SKU: 51817741281

2020 RZR Pro XP S3 Clutch Kit with AA Heavy Duty Primary by Aftermarket Assassins

Sale price$506.25 Regular price$562.50
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Description

2020 RZR Pro XP S3 Clutch Kit with AA Heavy Duty Primary by Aftermarket AssassinsFree Shipping in the lower 48 States! Fits ONLY 2020 RZR Pro XP Models 2 & 4 Seat **DOES NOT fit 2021 Models as the helix design changed (coming December 2020)** This kit includes our complete heavy duty AA primary clutch. This clutch is the same design found on the 2016 2020 RZR Turbo models with an encapsulated tower design. We found this clutch to hold power better, hold up better (no exploding), and slip the belt less. It simply meets the demands

Free Shipping in the lower 48 States!

  • Fits ONLY 2020 RZR Pro XP Models 2 & 4 Seat  **DOES NOT fit 2021 Models as the helix design changed (coming December 2020)**
  • This kit includes our complete heavy duty AA primary clutch.  This clutch is the same design found on the 2016-2020 RZR Turbo models with an encapsulated tower design.   We found this clutch to hold power better, hold up better (no exploding), and slip the belt less. It simply meets the demands of these high horsepower vehicles, and is proven.  This clutch also holds belt grip better than billet clutches, especially at higher RPM's.
  • Kit Includes: AA Primary Clutch, Primary Bolt, AA magnetic adjustable clutch weights, AA primary spring, weight setup sheet, custom primary spring limiter, AA secondary spring, & our AA custom cut helix
  • Primary clutch does not come assembled.  Simply setup your weights according to our setup chart, then install the weights & Spring.  Otherwise we have the +$25 option to have us assemble the primary clutch for you, as long as you let us know what engine modifications and tire size/type. 
  • The biggest problem with Pro XP clutching is they do not have enough belt grip.  When the first Pro XP models arrived they had a soft secondary spring that slipped the belt under full shift.  They were then fitted with a stiffer secondary spring and now the problem is they rev too high for good belt grip with that spring. Our kit helps combat this with a stiffer secondary spring over factory for even better belt grip, and the right primary weight/spring to get proper RPM.   Our S3 clutch kit includes everything the S2 does, but adds the helix.  The helix adds more aggressive shift to the secondary clutch which gives you big acceleration gains and feels more like your throttle is locked to the rear wheels.
  • Our S3 recoil clutch kits pack a huge punch!  No matter the terrain, they hit hard and just keep pulling for days.  On the trail or at the race you'll notice wicked acceleration and instant clutch response when getting back into the throttle after hammering that corner.  In the dunes you'll see the same benefits, but also have much less bogging when climbing that big dune.  The machine will hold RPM so you can get where you need to go, and get there faster!  Going mudding?  Our mud setup will help turn those tires through the thick and deep with much better RPM and wheel speed that's key to climbing out of that hole. We have a huge amount of CVT knowledge, a great passion for the sport, and have many hours into testing different setups in the real world.  We know you'll be extremely pleased with the performance gain from our clutch kits!   
  • Kits work great with both stock or modified machines
  • Works with tire or paddle sizes 28" to 32"
  • A must have when running larger tires or paddles
  • Wicked throttle response when on & off the throttle
  • More efficient power transferred to the wheels
  • More consistent clutch performance
  • Cooler running belt temps, especially with larger tires or paddles
  • Longer belt and clutch life
  • Easily adjustable if needed
  • Slightly higher engagement which is still very smooth (1800-2000 RPM)
  • Our Recoil clutch weights are easily adjustable with simple magnets.  They have a custom AA profile, the BEST coating on the market(nitrocarburizing) which has increased wear resistance, improved fatigue strength, and added surface lubricity. These clutch weights also offer great performance and the ability to tune for many different applications or modification in the future, all without the need to buy extra parts.  The magnetic weights are the best option to properly place the mass where we need it on the weight for best performance for your application.
  • An initial setup guideline is included which shows the best setups for dunes, mud, or all around trail riding. This also has brief instructions on installing your clutch kit, and other important information.  
  • View our installation video HERE 
  •  DISCLAIMER/SPECIAL NOTES ABOUT THIS CLUTCH:  Primary is tight under the cover and MAY slightly contact the plastic... Making a few wear marks. The primary bolt has a turned down (shortened) head to clear under the cover. This is easier to strip, so use care when tightening. If dissembling the clutch, the 6 spring cover button head allen bolts are also easy to strip if you use the wrong size(or standard), they are a 4mm.   
  • We HIGHLY suggest running our Stryker Belt as we've found it grips much better in the clutch
  • Clutch Puller Note:  You will need the P90X clutch puller to remove your OEM clutch.  The AA clutch uses the standard XPT/XP1000 primary clutch puller. 
  • Special tools needed Compression Tool #1,  P90X Clutch Puller

