2Bros Parts

CRANKSHAFT BEARING & SEAL KIT, ALLBALLS 24-1026 YZ250 76-87

£70.04

4.1 Trustpilot 99.9% positive on eBay

Free UK delivery 2–4 business days

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

1

All Balls Racing crankshaft bearing and seal kit for Yamaha two-stroke models. This kit includes OEM-matched high-speed bearings and EMQ-standard seals. The seals feature garter-spring inner lips with a rubber-covered outer diameter for optimal sealing. This comprehensive kit contains all the components required for a complete crankshaft rebuild. Kit includes (2) Engine Bearings (6306 C3 KOYO), (1) Seal (34-1020), (1) Seal (34-1033), and (1) O-Ring. Cross-reference numbers: Bearing 93306-20627-00-00, Oil Seal (38W) 93103-30150-00, Oil Seal 93103-40091-00-00. Part Number: 24-1026.

Specifications
SKU
56-326
Brand
All Balls Racing
Availability
In Stock (3)

Fitments (29)

MakeModelYear
YAMAHADT 2501977
YAMAHADT 2501978
YAMAHADT 2501979
YAMAHAIT 2501977
YAMAHAIT 2501978
YAMAHAIT 2501979
YAMAHAIT 2501980
YAMAHAIT 2501981
YAMAHAIT 2501982
YAMAHAIT 2501983
YAMAHAMX 2501975
YAMAHATY 2501974
YAMAHATY 2501975
YAMAHATY 2501976
YAMAHATY 2501977
YAMAHATY 3501985
YAMAHATY 3501986
YAMAHAYZ 2501976
YAMAHAYZ 2501977
YAMAHAYZ 2501978
YAMAHAYZ 2501979
YAMAHAYZ 2501980
YAMAHAYZ 2501981
YAMAHAYZ 2501982
YAMAHAYZ 2501983
YAMAHAYZ 2501984
YAMAHAYZ 2501985
YAMAHAYZ 2501986
YAMAHAYZ 2501987
General Product Group
Crankshafts & Parts
General Product Type
Crankshaft Bearings, Seals & Kits
Variant Id
250726
Delivery2–4 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

All Balls Racing Crankshaft Bearing and Seal Kit

Restore optimal performance and durability to your motorcycle's crankshaft with this comprehensive bearing and seal kit. Engineered to meet high-quality standards, this kit provides everything needed for a complete crankshaft rebuild. It features OEM-matched high-speed bearings and EMQ-standard seals specifically designed for reliable operation under demanding conditions.

The seals in this kit are crafted with precision, incorporating garter-spring inner lips for superior sealing capability and a rubber-covered outer diameter to ensure a snug fit and prevent leaks. This kit ensures you have all the necessary components for a professional crankshaft overhaul.

Key Features:

  • Includes OEM-matched high-speed bearings for consistent performance.
  • Features EMQ-standard seals with garter-spring inner lips for enhanced sealing.
  • Rubber-covered outer diameter on seals promotes optimal fit and leak prevention.
  • Provides all essential components for a complete crankshaft rebuild.

Kit Contents:

  • Two (2) Engine Bearings: Identified as 6306 C3 KOYO.
  • One (1) Seal: Part number 34-1020.
  • One (1) Seal: Part number 34-1033.
  • One (1) O-Ring.

Cross-Reference Information:

  • Equivalent Bearing Number: 93306-20627-00-00
  • Equivalent Oil Seal (38W) Number: 93103-30150-00
  • Equivalent Oil Seal Number: 93103-40091-00-00
Before you buy

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.

Apply for Trade
1