PISTON KIT YFZ450/R/X 95.00 B, WOSSNER 8601DB FORGED KIT

The Wossner 8601DB forged piston kit features a 95.01mm bore and is compatible with Yamaha YFZ450 models from 2004 to 2013. Designed and manufactured in Germany, this piston delivers durability and consistent performance through superior heat transfer and an elliptical profile that minimizes localized pressure during thermal expansion.

Features

• Forged piston construction for strength and reliability
• Designed for efficient heat dissipation from combustion chamber to cylinder walls
• Elliptical shape promotes uniform bearing surface under thermal expansion
• Reduces risk of piston collapse and uneven pressure
• Manufactured in Germany

Specifications

• Bore: 95.01 mm
• Actual Bore Diameter: 94.96 mm
• Display: 449 cm³
• Hub Stroke: 62.00 mm
• Clearance: 0.05 mm
• Compression Height: 25.00 mm
• Dome Volume: -7.40 cm³
• Compression Ratio: OEM (11.90:1)
• Theoretical Weight: Not specified

Cross-Reference OEM Part Numbers

• Piston: 8601DB
• Lock: CW20
• Pin: WP038
• Ring Set: 950XSY
• Rod: P4029
• Part No.: 56-W4865+00B.WO

Vehicle Fitments

• Yamaha YFZ450 2004–2013

Dispatch Times

Local Stock: Dispatches in < 24 hours

Parts showing as available at our Warehouse in Gorey ship the same business day if ordered before 1pm. 

Supplier Stock: Dispatches in 2-4 Days

Parts showing as available at our Supplier Warehouse are ordered from our supplier and delivered to us before we can dispatch. More info is available on this page under "Stock Availability".

OEM Special Order: Dispatches in 3-10 Days

This website does not have access to live stock levels from our OEM Suppliers. In most cases the parts will be available but in the case of backordered parts we will notify you. We receive parts from Yamaha in 3-4 days, All others including Honda, Suzuki, Kawasaki, Polaris please allow 7-10 days for us to receive the parts. 

Delivery Times

Ireland & Northern Ireland:

1-2 Days using GLS/An Post

Germany, France, Netherlands, Belgium:

3-5 Days using GLS/Fedex

Italy, Spain & Other EU Countries:

4-7 Days using GLS/Fedex