PISTON KIT XR400 TRX400 85.50, FORGED WOSSNER 8604D050
Wossner forged piston kit with an 85.50mm bore. 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 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. Specifications: Bore: 85.50mm (85.44mm actual), Display: 397 cm³, Stroke: 70.00mm, Clearance: 0.06mm, Wossner Compression Ratio: 11.00:1, OEM Compression Ratio: 10.00:1, Dome Volume: +3.20 cm³. Cross-Reference OEM Part Numbers: Wossner Piston: 8604D050, Lock: CW20, Pin: WP052, Ring Set: 855XSY, Rod: P4021.
- SKU
- 56-W4606+050.WO
- Brand
- Wossner
- Availability
- In Stock (1)
FULL DESCRIPTION
Wossner Forged Piston Kit 85.50mm for XR400 and TRX400
Upgrade your engine's performance and durability with this premium forged piston kit from Wossner. Specifically engineered for Honda XR400R motorcycles and TRX400 series ATVs, this kit features a precise 85.50mm bore for an enhanced fit and improved power output. Manufactured in Germany, Wossner pistons are renowned for their superior strength, exceptional heat transfer capabilities, and long-lasting durability. The innovative elliptical design ensures a uniform bearing surface, even under extreme heat expansion, which effectively distributes pressure and prevents piston collapse, leading to a more reliable engine.
Key Features:
- Forged Construction: Provides significantly enhanced strength and durability over cast pistons.
- Optimized Heat Transfer: Promotes efficient cooling by transferring heat effectively to the cylinder walls.
- Elliptical Piston Design: Guarantees uniform bearing surface distribution to reduce localized pressure and prevent piston collapse under load.
- Increased Compression: Boosts engine performance with an elevated compression ratio compared to OEM specifications.
- German Engineering: Manufactured to exacting standards in Germany for guaranteed quality and performance.
Specifications:
- Bore Size: 85.50mm (Actual measurement: 85.44mm)
- Engine Displacement: 397 cm³
- Stroke: 70.00mm
- Piston Clearance: 0.06mm
- Wossner Compression Ratio: 11.00:1
- OEM Compression Ratio: 10.00:1
- Dome Volume: +3.20 cm³
