PISTON KIT 04-07 KTM300 72.00, WOSSNER 8219DA FORGED 55430007000

This 72mm bore Wossner piston kit (part number 8219DA) is a standard size forged piston specifically engineered for KTM 300cc two-stroke engines produced between 2004 and 2007. It is designed for optimal combustion efficiency, durability, and heat transfer, making it suitable for high-performance off-road applications.

Features

• Forged piston construction for increased strength and durability

• Engineered to optimise combustion chamber heat transfer

• Elliptical design enhances bearing surface and distributes thrust loads evenly

• Helps prevent piston collapse under heat expansion

• Made in Germany

Specifications

• Bore diameter: 72.00 mm

• Display displacement: 293 cm³

• Stroke: 72.00 mm

• Clearance: 0.06 mm

• Compression ratio: 2-stroke specification (Wossner and OEM)

• Compression height: 38.00 mm

Cross-Reference OEM Part Numbers

• 55430007000

• 09104880

• 858M07200

Included Components

• Piston kit part number: 56-W858.A.WO

• Rings (2x): RSB7200

• Circlip: CW18

• Wrist pin: WP033

• Gasket: D2024-EST

• Connecting rod: P2023

Vehicle Fitments

• KTM EXC 300 2004–2007

• KTM MXC 300 2004–2007

• KTM XC 300 2004–2007

• KTM XC-W 300 2004–2007