Wiseco 2379M07900 Pro-Lite Piston Kit Bore Oversize - 2-Stroke 79.00mm 1.00mm

The Wiseco 2379M07900 Pro-Lite Piston Kit is a complete 2-stroke oversize piston kit featuring a 79.00 mm bore diameter (+1.00 mm over stock) machined from 4032 high-silicon aluminum alloy for an outstanding strength-to-weight ratio. Forged in-house by Wiseco in the USA, this kit is engineered for demanding powersports applications including snowmobile engines displacing approximately 685 cc with a 70.00 mm stroke.

Pro-Lite Design Highlights:

• CNC-machined forged construction — optimized cam shape and skirt profile deliver peak horsepower and long service life
• Extra-lightweight piston design for instant throttle response and reduced reciprocating mass
• Computer-engineered skirt profile minimizes cylinder wall friction for efficient power transfer
• Anti-detonation grooves and precision ring land diameter eliminate ring blow-by while maximizing combustion performance
• ArmorGlide skirt coating provides reduced friction, scuff resistance, and quieter operation
• Horizontal slot-pin oiling reduces friction and includes a pressure seal groove for maximum ring seal
• Fits cast iron bore cylinders — oversize bore requires cylinder honing or sleeving

Kit Includes:

• 1x Forged piston (79.00 mm / +1.00 mm oversize)
• 1x Ring Set (#3110LK)
• 1x Wrist Pin (#S631)
• 1x Circlip Set (#CW20)

Built from race-proven designs trusted by top competitors in Supercross, Motocross, GNCC, and snowmobile racing, the Wiseco Pro-Lite delivers a performance upgrade over OEM castings with superior toughness and tighter tolerances for a quiet, reliable rebuild.