New to Powersport Superstore? Try our Year-Make-Model search and find the right parts for your ride by clicking "My Garage" on the upper-right! ➡

Pro-X 26.640019 Countershaft Seal Kit

SKU: 5534818

Pro-X 26.640019 Countershaft Seal Kit

Pro-X
$21.22
$21.22
Sale Sold out
/
Shipping calculated at checkout.
In stock and ready for shipping
This is a pre order item. We will ship it when it comes in stock.
While changing the front sprocket its always recommended to inspect the countershaft oil seal thats right behind the sprocket. Positioned on the high loaded countershaft and always in contact with dirt and water the oil seal can easily start leaking. ProX has developed a wide range of countershaft seal kits. These kits are an easy and complete replacement offering all the needed components and at the same time it is an upgrade kit resulting in improved durability against the.

Vehicle Fitment:

2013-2015 Gas Gas EC 450 F
1998-2000 Yamaha WR400F
2001-2002 Yamaha WR426F
2003-2009 Yamaha WR450F
2011-2018 Yamaha WR450F
1998-1999 Yamaha YZ400F
2003-2018 Yamaha YZ450F
2016-2018 Yamaha YZ450FX
Secure, Trusted, and Encrypted

Protected by industry-leading 256-bit SSL encryption and backed by Shopify’s PCI DSS–compliant infrastructure. Every page, click, and transaction is encrypted and monitored for threats — so you can shop with confidence knowing your data stays protected.

Parts for Every Machine

We stock aftermarket parts, gear and accessories for motorcycles, ATVs, UTVs, snowmobiles, personal watercraft, and even performance cars — all backed by expert support and live inventory.

Real-Time Fitment Accuracy

Search by Year, Make, and Model with confidence. Our proprietary vehicle fitment system ensures you’re only shown what fits — no guesswork, no returns — just parts that fit.

Fast, Trackable Shipping

We ship from over 20 U.S. warehouses — often same or next business day. Every order includes tracking and transparent fulfillment updates from start to finish, all processed through a secure, encrypted checkout.

Quick Links

Ride With Us. Stay Connected.

Follow us for real-time fitment updates, gear drops, and pro tips from the garage. No spam, just parts, tech, and news for riders like you.

Your Garage

Add a Vehicle