STM Primary Replacement Components

Bushing comes with VH131 retaining clip.

This bushing works with the sleeved bearing style ATV clutches and some 35mm snowmobile clutches and STM Primary Assembly Part# 1001603. Includes retaining clip.

ATV Rage 3 and 6 primary cover screw set. Includes:  6 - ¼ x 20 x 3/4 BHCS

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

Sold individually. Clutch requires 2 washers. Works only with bearing 1001675 Required to convert from bearing part# 1001000

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...

Pin roller kit for 3 arm WIDE spider.    This kit includes: 6-1001146  .218 Rebuild Buttons 3- 1001634  .610 Rollers 6- 1001544 Roller Bushings 3- M10x36mm Dowel Pins   Replaces 1001573

The all New Profile design, HB series cam arms offer ideal heel weight built right into the cam arms for optimal torque and belt pinch still incorporating our signature style of adjustability to offer the most tuning capabilities available. Each arm...

Primary clutch .125 spring shim spacer 

This is a Gen 2 style bearing 47mm non sleeved. Only works with sheaves that have previously had 47mm bearing.

Fastner kit comes with the following hardware:Supplied per arm: 2   - 7 gram tungsten inserts  16 - 1 gram washers  4   - O-rings  8  - M3 x 6 long screws  2  - set screws  Supplied per kit...

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 m14 x 1.5 thread rod with the plastic cup and tighten the nut to collapse the sheaves.