2025

This is the primary clutch cover only. Made from billet 6061 aluminium, comes with bushing and snap ring installed.  This cover is designed for the STM Rage 3 "Wide" primary. 

Cam arm pin with 2 set screws , 1 set needed per cam arm. Includes:  Qty 1 - 5/16 x 2" Dowel                      2 - 3/8-16 x 3/8 Nylock Set Screw (torque to 50 inch lbs...

Bushings for capture pin style primary clutches with .570 wide cam arms weights  These are sold 2 pieces = enough for 1 cam arm  

Rage 4 Wide Captured Pin Primary Clutch  Completely redesigned STM Rage 4WCP  Primary clutch features a wider, thicker, more durable spider with our new composite spider roller bushings for long life. The new design utilizes a...

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 part#1001020 Replacement Spider Rebuild Kit...

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.

Replaces part #2001226

STM Tuner Secondary roller pin (pull dowel)  Sold individually 

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

ATV spider shim .060.   supercedes or replaces C166597.

These set screws are to adjust the tuck of the primary cam arms in the STM Rage primary clutches with the engagement set screw holes. Works for rage 3, dual stage rage 6, rage 4 and 8 arm clutches that have the cam arm tuck adjustment set...

STM tuner bolt kit, this is a generic bolt kit that will include all fasteners for the STM Tuner Secondary's listed below.. PN 1001034 replaces PN 1001035, PN 1001036, PN 1001471, PN 1001050 and PN 1001082.  FITS  STM Gen 1 and Gen 2 ATV/UTV...