Piston Kit 06-11 YFM700 Hc 103, Wossner 8673D100 Raptor

Piston Kit 06-11 YFM700 Hc 103, Wossner 8673D100 Raptor. Find the product specifications and compatibility information below.

Product details

• Product: Piston Kit 06-11 YFM700 Hc 103, Wossner 8673D100 Raptor
• Part number: 56-W4903+100.WO
• Brand: Wossner
• The Wossner 8673D100 forged piston kit features a 103.00mm bore and is designed for high-compression applications in Yamaha YFM700 Raptor ATVs from 2006 to 2016. Precision-engineered in Germany, this piston enhances strength, heat dissipation, and durability, while its elliptical shape ensures even load distribution and resistance to collapse under thermal expansion.
• Forged high-compression piston for increased performance and strength
• Designed for effective heat transfer from combustion chamber to cylinder walls
• Elliptical design provides uniform bearing surface under heat expansion
• Reduces localized pressure and prevents piston collapse
• Manufactured in Germany
• Bore: 103.00 mm
• Actual Bore Diameter: 102.94 mm
• Display: 686 cm³
• Hub Stroke: 84.00 mm
• Clearance: 0.06 mm
• Compression Height: 27.50 mm
• Dome Volume: +7.10 cm³
• Wossner Compression Ratio: 11.00:1
• OEM Compression Ratio: 9.20:1
• Theoretical Weight: Not specified
• Cross-Reference OEM Part Numbers
• Piston: 8673D100
• Lock: CW23
• Pin: WP024
• Ring Set: 1030XSU
• Rod: P4031
• Part No.: 56-W4903+100.WO
• Vehicle Fitments
• Yamaha YFM700 Raptor 2006–2016

Compatibility

No separate vehicle-fitment table record was supplied for this part. Check any application details, sizes and specifications above 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