Confirm this item fits
Add your vehicle details to make sure this item fits.
2019-2025 Yamaha YZ250F - Dynamic 15.8:1 High Compression Piston Kit
$299.20
Was $499.95
(40% off)
Want extra peace of mind? Even if a seller doesn't offer returns,
MX Locker gives you the option to make any item returnable with Return Assurance at checkout.
Want extra peace of mind? Even if a seller doesn't offer returns,
MX Locker gives you the option to make any item returnable with Return Assurance at checkout.
MX Locker is 100% committed to ensuring that every sale ends in satisfaction—for both buyer and seller. Your payment is held until the item is delivered and approved. If it's not as described, you'll receive a full refund.
Every transaction is backed by our secure payment system. We hold funds until you confirm the item arrived in the promised condition—so you can shop worry-free.
MX Locker is 100% committed to ensuring that every sale ends in satisfaction—for both buyer and seller. Your payment is held until the item is delivered and approved. If it's not as described, you'll receive a full refund.
Every transaction is backed by our secure payment system. We hold funds until you confirm the item arrived in the promised condition—so you can shop worry-free.
Overview
Description
Dynamic Racing - 15.8:1 High Compression Piston Kit w/Gaskets, Valve Seals and an Oil Filter. We have been privately selling these to a couple teams here in the USA an across the pond for the last 2 years but the latest spec has changed. So, now we are blowing these out to make room for new machines in the shop. Get them before they are gone. Big performance upgrade with this piston. Substantial increase in compression, for race fuel applications only! High recommend using this with our Vortex ECU and custom tuned maps. Pro6, MR12 or equivalent should be used. Includes: -15.8:1 JE Piston (Custom undercrown milling to work with the beefy Carrillo Rod) -DLC Coated Wrist Pin -OEM Rings -C-Clips -OEM Head and Base Gasket -OEM Valve Guide Seals -HF Oil Filter
Compatible with 6 Yamaha vehicle(s)Meet The Seller
Responds within 3 hours.
Ships within 3 business days.
Items match their descriptions.
Need help? We're riders just like you.
By clicking subscribe, I agree to receive exclusive offers & promotions, news & reviews, and personalized tips for buying and selling on MX Locker.
MX Locker © 2025 Accessibility