- Kits contain right and left crankshaft bearings; 2-stroke kits contain outer seals
- Seals designed with a fluorocarbon lip to reduce dry start friction on 2-stroke engines
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 2001-2022 | Yamaha | YZ250 | |
| 2022 | Yamaha | YZ250 Monster Energy Yamaha Racing Edition | |
| 2016-2022 | Yamaha | YZ250X | |