Piston Kit 02-13 Trx250 69.50, Forged Piston Wossner 8870D100, Honda Atv

Wossner forged piston kit designed for superior strength and durability. Engineered for optimal heat transfer from the combustion chamber to the cylinder walls. The elliptical design ensures a uniform bearing surface under heat expansion, reducing localized pressure and evenly distributing thrust loads to prevent piston collapse. Manufactured in Germany for high-quality performance. This piston has an oversize bore of +1.00mm.

Features

• High-strength forged construction for durability
• Optimized heat transfer for improved engine performance
• Elliptical design for even load distribution and prevention of piston collapse
• Precision manufacturing in Germany
• Oversize bore +1.00mm

Specifications

• Bore Size: 69.50mm
• Actual Diameter: 69.45mm
• Displacement: 229 cm³
• Stroke: 62.20mm
• Clearance: 0.05mm
• Compression Ratio: OEM
• OEM Compression Ratio: 10.00:1
• Dome Volume: +4.10 cm³
• Compression Height: 21.70mm

Included Components

• Piston: Wossner 8870D100
• Ring Set: 695XKS
• C-Clip Set: CW15
• Pin: WP102

Cross-Reference OEM Part Numbers

• 13101-HN6-000
• 13101-HM8-A40
• Namura NA-10025

Vehicle Fitments

• Honda TRX250EX Sportrax (2001-2013)
• Honda TRX250 Recon Utility (1997-2001)
• Honda TRX250 FourTrax Recon ES/TE/TM (2002-2013)
• Honda TRX250X (2009, 2011-2012)

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