Piston Kit 01-04 YZF250 77.00, 8572DB Wossner 2-RING

Piston Kit 01-04 YZF250 77.00, 8572DB Wossner 2-RING. Find the product specifications and compatibility information below.

Product details

• Product: Piston Kit 01-04 YZF250 77.00, 8572DB Wossner 2-RING
• Part number: 56-W022+00B.WO
• Brand: Wossner
• Wossner forged piston kit designed for superior strength and performance. Engineered for optimal heat transfer from the combustion chamber to cylinder walls. The elliptical design ensures uniform bearing surface under heat expansion, reducing localized pressure and distributing thrust loads evenly to prevent piston collapse. Manufactured in Germany.
• Forged construction for enhanced durability
• Optimized heat transfer for improved performance
• Elliptical design prevents localized pressure and piston collapse
• Pro Series design with a two-ring configuration for enhanced sealing and longevity
• Bore: 76.97 mm
• Piston Size: 77.01 mm
• Displacement: 249 cm³
• Stroke: 53.60 mm
• Clearance: 0.04 mm
• Wossner Compression Ratio: 12.80:1
• OEM Compression Ratio: 12.50:1
• Dome Volume: -4.80 cm³
• Compression Height: 20.50 mm
• Cross-Reference OEM Part Numbers
• Lock: CW16
• Pin: WP059
• Ring Set: 770XAS
• Rod: P4006 / P4005

Vehicle fitment

Applications listed in the supplier fitment data:

• YAMAHA YZF 250cc — 2001–2005
• YAMAHA WR F 250cc — 2005–2013
• YAMAHA YZF 250cc — 2005–2007
• YAMAHA YZF 250cc — 2001–2004
• YAMAHA WRF 250cc — 2001–2004
• TM TM 250cc — 2001–2013

Match your exact make, model, year and specification before ordering.

Why buy from FDY Performance?

FDY Performance is a UK motorcycle and ATV parts specialist. We help riders find parts with clear specifications, vehicle fitment information where available and support before ordering.

Need help choosing the right part?

Contact us with your bike make, model and year, plus the part number shown above, and we can help you check compatibility.

• Call: 07765 534854
• Email: fdy@fdyperformance.com
• Website: www.fdyperformance.com