Wiseco 4630M08000 Forged Piston Kit Bore CR Oversize - 80mm 11 1 2mm KLX300

The Wiseco 4630M08000 is a high-performance forged piston kit designed for the Kawasaki KLX300R. This kit features an 80.00mm actual bore diameter (+2.00mm oversize over the standard 78.00mm bore) with an 11:1 compression ratio and a 61.2mm stroke, making it an ideal solution for engines that have been bored out for increased displacement and performance.

Engineered, forged, and machined in the USA at Wiseco's facility in Mentor, OH, this piston is built to the tightest tolerances for the ultimate combination of strength and reliability. The high-silicon aluminum alloy forging delivers improved tensile strength and an optimized strength-to-weight ratio compared to cast pistons, ensuring long service life under demanding riding conditions.

Key Features:

• Forged high-silicon aluminum alloy construction for maximum strength and durability
• 80.00mm actual bore — 2.00mm oversize (standard bore: 78.00mm)
• 11:1 compression ratio for improved power output
• 61.2mm stroke
• Optimized piston skirt design for improved horsepower and torque
• Engineered, forged, and machined in the USA (Mentor, OH)
• Dedicated forging designed specifically for the KLX300R engine

Kit Includes:

• Forged piston
• Piston rings
• Wrist pin
• Circlips

Note: This is an oversize piston. Cylinder boring or sleeving is required prior to installation. Always verify bore size before ordering.