Vertex Pistons · New
Vertex Pistons 05-14 WR 250 F/05-13 YZ 250 F Forged Big Bore Piston Kit
MPN 23129B · Store SKU vep23129B
Supplier stock checked 11/8/2026, 4:37:40 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
Exact fit A, B or C pistons match your cylinder bore perfectly to maximize power and performance, while reducing blow-by and oil consumption. All piston kits include piston, rings, wrist pin and circlips required. Forged Big Bore, Piston Dia: 79.97, Size: +3.00, Compression: 12.5:1
Manufacturer fitment & guides
Check 23129B against the manufacturer’s application information below.
A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.
Part-specific notes
- Not CARB approved. Destination and intended-use restrictions must be checked before sale.
- Emissions acknowledgement required before purchase.