CRANKSHAFT BEARING & SEAL KIT, PROX 23.CBS43051 KX 250/X 2021-2025
4.1 Trustpilot 99.9% positive on eBay
Free UK delivery 2–4 business days
Spread the cost with 
18+, T&Cs apply
Engine Crankshaft Bearing & Seal Kit. Manufactured by leading OEM factories, ProX crankshaft bearings and seals are made to exact OEM specifications, ensuring maximum quality and performance. This kit utilizes respected brands like Koyo, NTN, NOK, and ARS, ensuring high durability. The seals effectively keep oil in and dirt out of the engine. ProX Crankshaft Bearing & Seal Kits offer reliability and carefree driving. The sets contain all necessary parts for crankshaft rebuilding and are compatible with all other ProX or OEM crankshaft related products. These kits are a complete replacement for your dirt bike, ATV, and PWC. Features include manufacturing by leading OEM factories, adherence to exact OEM specifications for maximum performance and durability, a complete bearing and seal kit per application for easy replacement, compatibility with ProX or OEM crankshaft products, and reliable performance through complete replacement. The ProX part number is 23.CBS43051.
- SKU
- 56-3522.PROX
- Brand
- Pro-X Racing
- Availability
- In Stock (1)
Fitments (10)
| Make | Model | Year |
|---|---|---|
| KAWASAKI | KX 250 | 2021 |
| KAWASAKI | KX 250 | 2022 |
| KAWASAKI | KX 250 | 2023 |
| KAWASAKI | KX 250 | 2024 |
| KAWASAKI | KX 250 | 2025 |
| KAWASAKI | KX 250X | 2021 |
| KAWASAKI | KX 250X | 2022 |
| KAWASAKI | KX 250X | 2023 |
| KAWASAKI | KX 250X | 2024 |
| KAWASAKI | KX 250X | 2025 |
- General Product Group
- Crankshafts & Parts
- General Product Type
- Crankshaft Bearings, Seals & Kits
- Variant Id
- 299889
FULL DESCRIPTION
ProX Crankshaft Bearing and Seal Kit
This ProX Crankshaft Bearing and Seal Kit provides essential components for rebuilding your motorcycle's crankshaft. Manufactured at leading OEM factories, primarily in Japan, these parts meet exact OEM specifications to ensure optimal quality and performance.
ProX utilizes respected brands such as Koyo, NTN, NOK, and ARS, which are also used by major OEM manufacturers like Yamaha, Kawasaki, Honda, Suzuki, and KTM. This commitment to quality ensures high durability for the bearings and reliable sealing performance to keep oil in and dirt out of your engine.
Key Features:
- Manufactured by leading OEM factories.
- Made to exact OEM specifications for maximum performance and durability.
- Complete bearing and seal kit per application for easy replacement.
- Compatible for use with all other ProX or OEM crankshaft related products.
- Ensures reliable performance through complete replacement.
- The ideal replacement for professional users.
- Made in Japan.
QUESTIONS? JUST ASK
Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00.
Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.
UK delivery is £4.99, or free on orders over £60. Orders ship within 3 working days, then delivery takes 2–4 business days. Delivery details
Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy
By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.
More answers in our FAQ.
Trade pricing available
Buying parts for your business? Apply for a 2BrosParts trade account.