2023

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, ...

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...

.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

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...

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...

 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...

PLEASE WATCH VIDEO BELOW IF YOU NEED HELP WITH OPTIONS!  Click here to order parts from a clickable parts breakdown -#2001115! 

Four arm screw-on HD spider complete with rollers and buttons.  Works in STM Rage 4 HD primary 8-3/4" diameter or larger. Rebuild kit available: #1001651

Our billet cover is a rigid design made from 6061 aircraft aluminum. This design captures the towers of the movable sheave and helps stop them from spreading.  Our billet cover also allows the use of...

Single-stage six arm snowmobile screw-on HD spider complete with rollers and buttons. For STM single stage Rage 6 HD primary 8-3/4" diameter or larger.

The is a clutch cover screw set for the STM single stage Rage 6 primary clutch.  Torque to 125 in/lbs. Includes: 12 - 1/4-20x1" HHFS

ATV spider shim .060.   supercedes or replaces C166597.