ProX 23.CBS24001 Crankshaft Bearing & Seal Kit 01-25 Yamaha YZ250F/WR250F

PROX - Crankshaft Bearing Kit - 2001-2022 Yamaha YZ250F / 2015-2021 Yamaha YZ250FX and 2015-2021 WR250F  

When its time to rebuild your 2001-2022 Yamaha YZ250F / YZ250FX. ProX offers OEM quality replacement crank seals and main bearings. ProX uses the same manufactures as the OEM. This insures great fitment and reliability at a great price. 

• Manufactured by the leading OEM factories
• Made to exact OEM specifications to offer maximum performance and durability
• Complete bearing and seal kit per application for easy replacement
• Can be used in combination with all other ProX or OEM crankshaft related products
• Reliable performance because of complete replacement
• The best choice and replacement for every professional user
• For use with OEM or Pro X crankshafts
• Fitment Yamaha 2001-2022 YZ250F / 2015-2021 YZ250FX / 2001-2021 WR250F $$$$

  A worn-out bottom end can lead to catastrophic engine failure when you're pushing for the holeshot. The ProX 23.CBS24001 Crankshaft Bearing and Seal Kit provides the professional-grade OEM Replacement solution riders trust to restore smooth, reliable crank rotation. At Moto-House MX, we know that precision is the difference between a podium finish and a long walk back to the pits.

  Engineered for high-stress racing environments, this kit features premium ball-style bearings and high-pressure seals designed to withstand the extreme heat of modern 4-stroke engines. Whether you are running a stock setup or a Pro-X crankshaft, these components offer the reduced friction and enhanced durability required for maximum Racing Performance and longevity.

  Top Features: ProX Crankshaft Bearing and Seal Kit

  • OEM Precision: Manufactured to exact original equipment specifications for a perfect drop-in fit.
  • Complete Solution: Includes all necessary bearings and seals required for a full crankshaft service.
  • Versatile Compatibility: Designed for seamless integration with either OEM or Pro-X crankshafts.
  • Heavy Duty Build: Engineered specifically for the high-RPM demands of Motocross and Off-Road riding.

  Fitment List

  Year Range	Vehicle Brand	Vehicle Model & Size
  2001-2025	Yamaha	YZ250F
  2001-2025	Yamaha	WR250F
  2015-2025	Yamaha	YZ250FX
  2013-2015	Gas Gas	EC 300F
  2010-2015	Gas Gas	EC 250F

  Frequently Asked Questions

  Does this kit include both sides of the crankshaft?
  Yes, this kit is a complete solution that includes all the necessary bearings and seals for a full crankshaft component replacement.

  Can I use this with an aftermarket crankshaft?
  This kit is specifically designed for use with either an OEM crankshaft or a Pro-X branded crankshaft to ensure proper tolerances.

  Is this a 4-stroke specific kit?
  Yes, this specific kit is engineered for the 4-stroke applications listed in the fitment table, including the YZ250F and WR250F series.

  Upgrade Your Ride and ensure your engine is race-ready with the ProX Crankshaft Bearing and Seal Kit from Moto-House MX.

  Moto-House MX – Choice of Champions – is located in Clermont/Montverde, FL. The best motocross shop in Central Florida.