PISTON KIT 09-11 TM450F 95.00 FORGED WOSSNER 8820DA

This Wossner forged piston kit, part number 8820DA, features a standard 94.96mm bore (designated as 95mm) and is designed for TM MX-F450 (2009–2010), MX-Fi450 (2011), and EN-Fi450 (2011) models. Manufactured in Germany, the piston is engineered for high-performance four-stroke engines, offering excellent durability, thermal efficiency, and uniform load distribution via its elliptical profile.

Features

• Forged construction for high strength and durability
• Elliptical design for uniform expansion and load distribution
• Optimized for efficient combustion heat transfer
• Made in Germany
• Direct OEM replacement
• Easy to install; professional installation recommended if unsure

Specifications

• Bore Size: 94.96mm (Standard)
• Displacement: 449cm³
• Stroke: 63.40mm
• Clearance: 0.04mm
• Dome Volume: -6.40cm³
• Compression Ratio: 13.00:1 (OEM)
• Compression Height: 21.00mm

Cross-Reference OEM Part Numbers

• CW19 (Lock)
• WP037 (Pin)
• 950ADS-2 (Ring Set)

Vehicle Fitments

• TM MX-F450 (2009–2010)
• TM MX-Fi450 (2011)
• TM EN-Fi450 (2011)

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.