Wiseco PK1430 4-Stroke Top End Piston Kit 68mm +0.8mm Overbore 12.4:1 CR Honda CRF150R

The Wiseco PK1430 is a 4-Stroke Forged Series Top End Piston Kit featuring a 68.00mm bore (+0.8mm oversize) and 12.4:1 compression ratio, purpose-built for the Honda CRF150R (2007–2009). Piston part number 4924M06800. Engineered, forged, and machined in the USA at Wiseco's facility in Mentor, OH, this kit delivers the performance and durability demanded by serious dirt bike riders.

Kit Includes:

• Forged aluminum piston (68.00mm / +0.8mm oversize)
• High-performance piston rings
• Wrist pin and circlips
• Complete top end gasket kit

Key Features:

• Forged in the USA — dedicated forgings provide superior strength-to-weight ratio using aerospace-grade alloy
• Application-specific design — engineered and built to tight tolerances for the CRF150R engine for optimal fit and performance
• Improved tensile strength — forged material optimizes strength and extends service life compared to cast alternatives
• ArmorGlide™ skirt coating — reduces friction and noise while contributing to increased horsepower
• Race-ready dome finish — smooth edges promote improved combustion flow
• Horizontal slot-pin oiling — reduces friction and provides scuff resistance with a pressure seal groove for maximum ring seal
• Complete rebuild solution — includes a top end gasket kit so you have everything needed to finish the job right the first time

Wiseco's forged pistons offer measurable advantages over cast pistons: condensed, aligned grain structure produces higher mechanical properties and superior resistance to impact and fatigue — critical qualities for high-performance motocross and dirt bike applications. In-house dyno testing and rigorous R&D ensure each kit meets the demands of extreme racing conditions.