PISTON KIT 99-18 YZ250 1-RING, WOSSNER 8217DB 66.40
Wossner piston kit 8217DB with a 66.41mm bore and 66.36mm actual piston size. Features a forged single-ring design for reduced friction and enhanced response, engineered for optimal heat transfer and distributed load distribution. Manufactured in Germany. Specifications include a 249 cm³ displacement, 68.00mm stroke, 0.05mm clearance, 38.00mm compression height, and a 2-stroke compression ratio. Includes piston Wossner PN# 8217DB, gasket PN# D2041, lock PN# CW18, pin PN# WP033, ring set PN# RSB6640, and rod PN# P2028. Replaces OLD No. 56-W056.WO.B. Weight 324g.
- SKU
- 56-W742.B.WO.1R
- Brand
- Wossner
- Availability
- In Stock (2)
FULL DESCRIPTION
Wossner 8217DB Forged Single-Ring Piston Kit
This Wossner piston kit is precision-engineered for enhanced performance and durability. Featuring a forged single-ring design, this kit is crafted to reduce friction and improve responsiveness in high-performance engines. Its specialized construction ensures optimal heat transfer from the combustion chamber to the cylinder walls, contributing to reliable operation under demanding conditions. The elliptical piston design further enhances performance by distributing load evenly and preventing piston collapse during thermal expansion.
Key Features:
- Forged single-ring piston design for reduced friction and improved engine response.
- Engineered for efficient heat transfer from the combustion chamber to the cylinder walls.
- Elliptical piston shape ensures even load distribution and prevents collapse during thermal expansion.
- Manufactured in Germany, guaranteeing high precision and exceptional reliability.
Specifications:
- Bore Size: 66.41 mm
- Actual Piston Size: 66.36 mm
- Displacement: 249 cm³
- Stroke: 68.00 mm
- Clearance: 0.05 mm
- Compression Ratio: 2-stroke (compatible with Wossner and OEM specifications)
- Compression Height: 38.00 mm
Included Components:
- Wossner Piston (PN# 8217DB - Single Ring)
- Gasket (PN# D2041)
- Lock (PN# CW18)
- Pin (PN# WP033)
- Ring Set (PN# RSB6640)
- Rod (PN# P2028)


