PISTON KIT XR400 TRX400 89.00, FORGED WOSSNER 8604D400
PISTON KIT XR400 TRX400 89.00, FORGED WOSSNER 8604D400 - Image 2
PISTON KIT XR400 TRX400 89.00, FORGED WOSSNER 8604D400 - Image 3
PISTON KIT XR400 TRX400 89.00, FORGED WOSSNER 8604D400 - Image 4

PISTON KIT XR400 TRX400 89.00, FORGED WOSSNER 8604D400

£207.59

Wossner
Wossner
SKU: 56-W4606+400.WO

Brand: Wossner

Stock: 1

1 in stock

Categories: , , , , , , , ,
Size

89mm
Product Type

Pistons & Kits
Product Group

Engine
Catalogue

ATV, DIRT, ROAD
Piston Diameter

89.00

PISTON KIT XR400 TRX400 89.00, FORGED WOSSNER 8604D400

Wössner forged piston kit with an 89mm 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
  • Made in Germany

Specifications

  • Bore: 89mm (88.94mm actual)
  • Display: 397 cm³
  • Stroke: 70.00mm
  • Clearance: 0.06mm
  • Wössner Compression Ratio: 11.00:1
  • OEM Compression Ratio: 10.00:1
  • Dome Volume: +3.20 cm³
  • Compression Height: 26.20mm

Cross-Reference OEM Part Numbers

  • Wössner Piston: 8604D400
  • Lock: CW20
  • Pin: WP052
  • Ring Set: 890XSY
  • Rod: P4021

Vehicle Fitments

  • Honda XR400R (1996-2004)
  • Honda TRX400EX (1999-2008)
  • Honda TRX400X (2009-2012)

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