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Photo of Aftermarket Assassins Polaris RZR Turbo & Turbo S Primary & Secondary Stage 4 Clutch Kit (2016-2020) by Aftermarket Assassins - Premium Clutch Kits for UTVs / Side by Sides
Photo of Aftermarket Assassins Polaris RZR Turbo & Turbo S Primary & Secondary Stage 4 Clutch Kit (2016-2020) by Aftermarket Assassins - Premium Clutch Kits for UTVs / Side by Sides
Photo of Aftermarket Assassins Polaris RZR Turbo & Turbo S Primary & Secondary Stage 4 Clutch Kit (2016-2020) by Aftermarket Assassins - Premium Clutch Kits for UTVs / Side by Sides
★★★★★ 5.0  |  Fits: 2016–2020 Polaris RZR XP Turbo & Turbo S (2 & 4 Seat)  •  Primary & Secondary Clutch

Your RZR Turbo Is Leaving Power on the Table — This Kit Fixes That

The Aftermarket Assassins Stage 4 Clutch Kit replaces your stock primary and pairs it with an optimized secondary to unlock the full potential of your turbocharged RZR. Riders report jaw-dropping acceleration, cooler belt temps, and a throttle response that feels like a completely different machine — all with easy adjustability to dial in your exact riding style.

Stage 4
Performance Level
2016–2020
Model Year Fitment
↓ Temps
Reduced Belt Heat
Adjustable
Tune to Your Ride

What's Included

✓ Aftermarket Primary Clutch
High-performance replacement primary
✓ Optimized Secondary Clutch
Paired OEM-compatible secondary
✓ Adjustable Clutch Weights
Fine-tune engagement RPM
✓ Primary & Secondary Springs
Matched for Stage 4 performance
✓ Primary Limiter
Controls max RPM engagement
✓ Custom Helix
Optimized backshift for your terrain
✓ Detailed Installation Instructions
Step-by-step guide included

Why Turbo Riders Pull the Trigger on This Kit

🚀 Maximum Power Transfer
The Stage 4 setup is engineered to put every horsepower your turbo makes to the ground — no slipping, no wasted energy.
🌡️ Cooler Belt Temps
Especially critical if you're running larger tires or paddles — reduced heat means longer belt life and fewer trailside breakdowns.
⚡ Instant Throttle Response
Feel the difference the moment you hit the gas. Crisp, immediate engagement that stock clutching simply can't match.
🎯 Adjustable for Your Setup
Running stock tires or 35s? Trails or dunes? The adjustable weights let you dial in engagement to match your exact build.
🔧 Works Stock or Modified
Whether your RZR Turbo is bone stock or has an exhaust and tune, this kit is designed to work seamlessly with both.
📈 Extended Belt & Clutch Life
Superior engagement consistency reduces wear on both the belt and clutch components — protecting your investment long-term.
🏆 Aftermarket Assassins Engineering
AA is one of the most trusted names in Polaris clutch performance — this kit reflects years of real-world RZR development.
In Stock & Ready To Ship
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Processed & shipped within 2–3 business days
Tracking
Sent when your order ships
Confirmation
Sent immediately after purchase
Although rare, some delays may occur. We'll keep you updated every step of the way.

Stage 4 Kit vs. Stock Clutching

STOCK CLUTCHING
✗ Fixed engagement — no adjustability
✗ High belt temps under load
✗ Sluggish throttle response
✗ Power loss with larger tires
✗ Faster belt & clutch wear
⚡ AA STAGE 4 KIT
✓ Fully adjustable weights & springs
✓ Significantly cooler belt temps
✓ Instant, crisp throttle response
✓ Optimized for big tires & paddles
✓ Extended belt & clutch life

While you're upgrading your clutch system, consider pairing it with the AA Stryker Belt for maximum durability, or grab the Snap Ring Delete Kit to eliminate a common failure point while you're in there. If your clutch needs a full refresh, the Extreme HD Clutch Rebuild Kit is the complete solution.

