PISTON KIT 2014 YZF250 77.0 HC FORGED WOSSNER 8894DA

This Wossner forged piston kit, part number 8893DA, features a standard 77.00mm bore with an actual piston size of 76.95mm. It is designed for Yamaha YZF250 models from 2014 to 2015. Manufactured in Germany, this high-compression piston is built for performance, providing increased compression over OEM specifications. Its elliptical design ensures even load distribution and optimal thermal expansion resistance.

Features

• Forged construction for superior strength and durability
• High compression design for increased engine performance
• Elliptical profile for uniform expansion and balanced thrust load distribution
• Optimized for combustion heat transfer
• Made in Germany
• Direct OEM replacement
• Easy to install; professional installation recommended if unsure

Specifications

• Bore Size: 77.00mm
• Actual Piston Size: 76.95mm
• Displacement: 249cm³
• Stroke: 53.60mm
• Clearance: 0.05mm
• Dome Volume: -3.00cm³
• Wossner Compression Ratio: 13.70:1
• OEM Compression Ratio: 13.50:1
• Compression Height: 20.20mm

Cross-Reference OEM Part Numbers

• 1SM-11631-01-00
• CW16 (Lock)
• WP087 (Pin)
• 770XAS-2 (Ring Set)

Vehicle Fitments

• YZF250 (2014–2015)

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.