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PISTON KIT 02-20 YZ85 47.50 C, WOSSNER 8104DC YAMAHA MX
  • PISTON KIT 02-20 YZ85 47.50 C, WOSSNER 8104DC YAMAHA MX
  • PISTON KIT 02-20 YZ85 47.50 C, WOSSNER 8104DC YAMAHA MX
  • PISTON KIT 02-20 YZ85 47.50 C, WOSSNER 8104DC YAMAHA MX
  • PISTON KIT 02-20 YZ85 47.50 C, WOSSNER 8104DC YAMAHA MX
  • PISTON KIT 02-20 YZ85 47.50 C, WOSSNER 8104DC YAMAHA MX
  • PISTON KIT 02-20 YZ85 47.50 C, WOSSNER 8104DC YAMAHA MX
  • PISTON KIT 02-20 YZ85 47.50 C, WOSSNER 8104DC YAMAHA MX
  • PISTON KIT 02-20 YZ85 47.50 C, WOSSNER 8104DC YAMAHA MX
PISTON KIT 02-20 YZ85 47.50 C, WOSSNER 8104DC YAMAHA MX

PISTON KIT 02-20 YZ85 47.50 C, WOSSNER 8104DC YAMAHA MX

£82.98 GBP
Taxes included. Shipping calculated at checkout.

This Wossner forged piston kit with a 47.52mm bore (+0.02mm oversize) is manufactured for Yamaha YZ85 models from 2002 to 2019. Designed for durability and performance in two-stroke applications, it features a precision elliptical profile and is forged in Germany to ensure optimal heat transfer, load balance, and resistance to deformation under thermal expansion.

Features

  • Forged construction ensures maximum strength and reliability

  • Optimised for efficient combustion heat transfer to cylinder walls

  • Elliptical design promotes uniform bearing surface and reduces piston collapse risk

  • Made in Germany

Specifications

  • Bore: 47.52mm

  • Actual Bore: 47.47mm

  • Engine Displacement: 85 cm³

  • Stroke: 47.80mm

  • Clearance: 0.05mm

  • Compression Ratio: 2-stroke (Wossner and OEM)

  • Compression Height: 26.00mm

  • Lock Part Number: CW14

  • Pin Part Number: WP058

  • Ring Set Part Number: RSB4750

  • Con Rod Kit Part Number: P2008

Vehicle Fitments

  • Yamaha YZ85 2002 - 2019