RZR 900

 STM Tuner Secondary Gen 2 Fixed sheave assembly Complete with sheave, post, rollers, pins, pin retaining screws.   Fits 2016-2023 Polaris RZR XP 1000 2016-2022 XP 900 Does not fit...

Works only with HD style 1st stage cam arms.    Kit includes : 16 - 1 gram washers  3   - 7 gram tungsten washers  6   - M5 x 8mm BHCS 6   - M5 x 10mm BHCS 

ATV Movable Sheave Gen 2. Comes with bushing and bushing retainer installed.

The 24FDU13 bushing is a replacement bushing for some STM tuner secondary movable sheave applications. 

This is an updated part that replaces part# 1001030 8 Arm ATV screw-on spider comes complete. 

Set of 4 rollers.

Set of 4 rollers.

STM HD compression spring helix cover to be used with the KSS style springs, works with HXATV , HXATVG2 and HXSM2S helix's.  ONLY works on secondary's with a 1.500" diameter post.    Comes complete with  Qty 1 - 2408 Bushing for 1...

 Wildcat Wet Clutch Model STM Primary Replacement cover 

Only works with style 1st stage cam arms.   Kit includes: 20 - 1 gram washers  4 -  7 gram tungstens  8 -  M5 x8mm BHCS 8 -  M5 x10mm BHCS 

STM Tuner Secondary Gen 2 finned fixed sheave assembly, complete with finned sheave, post, rollers, pins, pin retaining screws.   Fits 2016-2023 Polaris RZR XP 1000 2016-2022 XP 900   Does not fit...

STM Rage 4 and 8 ATV cover complete with bushing (Part# 1810.59 with retaining clip).