Wiseco · New
Wiseco 2020 Yamaha YZ450F 131 CR Piston kit
MPN 40254M09700 · Store SKU wis40254M09700
Supplier stock checked 11/7/2026, 4:07:57 PM 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
Unlock peak performance with Wiseco dirt bike piston kits. Our dirt bike kits include lightweight, forged dirt bike pistons designed to withstand high RPMs and extreme conditions, ensuring consistent performance and longevity. Along with the piston, you'll find dirt bike piston rings, wrist pins, and circlips, all precision-engineered for a perfect fit and optimal combustion efficiency. Wiseco dirt bike piston kits are the choice of champions, offering a tangible upgrade in reliability and power delivery for serious riders. The Wiseco team has remained at the forefront of powersports performance through every era and evolution, including the development of high-performance pistons. Today, Wiseco's forged pistons are designed for each specific engine application and built to the tightest tolerances for the ultimate combination of performance and strength. Proven at every level of riding, Wisecopistons are ready to deliver the power and reliability you're looking for. Wiseco Piston Kit, 97.00 MM Bore, 13:1 CR 2020 Yamaha YZ450F 13:1 CR
Manufacturer fitment & guides
Check 40254M09700 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
