PISTON KIT 00-09 KTM 400 89.00 WOSSNER 8636DA EXC, SX, HC

Wossner forged piston kit designed for KTM 400 LC4 (1998-2001) models. This high-compression Pro Series piston is engineered for superior strength and optimal heat transfer. Featuring an elliptical design, it ensures a uniform bearing surface under heat expansion, reducing localized pressure and preventing piston collapse. Manufactured in Germany.

Features

• High-compression Pro Series piston
• Forged for increased strength and durability
• Optimized heat transfer for efficient combustion chamber performance
• Elliptical design for even thrust load distribution and reduced piston collapse
• Manufactured in Germany

Specifications

• Bore Size: 89.00mm
• Actual Bore Diameter: 88.94mm
• Displacement: 398 cm³
• Stroke: 64.00mm
• Clearance: 0.06mm
• Wossner Compression Ratio: 12.50:1
• OEM Compression Ratio: 11.00:1
• Dome Volume: +12.20 cm³
• Compression Height: 27.50mm
• Lock Part Number: CW20
• Pin Part Number: WP038
• Ring Set Part Number: 890XSY

Cross-Reference OEM Part Numbers

• 57530007000

Vehicle Fitments

• KTM 400 LC4 (1998-2001)

Majority of our listings are for a direct replacement for your original part.

Our parts are made of quality and are designed to meet or exceed the original OEM Standards.

Our products are often a cost effective alternative to genuine OEM Parts.

Please note: the models of bike we state in our listings are for general guidance only. Please make sure this item will fit your bike before purchasing. Also, we cannot guarantee fitment to any non-UK models.