Piston Kit 96-09 TTR250 73.00, Forgedwossner 8646DA, 4GY-11631-00-C0

Piston Kit 96-09 TTR250 73.00, Forgedwossner 8646DA, 4GY-11631-00-C0. Find the product specifications and compatibility information below.

Product details

• Product: Piston Kit 96-09 TTR250 73.00, Forgedwossner 8646DA, 4GY-11631-00-C0
• Part number: 56-W198+00A.WO
• Brand: Wossner
• Wossner forged piston kit designed for durability and high performance. Engineered for optimal heat transfer to cylinder walls, ensuring efficient combustion. The elliptical design provides a uniform bearing surface under heat expansion, reducing localized pressure and evenly distributing thrust loads to prevent piston collapse. Manufactured in Germany to high-quality standards.
• Forged piston for enhanced strength and durability
• Optimized heat transfer for efficient combustion
• Elliptical design to prevent piston collapse
• Manufactured in Germany
• Bore Size: 73.00mm
• Actual Bore Diameter: 72.95mm
• Displacement: 124 cm³
• Stroke: 59.60mm
• Clearance: 0.05mm
• Wossner Compression Ratio: OEM
• OEM Compression Ratio: 10.20:1
• Dome Volume: +1.40 cm³
• Compression Height: 23.60mm
• Theoretical Weight: Not specified
• Included Components
• Lock Part Number: CW18
• Pin Part Number: WP031
• Ring Set Part Number: 730XDS
• Cross-Reference OEM Part Numbers
• 4GY-11631-00-C0

Vehicle fitment

Applications listed in the supplier fitment data:

• YAMAHA TT R 250cc — 1996–2006
• YAMAHA TT R 250cc — 1996–2009

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