme conditions that factory clutches can't withstand. Billet construction throughout means superior strength, precision, and longevity far beyond the OEM primary.

The UltraShift XP is compatible with the Gates 49R4313 Belt (sold separately — recommended). Additional KWI Weights are available as a single, pair, or set of three depending on your power level, and Primary Springs are available in 2,800 RPM and 3,300 RPM engagement options for further tuning flexibility (all sold separately).

Compatible with 2020+ RZR Pro XP and Pro XP4, 2021+ RZR Turbo S and Turbo S4, and 2022+ RZR Turbo R and Turbo R4

Why it matters

Belt failures, lost horsepower, and overheated belts all trace back to a primary clutch that can't manage heat — the UltraShift XP was built to fix that.

Groovix cooling, aerospace-grade billet construction, and a design engineered specifically for the XP platform combine to give your Polaris the primary clutch it should have come with — running cooler, performing harder, and lasting longer than anything the factory put on it.

What's Included

What's Included

KWI UltraShift XP Primary
ClutchSet of 3 Weights
Standard 1800 RPM Engagement Primary Spring
High-Strength ARP Stud, Nut, Washer, and Lubricant
White Secondary Spring
KWI Billet Cover Spacer Kit
Additional Magnets
Crankshaft Thread Cleaning Brush
Install

How to install it

Download the printable install guide, or watch the video walkthrough.

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Product Info

The KWI UltraShift XP is a fully billet primary clutch engineered specifically for Polaris RZR XP platforms — built from aerospace-grade materials and loaded with KWI Groovix Cooling Technology to eliminate belt failures, recover lost horsepower, and keep belt temperatures under control in the most demanding riding conditions. If overheated belts, inconsistent power delivery, and premature clutch wear are holding your XP back, the UltraShift XP is the solution.

Groovix Cooling Technology actively draws airflow through the clutch under load, managing heat at the source before it reaches the belt — delivering longer belt life, more consistent clutch performance, and the durability to handle extreme conditions that factory clutches can't withstand. Billet construction throughout means superior strength, precision, and longevity far beyond the OEM primary.

The UltraShift XP is compatible with the Gates 49R4313 Belt (sold separately — recommended). Additional KWI Weights are available as a single, pair, or set of three depending on your power level, and Primary Springs are available in 2,800 RPM and 3,300 RPM engagement options for further tuning flexibility (all sold separately).

Compatible with 2020+ RZR Pro XP and Pro XP4, 2021+ RZR Turbo S and Turbo S4, and 2022+ RZR Turbo R and Turbo R4