2019

STM Torsion spring cover option. Allows the use of a torsion spring with the option of 7 spring load adjustments with one spring. No drilling or modifications to the STM Secondary is needed. Does not come with helix or spring.    ...

Airline tubing for the STM Pneumatic Primary LockUp clutch  Sold in 10 foot sections   

Can only be used with STM Polaris Rage 6 & 8 primaries with part# 1001000.

This is a replacement seal ONLY for Polaris RZR XP-Turbo clutch housing spacer kit.

Set of 3 rollers.

Cylinder Mount for the STM Pneumatic Primary Lock Up clutch   

8 arm snowmobile screw-on spider. Comes complete with rollers, buttons and 1st stage arms. 

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

Plunger bearing spacer for all Pneumatic Lockup clutches.

Adjustment nut.

Primary bolt washer for STM clutch support brace for 1/2" and 14mm bolts 

Screw-on HD spider shim .03 thick. Fits STM 30, 33 and 35mm primary clutch with 1.875" dia post   Old part number - 25-30-35-HD-SO-03