PISTON KIT 99-08 TRX XR 87.50, FORGED WOSSNER 8702D250 400
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Wossner forged piston kit with an 87.50mm bore. This high-performance piston enhances strength, heat transfer, and durability. The elliptical design ensures uniform bearing surface distribution, reducing localized pressure and preventing piston collapse. Features include forged construction for superior strength and durability, optimized heat transfer to cylinder walls, elliptical design for uniform bearing surface under heat expansion, and increased compression ratio for improved engine performance. Made in Germany. Specifications: Bore: 87.50mm (87.44mm actual), Display: 397 cm³, Stroke: 70.00mm, Clearance: 0.06mm, Wossner Compression Ratio: 12.50:1, OEM Compression Ratio: 10.00:1, Dome Volume: +8.40 cm³, Compression Height: 26.20mm. Wossner Piston part number: 8702D250.
- SKU
- 56-W4628_250.WO
- Brand
- Wossner
- Availability
- In Stock (2)
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 87.5mm
- Variant Id
- 255790
FULL DESCRIPTION
Wossner Forged Piston Kit 87.50mm for Honda TRX 400
Upgrade your Honda TRX400EX or TRX400X with this high-performance forged piston kit from Wossner. Engineered in Germany, this piston offers exceptional strength, improved heat transfer, and enhanced durability for demanding off-road applications. The innovative elliptical design ensures even distribution of bearing surface pressure, even under extreme heat, preventing premature wear and potential piston collapse.
Key Features:
- Forged construction for superior strength and longevity
- Optimized for efficient heat transfer to the cylinder walls
- Elliptical piston design promotes uniform bearing surface distribution
- Increases compression ratio for noticeable performance gains
- Precision manufactured in Germany
Specifications:
- Bore: 87.50mm (actual 87.44mm)
- Displacement: 397 cm³
- Stroke: 70.00mm
- Clearance: 0.06mm
- Wossner Compression Ratio: 12.50:1
- OEM Compression Ratio: 10.00:1
- Dome Volume: +8.40 cm³
- Compression Height: 26.20mm
Includes:
- Wossner Piston: 8702D250
- Lock: CW20
- Pin: WP052
- Ring Set: 875XSY
- Rod: P4021
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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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