PISTON KIT 98-99 YZF400 94.00, FORGED WOSSNER 8603D200
Wossner 94mm Bore Piston Kit (Part No. 8603D200) is a high-performance forged piston designed for Yamaha YZ400F and WR400F models. It enhances heat transfer within the combustion chamber and features an elliptical design to ensure even load distribution, reducing localized pressure and preventing piston collapse. Manufactured in Germany, this piston maintains the OEM compression ratio for reliable engine performance. Features include high-strength forged piston construction, optimized heat transfer for improved combustion efficiency, elliptical design for even thrust load distribution, and manufacturing in Germany. Specifications: Bore Size 94mm, Actual Bore Diameter 93.95mm, Compression Ratio OEM 11.0:1, Displacement 290cc, Stroke 61.20mm, Clearance 0.06mm, Dome Volume -4.80cm³, Compression Height 23.00mm. Cross-Reference OEM Part Numbers: Lock P/N CW18, Pin P/N WP053, Ring Set P/N 940XSY.
- SKU
- 56-W4649_200.WO
- Brand
- Wossner
- Availability
- In Stock (2)
FULL DESCRIPTION
Wossner 94mm Bore Piston Kit
The Wossner 94mm Bore Piston Kit (Part No. 8603D200) is a high-performance forged piston designed for select Yamaha models. Engineered for superior strength and durability, this piston enhances heat transfer within the combustion chamber and features an elliptical design to ensure even load distribution, reducing localized pressure and preventing piston collapse. Manufactured in Germany, this piston maintains the OEM compression ratio for reliable engine performance.
Key Features:
- High-strength forged piston construction
- Optimized heat transfer for improved combustion efficiency
- Elliptical design for even thrust load distribution
- Manufactured in Germany
- Maintains OEM compression ratio
Specifications:
- Bore Size: 94mm
- Actual Bore Diameter: 93.95mm
- Compression Ratio: OEM
- OEM Compression Ratio: 11.0:1
- Displacement: 290cc
- Stroke: 61.20mm
- Clearance: 0.06mm
- Dome Volume: -4.80cm³
- Compression Height: 23.00mm
Included Components:
- Lock P/N: CW18
- Pin P/N: WP053
- Ring Set P/N: 940XSY
