Wiseco 48.50 mm 520M04850 Piston Kit
Wiseco 48.50 mm 520M04850 Piston Kit
Wiseco 48.50 mm 520M04850 Piston Kit
Wiseco 48.50 mm 520M04850 Piston Kit
Wiseco 48.50 mm 520M04850 Piston Kit
Wiseco 48.50 mm 520M04850 Piston Kit
Wiseco 48.50 mm 520M04850 Piston Kit
Wiseco 48.50 mm 520M04850 Piston Kit
Wiseco 48.50 mm 520M04850 Piston Kit
Wiseco 48.50 mm 520M04850 Piston Kit
Wiseco 48.50 mm 520M04850 Piston Kit
Wiseco 48.50 mm 520M04850 Piston Kit
Wiseco 48.50 mm 520M04850 Piston Kit
Wiseco 48.50 mm 520M04850 Piston Kit
Wiseco 48.50 mm 520M04850 Piston Kit
Wiseco 48.50 mm 520M04850 Piston Kit
Wiseco 48.50 mm 520M04850 Piston Kit
Wiseco 48.50 mm 520M04850 Piston Kit
Wiseco 48.50 mm 520M04850 Piston Kit
Wiseco 48.50 mm 520M04850 Piston Kit

Wiseco 48.50 mm 520M04850 Piston Kit

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  • $127.99
  • $141.95
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Classic Forged 2-stroke pistons are perfect for those looking to rebuild their 2-stroke engine with reliable, high-quality components. These pistons cover a wide range of Powersports rebuilds, including vintage motocross models, classic street bikes, and snowmobiles. The forged material improves tensile strength over cast pistons, ensuring refreshed performance on the track or the trail. 48.50 mm Bore
  • Dedicated forgings and additional lightening operations allow for optimized strength-to-weight ratio
  • Improved tensile strength of forged material optimizes strength and service life
  • Designed and built for each specific 2-stroke powersports engine
  • Includes high-quality piston ring(s), wrist pin(s), and circlips
  • Engineered, forged, and machined in the USA in Mentor, OH

The Wiseco 520M04850 Classic Forged 2-stroke piston kit is designed for rebuilding compatible powersports engines with a 48.50 mm bore. This piston kit fits 1985, 1986, and 1987 Yamaha YZ80 models. Its forged construction is engineered to provide improved tensile strength compared with cast pistons, supporting dependable performance and service life in vintage motocross applications.

Dedicated forgings and additional lightening operations help optimize the strength-to-weight ratio. The piston is designed and built for the specific 2-stroke powersports engine application. The kit includes high-quality piston ring(s), wrist pin(s), and circlips. The piston is engineered, forged, and machined in the USA in Mentor, Ohio. Manufacturer part number: 520M04850. Vendor part number: 520M04850.

Features:

  • Bore: 48.50 mm
  • Fitment: 1985 Yamaha YZ80, 1986 Yamaha YZ80, and 1987 Yamaha YZ80
  • Forged construction improves tensile strength compared with cast pistons
  • Dedicated forgings and lightening operations optimize the strength-to-weight ratio
  • Designed and built for the specific 2-stroke powersports engine
  • Includes high-quality piston ring(s), wrist pin(s), and circlips
  • Engineered, forged, and machined in the USA in Mentor, Ohio



Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: powersports
Epa: N/A
Regular Stock: false
Units Per Sku: 1
Fitment:
1985 Yamaha YZ80 Base
1986 Yamaha YZ80 Base
1987 Yamaha YZ80 Base