PISTON KIT 99-08 TRX XR 89.00, FORGED WOSSNER 8702D400 400
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Wossner 89mm Bore Piston Kit (Part No. 8702D400) is a high-performance forged piston designed for superior strength and durability. It enhances heat transfer within the combustion chamber and features an elliptical design for even load distribution, preventing piston collapse. Manufactured in Germany, this piston kit offers a compression ratio of 12.5:1 for improved engine performance. Features include high-strength forged piston construction, optimized heat transfer for better combustion efficiency, and an elliptical design for uniform bearing surface expansion. Specifications include a bore size of 89mm, actual bore diameter of 88.94mm, a compression ratio of 12.5:1 (OEM 10.0:1), displacement of 397cc, stroke of 70.00mm, clearance of 0.06mm, dome volume of +8.40cm³, and compression height of 26.20mm. Cross-reference OEM part numbers include Lock P/N CW20, Pin P/N WP052, Ring Set P/N 890XSY, and Rod P/N P4021.
- SKU
- 56-W4628_400.WO
- Brand
- Wossner
- Availability
- In Stock (1)
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 89mm
- Variant Id
- 255792
FULL DESCRIPTION
Wossner 89mm Forged Piston Kit for Honda TRX400EX/X
Upgrade your engine's performance and durability with the Wossner 89mm Bore Piston Kit. This high-performance forged piston is engineered for superior strength, enhanced heat transfer, and optimized load distribution. Its elliptical design prevents piston collapse, ensuring consistent performance and longevity.
Key Features:
- High-Strength Forged Construction: Built for extreme conditions and enhanced durability.
- Optimized Heat Transfer: Improves combustion efficiency within the engine.
- Elliptical Design: Promotes uniform bearing surface expansion for reduced wear.
- German Engineering: Manufactured in Germany to exacting standards.
Specifications:
- Bore Size: 89.00mm
- Actual Bore Diameter: 88.94mm
- Compression Ratio: 12.5:1 (Compared to OEM 10.0:1)
- Displacement: 397cc
- Stroke: 70.00mm
- Piston Clearance: 0.06mm
- Dome Volume: +8.40cm³
- Compression Height: 26.20mm
Included Components:
- Lock Piston Pin Clip (P/N: CW20)
- Piston Pin (P/N: WP052)
- Ring Set (P/N: 890XSY)
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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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