Wiseco · New
Wiseco 99-18 Yamaha YZ250 GP Series 2614CS Piston Kit
MPN 808M06640 · Store SKU wis808M06640
Supplier stock checked 11/7/2026, 11:38:30 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
Wiseco's GP Series forged 2-stroke pistons build on the tried-and-true base of the Pro-Lite. Wiseco GP Series 2-stroke pistons incorporate additional performance and durability enhancing features including an Electra-Coated crown, ring groove(s), and pin bores plus ArmorGlide skirt coating, making them perfect for endurance and sustained-RPM 2-stroke applications. From play riders putting in hard hours to consistent competition, GP Series 2-stroke pistons are up to the challenge. GP Series Wiseco pistons are engineered for endurance and high RPM applications. They feature an Electra-Coated crown, ring groove, and pin bore to resist potential wear and heat damage, ensuring long service life and top-end power. The ArmorGlife skirt coating reduces friction, optimizing performance potential. The GP series is ideal for high-performance engines requiring durability and efficiency under extreme conditions. Wiseco 2 Stroke GP Series Piston Kit - Yamaha YZ250 Std, Bore:66.4, Racer's Choice 66.40 mm Bore
Manufacturer fitment & guides
Check 808M06640 against the manufacturer’s application information below.
Part-specific notes
- Not CARB approved. Destination and intended-use restrictions must be checked before sale.
- Emissions acknowledgement required before purchase.
- California Proposition 65: Y
