JE Pistons 247952 Yamaha YFZ450 High-Performance Piston Kit 98mm Bore 13:1 Compression

The JE Pistons 247952 is a high-performance forged piston kit engineered specifically for Yamaha YFZ450 and YFZ450R ATV engines. This complete single-cylinder kit features a +3mm oversized 98.00mm bore and delivers a high-compression 13.0:1 ratio for maximum power output in racing and performance applications.

Key Features:

• Forged from 2618-T6 high-tensile aluminum for exceptional strength and durability in extreme applications
• Engineered, forged, and machined 100% in the USA with over 75 years of racing experience
• Proprietary Forged Side Relief (FSR) design minimizes friction and reduces weight with optimized skirt width
• Dome/dish features smooth flowing radii requiring no deburring or preparation
• Lightweight design at only 316 grams per piston for reduced reciprocating mass
• Increases displacement to 480cc for enhanced performance

Complete Kit Includes:

• High-quality wrist pin (Part# 787-2050-16-93C)
• Piston circlips (Part# 787-050-MW)
• JE Pro Seal premium piston rings (Part# XS9800)

Specifically designed for professional competition and extreme racing applications, this piston kit delivers the ultimate combination of durability and performance proven with every handful of throttle.