PISTON KIT 87-07 YFZ350 64.00, WOSSNER 8075DA YAMAHA ATV, RD350, RD400

This Wossner forged piston kit with a 64.00mm bore (63.94mm) is designed for Yamaha YFZ350 Banshee (1987–2007), RD350 LC – YPVS (1980–1987), RD350 AC (1950–2014), and RZ350 (1982–1990). Manufactured in Germany, it offers increased durability and optimised thermal management. Its elliptical design promotes even load distribution under heat expansion, minimising the risk of piston collapse.

Features

• Forged construction for high strength and long-term durability

• Engineered for efficient heat transfer from combustion to cylinder walls

• Elliptical profile provides uniform pressure distribution under expansion

• Made in Germany

Specifications

• Bore size: 64.00mm (63.94mm)

• Display volume: 347 cm³

• Stroke: 54.00 mm

• Clearance: 0.06 mm

• Compression height: 36.00 mm

• Theoretical weight: Not specified

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

Cross-Reference OEM Part Numbers

• Piston: 8075DA

• Lock: CW16

• Pin: WP027

• Ring Set: RSB6400 x 2

Vehicle Fitments

• Yamaha YFZ350 Banshee 1987–2007

• Yamaha RD350 LC – YPVS 1980–1987

• Yamaha RD350 AC 1950–2014

• Yamaha RZ350 1982–1990

• Yamaha RD350 1973

• Yamaha RD350 1974