ATV/UTV, Side By Side

ATV Primary Fixed Sheave Gen 2 includes fixed sheave part# 4001006 and post part# 4001005 assembled. 

For use with Primary part# 2001078

Bolt Retaining Washer For STM Tuner Secondary's Fits  2011-2015 XP900 Apex/Z-1 STM Conversion Tuner Secondary's    MH3-4-20

Tuner Secondary Bolt retaining washer  Fits STM Apex/Z-1 tuner secondary Polaris RZR 800     MH3-4-20

STM Tuner Bolt Retaining Washer  Fits  2014-15 Polaris XP1000 and Jagged X STM APEX/Z-1 Conversion Tuner Secondary's      MH3-4-20

The spanner tool works with the STM torsional Spring Cover PN1001078    

This is a left-hand thread spider made from 7075 billet aluminum. Comes assembled with rollers and buttons.  Rollers and buttons are replaceable. We also have a grunt tool that can be purchased...

ATV Movable Sheave Gen 2 includes bushing, bushing retainer, 1st stage roller pins and set screw installed. 

Works with HD style helix cap

Replacement sheave for the STM Wildcat X secondary includes sheave part# 4001010 and post part# 4001008 assembled.  

Replacement sheave for the STM Wildcat X secondary tuner includes bushing and bushing retaining clip installed.

Replacement sheave for the 2012 Wildcat secondary. Includes sheave part# 4001031 and post part# 4001032 assembled together.