WOSSNER 95mm FORGED PISTON KIT B, TM MOTO EN450Fi 2011, MX450F 09-11

This Wossner forged piston kit, part number 8820DB, features a 95.01mm bore with an actual piston size of 94.97mm (+0.02mm oversize). It is engineered for TM MX-F450 (2009–2010), MX-Fi450 (2011), and EN-Fi450 (2011) models. Made in Germany, this high-performance four-stroke piston is designed for durability, efficient heat transfer, and even pressure distribution, using an elliptical profile to reduce localized stress.

Features

• Forged construction for strength and performance durability
• Elliptical profile for even expansion and thrust load distribution
• Designed for optimal combustion heat dissipation
• Made in Germany
• Direct OEM replacement
• Easy to install; professional installation recommended if unsure

Specifications

• Bore Size: 95.01mm
• Actual Piston Size: 94.97mm
• Displacement: 250cm³
• 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.