    jds 1/26/23

    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 51817741281

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    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 10, 2026
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    Amazon Reviews
    New York, US
    ★★★★★ 5
    Excellent quality, comfortable for 8+ hour days
    Color: Grey, Color: Grey
    Since the reviews here were so very helpful to me, I decided to leave my own after using this chair a couple days. To summarize: Overall, I am thrilled with this chair and would recommend! I work remote, in a small apartment and this works well for both space saving and silence when rolling over hardwood floors all day. For more details, read on! It came packaged very nicely, so everything was well protected during shipping. There are no written instructions and to be honest, I didn't even look for them. If you've put one together before, this is pretty standard. The "leather" (not genuine, but feels like it) is thick and seems it will be sturdy for a long time. The padding is exceptional and that's the main reason I needed a new chair, as mine (a 'basic' brand one, IYKYK) only lasted one year before it felt like sitting on a hard plastic seat. The height is adjustable to go up higher than most, so for once I didn't have to raise it all the way to feel comfy. The surprisingly great thing about it is the arms that flip up, so I can push it all the way under my desk. I live in a small apartment, so every bit of space saved is a bonus! Speaking of apartments, the wheels on this are whisper quiet and I'm more than certain the neighbor below me is thrilled to not hear my clunky wheels from the other chair anymore. I was hesitant to pay too much for an office chair, but given the price and the quality, I feel it was an excellent purchase. A few items to note, if you have never put one together before: hand tighten the screws first! Don't put them on full force, until the pieces have been mostly assembled. This will help it not come out lopsided and the holes will be a little easier to line up. Watch the video, it will make the process a little easier (unlike what I did - put the arms on correctly, thought that looked wrong, then put them on backwards and lost my mind LOL). The video will also show how to recline the chair, if you like that (I do). It has a recline that's smooth as butter.
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    Reviewed in the United States on March 11, 2026
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    Julia
    Lake Worth, US
    ★★★★★ 5
    Very comfortable and safe chair
    This executive desk chair is very convenient , for its 90° flip-up armrests can be easily pushed under the desk, perfect for home office. The rubber wheels roll smoothly and quietly on my carpet. It supports up to 275 pounds so it is safe to me . The height-adjustable back with 360° swivel makes me move freely . The curved, padded backrest provides relieve back pressure , also it is very easy to set up.
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    Reviewed in the United States on February 22, 2026
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    Lory Johnson
    Louisville, US
    ★★★★★ 4
    Recommend it for all.
    Color: Grey, Color: Grey
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    Reviewed in the United States on March 17, 2026
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    Daniel Ivan
    New York, US
    ★★★★★ 5
    Great for home office
    Color: Grey, Color: Grey
    This was a great replacement to the chair I use when I work from home, padding is firm and comfortable so I have no issue sitting on it for hours, the arm rest are foldable so is very convenient when my dogs are in co worker duty. Very easy to put together and it feels very firm and stable.
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    Reviewed in the United States on April 15, 2026

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