Wiseco · New
Wiseco Racers Elite 2022 Yamaha YZ125 Piston Kit
MPN RE931M05400 · Store SKU wisRE931M05400
Supplier stock checked 11/7/2026, 9:45:42 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 Racer Elite series forged 2-stroke pistons deliver industry-first 2-stroke piston design and technology to perform in even the most serious racing conditions. These are the first 2-stroke pistons to be forged from 2000 series alloy, providing even greater tensile strength. ArmorPlating surface treatment on the crown, in the ring groove(s), and in the pin bores protects from harmful operating conditions, while Wiseco's proprietary ArmorFit skirt coating conforms to the cylinder bore for optimized fitment and performance. For the serious 2-stroke rider and racer, Racer Elite is the only choice. Racer Elite 2-stroke pistons are the first to be forged with a 2000-series alloy, providing greater tensile strength for full-race applications. The ArmorPlating surface treatment on the crown, ring groove, and pin bores protects against detonation, friction wear, and ring micro-welding. The ArmorFit skirt coating conforms to the cylinder bore, ensuring optimized fitment and performance. Racer Elite pistons are designed for those who demand the highest performance and reliability in racing conditions. Wiseco 2 Stroke Racer Elite Piston Kit - Yamaha YZ125 54.00 mm Bore
Manufacturer fitment & guides
Check RE931M05400 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