What Riders Say

★★★★★

"This clutch kit completely transformed my RZR Turbo. The acceleration is insane and the adjustments are a breeze — night and day difference from stock."

— Jake M. | Utah
★★★★★

"No more belt slipping on the dunes. Throttle response is crisp and belt temps dropped noticeably. Worth every penny."

— Travis R. | Nevada
★★★★★

"An absolute must-have for any serious off-roader. Quality is top-notch and installation was straightforward with the included instructions."

— Cody L. | Arizona

Fitment & Compatibility

2016–2020 Polaris RZR XP Turbo — 2 Seat & 4 Seat
2018–2020 Polaris RZR XP Turbo S — 2 Seat & 4 Seat
⚠️ Not Compatible — 2021+ models (different clutch architecture)

Quick Answers

What belt should I run with this kit?
The Aftermarket Assassins Stryker Belt is the recommended pairing — it's engineered to handle the increased engagement forces of the Stage 4 setup.
Do I need special tools for installation?
Yes — a clutch puller is required. Some primary clutches can be tightly fit, so use plenty of grease on the puller tip. The GBoost Clutch Puller is a great option.
Is this compatible with 2021+ models?
No — this kit is specifically designed for 2016–2020 RZR XP Turbo and Turbo S models. The 2021+ platform uses a different clutch architecture.
Will this work if my RZR has an aftermarket exhaust or tune?
Yes — the Stage 4 kit is designed to work with both stock and modified RZR Turbo builds. The adjustable weights let you tune engagement to match your power output.

Learn More

Related RZR Turbo Upgrades

Frequently Bought Together

🔥 Pro Tip: Riders who upgrade their clutch kit almost always grab these at the same time to complete the drivetrain build.

⚡ AA Stryker Belt — The belt built to handle Stage 4 engagement
⚡ GBoost Clutch Puller — Required tool for clutch removal
⚡ Clutch Alignment Tool — RZR XP Turbo — Ensures perfect clutch alignment post-install
⚡ Power Vision 3 Tuner — RZR XP Turbo (2017-2021) — Maximize your Stage 4 gains with a proper tune
⚡ Turbo S Tender Spring Kit — Complete the performance build with a suspension upgrade

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300+ Five-Star Reviews

⚡ Ready to Unlock Your RZR Turbo's Full Potential?

The Stage 4 Clutch Kit is the single biggest performance upgrade you can make to your 2016–2020 RZR Turbo or Turbo S. Better acceleration, cooler belts, longer clutch life — all in one kit.

Also building out your suspension? Check out the Turbo S Tender Spring Kit to complete your build.

Photo of Aftermarket Assassins Polaris RZR Turbo & Turbo S Primary & Secondary Stage 4 Clutch Kit (2016-2020) by Aftermarket Assassins - Premium Clutch Kits for UTVs / Side by Sides
Photo of Aftermarket Assassins Polaris RZR Turbo & Turbo S Primary & Secondary Stage 4 Clutch Kit (2016-2020) by Aftermarket Assassins - Premium Clutch Kits for UTVs / Side by Sides
Photo of Aftermarket Assassins Polaris RZR Turbo & Turbo S Primary & Secondary Stage 4 Clutch Kit (2016-2020) by Aftermarket Assassins - Premium Clutch Kits for UTVs / Side by Sides
Aftermarket Assassins

Aftermarket Assassins Polaris RZR Turbo & Turbo S Primary & Secondary Stage 4 Clutch Kit (2016-2020)

SKU 116-1006
$1,650.00
Shipping calculated at checkout.
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Select Model: 2016 RZR Turbo 2 Seat
  • 2016 RZR Turbo 2 Seat
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  • 2018 - 2021 RZR Turbo S 2 Seat
  • 2019 - 2021 RZR Turbo S 4 Seat
Select Helix Angle: 1024 Performance Angle
  • 1024 Performance Angle
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Tire Size: 29
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