2021

This design allows the option of adding large quantity of weight to three different areas on both sides of the cam arm to create the shifting characteristics you desire. Each arm can be assembled with tungsten and steel washers that can be used in...

STM ATV Tuner Secondary Belt Shims Set of 6. Used to set the belt deflection on the STM tuner secondary's with a 1.5" dia post    Fits   2011-14 Polaris XP900 2013 Polaris 900 Jagged X  2014-24 Polaris XP1000  2024...

Sold individually.  Most applications use three.

Cover screw set for the STM snowmobile and some ATV/UTV Rage 4 and 8 primary clutches.   1/4-20x1 1/4 HHFS set of 8 for non-counter bore cover. Torque to 125 in/lbs.

.030" thick belt shim for stm primary clutches with a 1.875" dia post. Sold individually            MH 3-3-20

Pneumatic clutch button head Hex drive screw 10-32 x 1.5 BHCS

Replacement sheave for the STM  Tuner Secondary clutch   Fits All STM Z1/Apex conversion secondary's Polaris XP-Turbo  Polaris RS1 2019 Polaris Ranger XP-1000 Comes with bushing and bushing retaining clip installed  

Plunger shaft for the STM Pneumatic Primary Lock Up clutch   

Set of 3 rollers.

Includes: 1 pin 1/4"x 1.5"  2 set screws 5/16"x3/8"

This is the updated replacement part for part# 1001015. Made from forged 7075. Comes assembled complete with rollers and buttons.  Rollers and buttons are replaceable.  We also have a grunt (spider) tool that can be purchased separately...

Replacement primary M14 retaining washer and lock washer for STM primary clutches purchased on or after 2/25/2020 for Polaris RS1, XP-turbo and Pro all models