30MM

.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

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

ONLY WORKS IN STM CLUTCHES  Sold in a per arm set. 1 pin and bushing set per arm is needed. Includes: 2 -  1001317 inner bushings for .570 wide weights .048 shoulder bushing 2 -  1001316 outer bushings for .125...

This compression tool will allow you to change weights in your clutch without removing it from the crank. Simply remove the belt and clutch bolt, screw in the thread rod with the plastic cup and tighten the nut to collapse the sheaves.  5/8-18...

This is the pin, roller and button kit for a snowmobile only STM 3VL primary clutch.   Kit Includes: 6-1001531 Buttons .6880 dia 3-M10 X 30 mm Dowels  3-1001634 Spider Rollers .610 dia. 6-1001544 Spider Roller Bushings

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...

ONLY WORKS IN STM CLUTCHES  Sold in a per arm set. 1 pin and bushing set per arm is needed. Includes: 2 -  1001317 inner bushings for .570 wide weights .048 shoulder bushing 2 -  1001316 outer bushings for .125...

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

2010-2013 Four-stroke Arctic Cat .130 spider shim.

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

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...