PISTON KIT 98-99 YZF400 92.00, FORGED WOSSNER 8603DB
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Wossner 92.01mm Bore Piston Kit (Part No. 8603DB). High-strength forged piston construction with optimized heat transfer for improved combustion efficiency. Features an elliptical design for even thrust load distribution and reduced localized pressure to prevent piston collapse. Manufactured in Germany. Maintains OEM compression ratio of 11.0:1. Specifications: Actual Bore Diameter 91.96mm, 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 920XSY.
- SKU
- 56-W4649.B.WO
- Brand
- Wossner
- Availability
- In Stock (1)
Fitments (13)
| Make | Model | Year |
|---|---|---|
| YAMAHA | WR 400F | 1998 |
| YAMAHA | WR 400F | 1999 |
| YAMAHA | WR 400F | 2000 |
| YAMAHA | WRF 400 | 1998 |
| YAMAHA | WRF 400 | 1999 |
| YAMAHA | WRF 400 | 2000 |
| YAMAHA | YZ 400F | 1998 |
| YAMAHA | YZ 400F | 1999 |
| YAMAHA | YZF 400 | 1998 |
| YAMAHA | YZF 400 | 1999 |
| YAMAHA | YZF 400 | 2000 |
| YAMAHA | YZF 450 | 1998 |
| YAMAHA | YZF 450 | 1999 |
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 92mm
- Variant Id
- 255810
FULL DESCRIPTION
Wossner 92.01mm Bore Piston Kit - Forged Performance
Enhance the performance and durability of your motorcycle with the Wossner 92.01mm Bore Piston Kit. This high-performance forged piston is engineered for superior strength, improved heat transfer, and optimized load distribution within the combustion chamber.
Key Features
- High-Strength Forged Construction: Built for exceptional durability and resistance to high stress.
- Optimized Heat Transfer: Promotes efficient combustion by managing heat effectively.
- Elliptical Design: Ensures even thrust load distribution, preventing localized pressure and potential piston collapse.
- German Engineering: Manufactured in Germany to exacting standards.
- OEM Compression Ratio: Maintains the original compression ratio for reliable engine operation.
Specifications
- Bore Size: 92.01mm
- Actual Bore Diameter: 91.96mm
- Compression Ratio: OEM (11.0:1)
- Displacement: 290cc
- Stroke: 61.20mm
- Clearance: 0.06mm
- Dome Volume: -4.80cm³
- Compression Height: 23.00mm
Included Components
- Lock Piston Pin Clip: CW18
- Piston Pin: WP053
- Ring Set: 920XSY
QUESTIONS? JUST ASK
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Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.
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
Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy
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Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.
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