Wiseco 4-Stroke Forged Series - ø78.00mm Piston kitRef : WI00124A / 1122557001

WISECO 4T Forged Series Piston Kit - ø78.00mm (Manufacturer part number: W40074M07800A): forged piston for motocross use, designed for replacement installations or engine modifications. Wiseco, recognized for nearly 50 years, offers here a solid and reliable part intended for the 250 cm3 displacements listed below.

Made from forged aluminum, this piston features a high compression configuration and an "A" oversize (machined diameter Ø 77.950 mm for a nominal bore of 78.00 mm). It provides the mechanical strength and thermal stability expected from a high-performance engine, while adhering to the manufacturing tolerances specific to off-road applications.

• Type: Forged Series, high compression
• Piston diameter: Ø 77.950 mm (nominal Ø 78.00 mm)
• Oversize: Side A
• Material: Forged aluminum
• Delivery: Kit (piston + rings)
• Reference: W40074M07800A

Ideal for enduro/cross riders looking for a robust part to withstand high RPM demands and muddy terrain constraints. Common compatibilities: KTM 250 EXC‑F SIX DAYS (2023), HUSQVARNA FE 250 (2023), GAS GAS EC 250 F (2023).