2018

Primary clutch .125 spring shim spacer 

ATV Primary Fixed Sheave comes with fixed sheave part# 2001107 and post part# 2001134 assembled 

Replacement bushings for the STM Supertip R-series weights and the P-series weights. These bushings get pressed in and reamed after installation. Reamers available as part # RMR in sizes .251, .248, .311, & .317. Purchase separately.

This puller works on the Polaris XP-Turbo STM primary clutches only.  Does not work on STM WCP Primary clutches (WCP clutches use the OEM puller or PCP8 puller on our site) **DOES NOT WORK ON STOCK XP-TURBO PRIMARY CLUTCH** Original part number was...

.075" thick spider shim  Fits  All STM ATV primary's with a Sleeved 2 way Bearing  All STM Primary's with a 1.875" diameter post    MH 3-3-20

Replacement tuner hub retaining insert for the STM RZR XP-Turbo secondary.

Replacement sheave and post assembly for the STM RZR XP-Turbo and RS-1 secondary. Comes with sheave and post assembled together with buttons and rollers installed. 

Available in 45 gram base weight with the ability of adding 20 grams per arm for adjustment.  This design allows the option of adding weight to two different areas on one side of the cam arm to create the shifting characteristics you desire. ...

This is a 3 arm set of cam arms designed for the factory 2016-18 RZR XP-Turbo primary clutch. Replacement bushings STM Part # 2001119. New improved profile that provides a harder up shift than the Original Supertips. We are very pleased with testing...

STM Tuner Secondary Gen 2 finned fixed sheave assembly, complete with finned sheave, post, rollers, pins, pin retaining screws.   Fits 2016-2023 Polaris RZR XP 1000 2016-2022 XP 900   Does not fit XP-Turbo      ...

 Bolt Retaining Washer for the STM tuner secondary        Fits 2016-2020 Polaris RZR XP 1000, XP 900 (not XP-Turbo) Tuner Secondary's 2016-2020 Polaris RZR XP 1000, XP 900 Apex/Z-1 Conversion Secondary's 2016-2023 Arctic Cat...

PLEASE WATCH VIDEO BELOW IF YOU NEED HELP WITH OPTIONS!  Click here to order parts from a clickable parts breakdown -#2001115!  Click here to order parts from a clickable parts breakdown -#2001145! The NEW TRIPLE roller option with...