PISTON KIT 80-82 YZ IT465 86.5, WOSSNER 8265D150 YAMAHA
Wossner piston kit with 86.50mm bore size (86.42mm actual) and 82.00 mm stroke. Forged in Germany for strength and reliability, the piston is engineered with an elliptical profile that distributes thrust loads evenly during heat expansion, minimising localised pressure and reducing the risk of piston collapse. Specifications include 0.08 mm clearance and 40.00 mm compression height. Compatible with 465 cm³ displacement engines. Features forged construction, elliptical design for uniform load distribution under thermal expansion, and optimised heat transfer to cylinder walls. Includes lock CW18, pin WP042, and ring set RSC8650. Part number 56-W551_1.50.WO.
- SKU
- 56-W551_1.50.WO
- Brand
- Wossner
- Availability
- In Stock (2)
FULL DESCRIPTION
Wossner 86.50mm Piston Kit
This high-performance Wossner piston kit is engineered for exceptional durability and optimal engine function. Manufactured in Germany, this piston features a forged construction for superior strength. Its innovative elliptical design ensures even distribution of thrust loads, even during significant heat expansion. This minimizes localized pressure points, reducing the risk of piston collapse and promoting efficient heat transfer to the cylinder walls.
Key Features:
- Forged construction for enhanced strength and reliability.
- Elliptical piston profile for uniform load distribution.
- Minimizes localized pressure during thermal expansion.
- Optimized for efficient heat transfer.
- Manufactured to exacting standards in Germany.
Specifications:
- Bore Size: 86.50mm (Actual 86.42mm)
- Displacement: 465 cm³
- Stroke: 82.00 mm
- Piston Clearance: 0.08 mm
- Compression Height: 40.00 mm
- Compression Ratio: 2-stroke (compatible with Wossner and OEM specifications)
Kit Components:
- Piston Kit Part Number: 8265D150
- Lock Ring: CW18
- Piston Pin: WP042
- Ring Set: RSC8650


