PISTON KIT YAM XS650 76.50, WOSSNER K8818D150-2 680cc
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Set of 4 Wossner forged pistons, +1.50mm oversize (76.50mm bore), part number K8818D150-2. Features an elliptical design for balanced heat expansion and load distribution, optimal heat transfer, and is made in Germany. Specifications include a 76.44mm actual piston size, 679/688cm³ displacement, 74.00mm stroke, 0.06mm clearance, OEM compression ratio of 8.40:1, +23.40cm³ dome volume, and 29.00mm compression height. Cross-reference OEM part numbers for clips: CW20, piston pin: WP068, and rings: 765XDS.
- SKU
- 56-W9899.150.WO
- Brand
- Wossner
- Availability
- In Stock (1)
Fitments (8)
| Make | Model | Year |
|---|---|---|
| YAMAHA | XS 650 | 1974 |
| YAMAHA | XS 650 | 1975 |
| YAMAHA | XS 650 | 1976 |
| YAMAHA | XS 650 | 1977 |
| YAMAHA | XS 650 | 1978 |
| YAMAHA | XS 650 | 1979 |
| YAMAHA | XS 650 | 1980 |
| YAMAHA | XS 650 | 1981 |
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 76.50mm
- Variant Id
- 259110
FULL DESCRIPTION
Wossner Piston Kit for Yamaha XS650 (76.50mm Bore)
This Wossner piston kit is engineered to enhance the performance and durability of your Yamaha XS650 motorcycle. The kit features four forged pistons with a 76.50mm bore, representing a +1.50mm oversize. Wossner pistons are manufactured in Germany with precision and quality in mind, designed to handle increased engine demands.
The unique elliptical design of these pistons ensures even distribution of thrust loads as the piston expands under heat. This intelligent design helps to prevent localized stress and potential piston collapse, promoting longevity and consistent engine operation. These pistons are also designed for optimal heat transfer to the cylinder walls, contributing to efficient engine cooling.
Key Features:
- Set of four high-quality forged Wossner pistons.
- Oversize specification: +1.50mm.
- Actual piston diameter: 76.44mm.
- Bore size: 76.50mm.
- Elliptical piston design for balanced load distribution and heat expansion.
- Engineered for optimal heat transfer.
- Proudly made in Germany.
Specifications:
- Part Number: K8818D150-2
- Displacement: 679 / 688cm³
- Stroke: 74.00mm
- Clearance: 0.06mm
- Dome Volume: +23.40cm³
- Compression Height: 29.00mm
- Wossner Compression Ratio: OEM
- OEM Compression Ratio: 8.40:1
Included Components (Cross-Reference):
- Clips: CW20
- Piston Pin: WP068
- Rings: 765XDS
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