Wiseco Pro-Lite Forged Piston kitRef : WI00084A / 1118907003

The WISECO Pro-Lite forged piston is designed for demanding motocross riders who seek a robust and precise engine part for replacement or tuning. Forged from aluminum, it combines lightness and mechanical strength to withstand the demands of the terrain while remaining true to the specifications of the original displacement. Recommended for optimizing engine performance without promising unproven technical miracles, it fits into engine setups where bore precision and manufacturing quality are essential.

• Manufacturer reference: W804M06640C
• Model: Wiseco Pro-Lite – forged piston
• Diameter: Ø 66.370 mm (manufacturer measurement: Ø 66.36 mm)
• Oversize: +0.02 mm (letter C)
• Material: Forged aluminum
• Compression: Standard
• Category: Motocross

Designed to fit the listed 250 cm3 engines, it is compatible with models such as YAMAHA YZ 250 (2026, 250 cm3), FANTIC XX 250 (2026, 250 cm3), and YAMAHA YZ 250 (CG23, 2023, 250 cm3). Before installation, check the bore, ring gaps, and the condition of the connecting rods/bearings to ensure a smooth operation. A global reference part for decades, this piston is aimed at builds and replacements where reliability, machining precision, and durability are priorities.