PISTON KIT SET/4 YZF1000 09-15, WOSSNER K8812DA-4 YAMAHA
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Set of 4 forged Wossner pistons with part number K8812DA-4. Standard bore size is 78.00mm with an actual piston diameter of 77.96mm. These pistons feature an elliptical design for balanced pressure distribution under heat and are engineered for optimal combustion heat transfer. Manufactured in Germany. Specifications include a displacement of 1000cc (998cm³), stroke of 52.20mm, clearance of 0.04mm, OEM compression ratio of 12.70:1, dome volume of -3.30cm³, and compression height of 22.80mm. Includes cross-reference part numbers for clip (CW17), piston pin (WP083), and replacement ring set (780XAS).
- SKU
- 56-W9902.000.WO
- Brand
- Wossner
- Availability
- In Stock (1)
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- Variant Id
- 259119
FULL DESCRIPTION
Wossner Forged Piston Kit for Yamaha YZF1000 (2009-2015)
Enhance the performance and reliability of your Yamaha YZF1000 with this high-quality forged piston kit from Wossner. Engineered for the demanding requirements of the R1, this set of four pistons is designed to deliver exceptional power and durability.
Key Features:
- Set of four premium forged Wossner pistons.
- Designed for a standard 78.00mm bore size, with an actual piston diameter of 77.96mm.
- Features an innovative elliptical design to ensure balanced pressure distribution, even under extreme heat and load conditions.
- Optimized for efficient combustion heat transfer, promoting reliable engine operation.
- Manufactured in Germany to the highest standards of precision and quality.
- Maintains OEM compression characteristics while improving thermal resilience.
Specifications:
- Part Number: K8812DA-4
- Bore Size: 78.00mm
- Actual Piston Diameter: 77.96mm
- Displacement: 1000cc (998cm³)
- Stroke: 52.20mm
- Clearance: 0.04mm
- Wossner Compression Ratio: OEM
- OEM Compression Ratio: 12.70:1
- Dome Volume: -3.30cm³
- Compression Height: 22.80mm
Replacement Components:
- Clip: CW17
- Piston Pin: WP083
- Replacement Ring Set: 780XAS
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