2Bros Parts

KTM SX / EXC 250 / 300 1997 - 2003 CRANKSHAFT BEARING AND SEAL KIT

£170.02

4.4 Trustpilot 99.9% positive on eBay

Free UK delivery 2–4 business days

Spread the cost with Klarna 18+, T&Cs apply

1

ProX Crankshaft Bearing and Seal Kits are manufactured at leading OEM factories, mainly in Japan, to exact OEM specifications for maximum quality and performance. These kits utilize respected brands like Koyo, NTN, NOK, and ARS. ProX bearings offer high durability, and the seals ensure oil retention and dirt exclusion. These sets contain all necessary parts for crankshaft rebuilding and are compatible with ProX or OEM crankshaft components. They are a reliable replacement for Dirt bike, ATV, and PWC crankshafts.

Specifications
SKU
PROX.23-CBS63001
Brand
Prox
Availability
In Stock (10)
SKU
PROX.23-CBS63001
Brand
Prox
Availability
In Stock (10)
Delivery2–4 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Premium Crankshaft Bearing and Seal Kit by ProX

Ensure your engine runs with maximum reliability and performance with the ProX Crankshaft Bearing and Seal Kit. Engineered to meet or exceed exact OEM specifications, this comprehensive kit provides everything you need for a professional-grade crankshaft rebuild, restoring your engine to factory standards.

Quality Components for Maximum Durability

ProX sources their bearings and seals from world-renowned manufacturers, including Koyo, NTN, NOK, and ARS. These same brands are trusted as original equipment suppliers for major motorcycle manufacturers, ensuring that you receive the highest quality materials available on the market.

Key Features

  • OEM Standards: All bearings and seals are manufactured to exact OEM dimensions and tolerances for a perfect fit and operation.
  • Superior Materials: High-durability bearings designed to withstand the rigorous demands of high-performance engines.
  • Advanced Sealing: Precision-engineered seals effectively retain lubrication while preventing dirt and debris from compromising internal engine components.
  • Complete Solution: The kit includes all necessary components for a full crankshaft bearing and seal replacement, making your maintenance or engine rebuild process straightforward and efficient.
  • Versatile Compatibility: Designed to work seamlessly with both ProX components and original OEM crankshaft parts.

Whether you are performing routine maintenance or a full engine overhaul, this ProX kit delivers the reliability you need for a carefree riding experience. Improve the longevity of your engine and maintain optimal power output with this trusted, high-performance replacement solution.

Before you buy

QUESTIONS? JUST ASK

Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00.

Call or email us with your make, model and year 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.

Apply for Trade
1