SPORTSMAN 550

Replacement roller for the STM snowmobile Gen 1 roller covers, Arctic Cat roller covers and the Gen 1 ATV tuner secondary clutches. 

STM Tuner Secondary roller pin (pull dowel)  Sold individually 

Replacement button for the STM Gen 1 ATV tuner secondary and the STM Gen 2 snowmobile tuner secondary. This button replaces the roller.  Sold individually.

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 1001050 and PN 1001082.  FITS  STM Gen 1 and Gen 2 ATV/UTV Tuner...

STM Can-Am tuner movable sheave bushing.

Replacement bushing for PN 1001304 Cover  

Tuner Belt Deflection shim Set Of 6. For 1.181" dia post Fits All Can Am ATV/UTV STM Tuners Gen 1 and Gen 2. WILL NOT WORK ON X3 or Defender  Polaris ATV Gen 2 Tuners  2015 XP900, 2016 Ace 900, 2015-18 Ranger XP900     MH...

STM ATV helix cover to be used with the PS or KSS style springs. Original part#'s were 1001007 and 1001009 and has been updated to fit both HD and non-HD springs. 

STM Tuner Secondary Base Tool will sit on your bench and works great for removing and installing the helix and spring along with changing belt deflection.

Reverse rotation helix for the STM Gen 1 style tuners 

Tuner Retaining Washer for the STM tuner secondary 

PLEASE WATCH THE VIDEO BELOW IF YOU NEED HELP CHOOSING YOUR OPTIONS!  Click here to order parts from a clickable parts breakdown!  All billet construction capable of using compression springs with different spring rate options. We...