RZR XP-900 & 900S

STM Tuner secondary bolt retaining washer Fits  2015 Polaris XP 900 2016 Ace 900 2015-18 Ranger XP900           MH3-16-20

ONLY WORKS IN STM CLUTCHES  Includes: 1 -  5/16 x 2 1/4" shoulder bolt with set screw dimple 1 -  1/4 - 20 Nyloc nut  

ONLY WORKS IN STM CLUTCHES  Includes: 1 -  5/16 x 2 1/4" shoulder bolt 1 -  1/4 - 20 nyloc nut 

STM Tuner Secondary roller pin (pull dowel)  Sold individually 

ONLY WORKS IN STM CLUTCHES  **Updated part # from 29PC** Sold in a per arm set. 1 pin and bushing set per arm is needed. Works with fixed style cam arms that have set screws to fix the arm to the pins-only for .470 wide cam arms with 1/4"...

ONLY WORKS IN STM CLUTCHES  **Updated part # from 28ACS312** Sold in a per arm set. 1 pin and bushing set per arm is needed. Works with non-fixed style cam arms Non-Fixed Pin only works with cam arms that have a bushing.  Updated from...

ONLY WORKS IN STM CLUTCHES  **Updated part # from 28ACS312** Sold in a per arm set. 1 pin and bushing set per arm is needed. Works with fixed style cam arms that have set screws to fix the arm to the pins-only for .470 wide cam arms...

ONLY WORKS IN STM CLUTCHES  **Updated part # from 27ACS312** Sold in a per arm set. 1 pin and bushing set per arm is needed. Works with non-fixed style cam arms only for .570 wide cam arms.  Non-Fixed Pin only works with cam arms that have...

ONLY WORKS IN STM CLUTCHES  **Updated part # from 27ACS312** Sold in a per arm set. 1 pin and bushing set per arm is needed. Works with fixed style cam arms that have set screws to fix the arm to the pins-only for .570 wide cam arms...

Primary clutch .125 spring shim spacer 

Replacement bushings for the STM Supertip R-series weights and the P-series weights. These bushings get pressed in and reamed after installation. Reamers available as part # RMR in sizes .251, .248, .311, & .317. Purchase separately.

.075" thick spider shim  Fits  All STM ATV primary's with a Sleeved 2 way Bearing  All STM Primary's with a 1.875" diameter post    MH 3-3-20