PISTON KIT XR400 TRX400 85.00, FORGED WOSSNER 8604DA HONDA 13110-KCY-670
Wossner forged piston kit with an 85mm bore, designed for Honda XR400R motorcycles and TRX400 series ATVs. Manufactured in Germany, 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 forged construction for superior strength and durability, optimized heat transfer to cylinder walls, elliptical design for uniform bearing surface under heat expansion, increased compression ratio for improved engine performance, and made in Germany. Specifications include a bore of 85mm (84.94mm actual), displacement of 397 cm³, stroke of 70.00mm, clearance of 0.06mm, Wossner compression ratio of 11.00:1, OEM compression ratio of 10.00:1, dome volume of +3.20 cm³, and compression height of 26.20mm. Cross-reference OEM part numbers include Wossner Piston: 8604DA, Lock: CW20, Pin: WP052, Ring Set: 850XSY, Rod: P4021, and OEM Part Numbers: 13110-KCY-670, 4628M08500.
- SKU
- 56-W4606+00A.WO
- Brand
- Wossner
- Availability
- In Stock (1)
FULL DESCRIPTION
Wossner Forged Piston Kit - 85.00mm Bore
Upgrade your Honda XR400R motorcycle or TRX400 series ATV with this high-performance Wossner forged piston kit. Engineered and manufactured in Germany, this piston kit is designed to significantly enhance your engine's strength, heat transfer capabilities, and overall durability.
The advanced elliptical design of the piston ensures uniform distribution of the bearing surface, even under extreme heat and expansion. This innovative design effectively reduces localized pressure points, preventing piston collapse and ensuring consistent performance.
Key Features:
- Forged Construction: Provides superior strength and longevity compared to cast pistons.
- Optimized Heat Transfer: Efficiently transfers heat to cylinder walls, aiding in temperature regulation.
- Elliptical Design: Guarantees uniform bearing surface distribution for reduced wear and enhanced reliability.
- Increased Compression Ratio: Offers an 11.00:1 compression ratio (compared to OEM 10.00:1) for a noticeable improvement in engine performance.
- Premium Manufacturing: Made in Germany to exacting standards.
Specifications:
- Bore Size: 85.00mm (Actual 84.94mm)
- Stroke: 70.00mm
- Piston Clearance: 0.06mm
- Wossner Compression Ratio: 11.00:1
- OEM Compression Ratio: 10.00:1
- Dome Volume: +3.20 cm³
- Compression Height: 26.20mm
This kit includes essential components for a complete upgrade. Please check compatibility with your specific vehicle model.
