►Arctic cat

Adjustment nut.

All new driven secondary. Click here to order parts from a clickable parts breakdown -#4001061C! Click here to order parts from a clickable parts breakdown -#4001061T! Complete billet redesign utilizing our custom helix with a three roller...

This is a drop-in tested clutch kit that requires no shimming of the stock clutch.  We provide the tuning options of the Supertip cam arms in the kit. Calibrated for the stock boost or 16-18 # boost on pump gas. Works very well with...

35mm HD quick change belt shim .03 thick

Snowmobile Primary HD Fixed Sheave and Post Assembled 8.75"-9.5"

Replacement reverse Buttons sold individual Fits  All STM Gen 2 Snowmobile Tuner secondary's for 2 stroke machines with reverse        MH3-13-20

STM Tuner Secondary bolt retaining washer  Fits    Arctic Cat Procross 800 2012-15 STM Tuner Secondary Gen 1 and Gen 2  Arctic Cat Procross 1100 2012-15 STM Tuner Secondary Gen 1 and Gen...

Weights and spring sold separately.  Uses a PS style spring.  Click here to order parts from a clickable parts breakdown -#1001611!

Steel Washers set of 3 for STM Billet Roller Covers 

STM Gen 2 helix with reverse notch    Fits   All STM Gen 2 Snowmobile Tuner secondary's for 2 stroke machines with reverse        MH3-13-20

35mm Screw-on Belt Shim .03 Thick  -  Set of 6

High performance drive belt used with the 11.0" STM Tuner fits AC 1000, 800HO and 2012-13 ProCross 1100 Turbo with 11.5 centers.