PISTON 73-81 MAICO 440 83.50 FORGED WOSSNER KIT 8099D150

Wossner 83.50mm (83.42mm) forged piston kit is designed for Maico MC 440 and MD 440 models from 1973 to 1981. Engineered for strength and precision, this piston ensures efficient heat transfer to the cylinder walls, providing uniform expansion and reducing localized pressure. The elliptical design distributes thrust loads evenly, preventing piston collapse. Manufactured in Germany, it meets high-quality standards for reliable performance.

Features

• Wossner forged piston for superior strength and durability
• Optimized heat transfer for improved combustion efficiency
• Elliptical design for uniform bearing surface and reduced localized pressure
• Precision-engineered to prevent piston collapse
• Made in Germany

Specifications

• Bore Size: 83.50mm (83.42mm)
• Oversize: +1.50mm
• Displacement: 438cc
• Stroke: 83.00mm
• Clearance: 0.08mm
• Compression Ratio: 2-stroke
• Compression Height: 41.70mm
• Lock Part Number: CA18
• Pin Part Number: WP039
• Ring Set Part Number: RSC8350
• Theoretical Weight: Not specified

Vehicle Fitments

• Maico MC 440 (1973-1981)
• Maico MD 440 (1973-1981)

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.