STM Rage Primary Replacement Components

This retaining washer is made to fit the STM primary clutch with a 1/2" diameter retaining bolt.

Only works with style 1st stage cam arms.   Kit includes: 20 - 1 gram washers  4 -  7 gram tungstens  8 -  M5 x8mm BHCS 8 -  M5 x10mm BHCS 

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...

Snowmobile primary clutch quick change sleeve.

ONLY WORKS IN STM CLUTCHES  Sold in a per arm set. 1 pin and bushing set per arm is needed. Includes: 2 -  1001318 inner bushings for .470 wide weights .098 shoulder bushing 2 -  1001316 outer bushings for .125...

Snowmobile primary clutch quick-change sleeve HD. Fits 35mm clutches only.

STM Rage 3 Wide Primary Replacement cover, comes with bushing #1810.590 and retaining clip.

This is a replacement movable sheave for the single stage HD Rage 4 STM primaries. Includes: 1 - movable sheave 1 - bushing installed 1 - bushing retaining clip installed 

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. 

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 the Ski-Doo TRA springs which offers a wider...