MPN: NA-50001 POLARIS TRAIL BOSS 350L 2X4 TRAIL BOSS 350L 4X4 1990-1993
MPN: NA-50000-6 POLARIS BIG BOSS 250 6X6 TRAIL BOSS 250 2X4 TRAIL BOSS 250 4X4 BIG BOSS 250 4X6 TRAIL BOSS 250R/ES TRAIL BLAZER 250 XPLORER 250 4X4 1985-2006
MPN: NA-50000-4 POLARIS BIG BOSS 250 6X6 TRAIL BOSS 250 2X4 TRAIL BOSS 250 4X4 BIG BOSS 250 4X6 TRAIL BOSS 250R/ES TRAIL BLAZER 250 XPLORER 250 4X4 1985-2006
MPN: NA-50000-2 POLARIS BIG BOSS 250 6X6 TRAIL BOSS 250 2X4 TRAIL BOSS 250 4X4 BIG BOSS 250 4X6 TRAIL BOSS 250R/ES TRAIL BLAZER 250 XPLORER 250 4X4 1985-2006
MPN: NA-50000 POLARIS BIG BOSS 250 6X6 TRAIL BOSS 250 2X4 TRAIL BOSS 250 4X4 BIG BOSS 250 4X6 TRAIL BOSS 250R/ES TRAIL BLAZER 250 XPLORER 250 4X4 1985-2006
MPN: NA-40080-2 YAMAHA YFM80G GRIZZLY YFM80R RAPTOR YFM80 BADGER 1985-2008
MPN: NA-40080 YAMAHA YFM80G GRIZZLY YFM80R RAPTOR YFM80 BADGER 1985-2008
![PISTON KIT HYPERDRYVE 103.97/+1.00 11:1 Yamaha YFM700K Kodiak [IRS] YFM700KP Kodiak EPS [IRS] YFM700KPS Kodiak EPS SE [IRS] YXE700 Wolverine R-Spec YXE700 Wolverine R-Spec EPS YFM700G Grizzly Fi 4WD [IRS] YFM700F Grizzly Fi 4WD EPS [IRS] YFM700F Grizzly Fi 4WD EPS SE [IRS] YXE700 Wolverine R-Spec EPS SE YXE700 Wolverine EPS YFM700F Grizzly Fi 4WD EPS LE [IRS] YXE850 Wolverine X2 R-Spec YXE850 Wolverine X2 R-Spec SE YXE850 Wolverine X2 R-Spec XT-R 2016-2020](https://omxsports.com/wp-content/uploads/2025/08/namura_187_400254_1-1-430x430.jpg)
MPN: NA-40025-4 YAMAHA YFM700K KODIAK [IRS] YFM700KP KODIAK EPS [IRS] YFM700KPS KODIAK EPS SE [IRS] YXE700 WOLVERINE R-SPEC YXE700 WOLVERINE R-SPEC EPS YFM700G GRIZZLY FI 4WD [IRS] YFM700F GRIZZLY FI 4WD EPS [IRS] YFM700F GRIZZLY FI 4WD EPS SE [IRS] YXE700 WOLVERINE R-SPEC EPS SE YXE700 WOLVERINE EPS YFM700F GRIZZLY FI 4WD EPS LE [IRS] YXE850 WOLVERINE X2 R-SPEC YXE850 WOLVERINE X2 R-SPEC SE YXE850 WOLVERINE X2 R-SPEC XT-R 2016-2020
![PISTON KIT HYPERDRYVE 103.47/+0.50 11:1 Yamaha YFM700K Kodiak [IRS] YFM700KP Kodiak EPS [IRS] YFM700KPS Kodiak EPS SE [IRS] YXE700 Wolverine R-Spec YXE700 Wolverine R-Spec EPS YFM700G Grizzly Fi 4WD [IRS] YFM700F Grizzly Fi 4WD EPS [IRS] YFM700F Grizzly Fi 4WD EPS SE [IRS] YXE700 Wolverine R-Spec EPS SE YXE700 Wolverine EPS YFM700F Grizzly Fi 4WD EPS LE [IRS] YXE850 Wolverine X2 R-Spec YXE850 Wolverine X2 R-Spec SE YXE850 Wolverine X2 R-Spec XT-R 2016-2020](https://omxsports.com/wp-content/uploads/2025/08/namura_187_400252_1-1-430x430.jpg)
MPN: NA-40025-2 YAMAHA YFM700K KODIAK [IRS] YFM700KP KODIAK EPS [IRS] YFM700KPS KODIAK EPS SE [IRS] YXE700 WOLVERINE R-SPEC YXE700 WOLVERINE R-SPEC EPS YFM700G GRIZZLY FI 4WD [IRS] YFM700F GRIZZLY FI 4WD EPS [IRS] YFM700F GRIZZLY FI 4WD EPS SE [IRS] YXE700 WOLVERINE R-SPEC EPS SE YXE700 WOLVERINE EPS YFM700F GRIZZLY FI 4WD EPS LE [IRS] YXE850 WOLVERINE X2 R-SPEC YXE850 WOLVERINE X2 R-SPEC SE YXE850 WOLVERINE X2 R-SPEC XT-R 2016-2020
![PISTON KIT HYPERDRYVE 102.97/STD 11:1 Yamaha YFM700K Kodiak [IRS] YFM700KP Kodiak EPS [IRS] YFM700KPS Kodiak EPS SE [IRS] YXE700 Wolverine R-Spec YXE700 Wolverine R-Spec EPS YFM700G Grizzly Fi 4WD [IRS] YFM700F Grizzly Fi 4WD EPS [IRS] YFM700F Grizzly Fi 4WD EPS SE [IRS] YXE700 Wolverine R-Spec EPS SE YXE700 Wolverine EPS YFM700F Grizzly Fi 4WD EPS LE [IRS] 2016-2018](https://omxsports.com/wp-content/uploads/2025/08/namura_187_40025_1-430x430.gif)
MPN: NA-40025 YAMAHA YFM700K KODIAK [IRS] YFM700KP KODIAK EPS [IRS] YFM700KPS KODIAK EPS SE [IRS] YXE700 WOLVERINE R-SPEC YXE700 WOLVERINE R-SPEC EPS YFM700G GRIZZLY FI 4WD [IRS] YFM700F GRIZZLY FI 4WD EPS [IRS] YFM700F GRIZZLY FI 4WD EPS SE [IRS] YXE700 WOLVERINE R-SPEC EPS SE YXE700 WOLVERINE EPS YFM700F GRIZZLY FI 4WD EPS LE [IRS] 2016-2018
![PISTON KIT 50/+1.00 9.0:1 Yamaha YFM125G Grizzly [SRA] YFA1 Breeze 125 YFM125GH Grizzly Hunter 1989-2013](https://omxsports.com/wp-content/uploads/2025/08/namura_187_400194_1-1-430x430.jpg)
MPN: NA-40019-4 YAMAHA YFM125G GRIZZLY [SRA] YFA1 BREEZE 125 YFM125GH GRIZZLY HUNTER 1989-2013
![PISTON KIT 49.5/+0.50 9.0:1 Yamaha YFM125G Grizzly [SRA] YFA1 Breeze 125 YFM125GH Grizzly Hunter 1989-2013](https://omxsports.com/wp-content/uploads/2025/08/namura_187_400192_1-1-430x430.jpg)
MPN: NA-40019-2 YAMAHA YFM125G GRIZZLY [SRA] YFA1 BREEZE 125 YFM125GH GRIZZLY HUNTER 1989-2013