JE Pistons 300267 Forged Piston Kit 88mm Bore 13.6:1 Compression 349cc

The JE Pistons 300267 is a complete forged piston kit featuring an 88.00mm bore and 13.6:1 compression ratio for 349cc single-cylinder engines. Machined from 2618 T6 high-tensile forged aluminum, this kit is engineered and manufactured 100% in the USA for extreme performance and professional competition applications.

JE Pistons brings over 75 years of racing expertise to this powersports piston kit, designing each component specifically for the target engine and riding application to deliver the ideal balance of durability and peak performance.

Key Features:

• Forged from 2618 T6 high-tensile aluminum for superior strength in high-demand applications
• Forged Side Relief (FSR) skirt style for reduced friction and improved durability
• Smooth radius dome and dish design requires no deburring or additional preparation
• Radiused valve reliefs for optimized flow and clearance
• Precision CNC machined ring grooves for consistent ring seal and performance
• Machined oil drain back holes engineered for precise oil control
• Factory honed pin bores for exact wrist pin fitment
• Engineered and manufactured 100% in the USA

Kit Includes:

• 1x Forged piston (sold per cylinder)
• JE Premium wrist pin (PN: 708-1750-14-PTC)
• Wire lock / circlip (PN: 708-050-MW)
• JE Pro Seal premium piston rings (PN: YD8800, 1.0-0.00-2.0)

With a proven track record from the motocross track to off-road trails, JE Pistons 300267 delivers the performance and reliability demanded by serious riders and professional competitors alike.