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! ➡

Xceldyne XSSM42001 Exhaust Valve Spring Seats

SKU: 4177850

Xceldyne XSSM42001 Exhaust Valve Spring Seats

Xceldyne
$25.42
$25.42
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.
Precision CNC machined from 8620 case hadened steel. High tolerances ensure seats are flat for longest possible life. Cheaper non-flat seats fracture and eventually disintegrate at rpm which distributes like shrapnel throughout your engine. Pad is parallel to bottom surface for consistent spring pressures. Specially designed for CV4s valve springs. Must be used with PSI Springs. Sold as a set of 2.

Vehicle Fitment:

2001-2009 Yamaha WR250F
2002-2012 Yamaha YZ250F
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