PISTON KIT 80-82 YZ IT465 85.5, WOSSNER 8265D050 YAMAHA
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Wossner piston kit with 85.50mm bore size (85.42mm actual). Forged in Germany for excellent strength and thermal efficiency. The elliptical profile distributes thrust loads evenly during thermal expansion, minimizing localized stress and reducing the likelihood of piston failure. Features forged construction, elliptical design for uniform load distribution under heat, and promotes efficient combustion chamber heat transfer to cylinder walls. Specifications include a 465 cm³ displacement, 82.00 mm stroke, 0.08 mm clearance, 40.00 mm compression height, and a 2-stroke compression ratio. Includes piston kit part number 8265D050, lock CW18, pin WP042, and ring set RSC8550 x2. Part number 56-W551_0.50.WO.
- SKU
- 56-W551_0.50.W0
- Brand
- Wossner
- Availability
- In Stock (2)
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 85.5mm
- Variant Id
- 256753
FULL DESCRIPTION
Wossner Piston Kit - High Performance Forged Design
This Wossner piston kit is precision-engineered for exceptional strength and thermal efficiency. Manufactured in Germany, its forged construction provides superior durability compared to cast pistons. The innovative elliptical profile is specifically designed to distribute thrust loads evenly as the piston heats up and expands, minimizing localized stress points and significantly reducing the risk of piston failure.
This kit promotes efficient transfer of combustion chamber heat to the cylinder walls, contributing to optimal engine performance.
Key Features:
- Forged construction for maximum strength and longevity.
- Elliptical piston profile for uniform load distribution under thermal stress.
- Designed for efficient heat transfer from the combustion chamber to the cylinder walls.
- High-quality manufacturing from Germany.
Specifications:
- Bore Size: 85.50mm (actual 85.42mm)
- Display: 465 cm³
- Stroke: 82.00 mm
- Clearance: 0.08 mm
- Compression Height: 40.00 mm
- Compression Ratio: 2-stroke (compatible with Wossner and OEM specifications)
Included Components:
- Piston Kit Reference: 8265D050
- Lock: CW18
- Pin: WP042
- Ring Set: RSC8550 (x2)
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Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details
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