2Bros Parts

PISTON KIT 94-96 YZ125 55.00, WOSSNER 8116D100 YAMAHA MX

$139.63Only 1 left

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Wossner Piston Kit 8116D100 is a +1.00 oversize forged piston with a 55.00mm bore, designed for Yamaha YZ125 models from 1994 to 1996. Made in Germany, this piston offers robust performance and thermal efficiency. Its elliptical profile ensures consistent load distribution during heat expansion, reducing localized pressure zones and increasing reliability in high-stress engine conditions. Features include high-strength forged construction for maximum durability, an elliptical design for even thrust force distribution under thermal load, and optimisation for efficient heat transfer to cylinder walls. Specifications include a bore of 55.00 mm, actual piston diameter of 54.94 mm, stroke of 54.50 mm, displacement of 124 cm³, clearance of 0.06 mm, and compression height of 28.00 mm. The Wossner compression ratio is 2-stroke, as is the OEM compression ratio. Cross-reference OEM part numbers include Wossner Piston: 8116D100, Lock: CW16, Pin: WP036, Ring Set: RSB5500, Rod: P2047, and Internal Part No: 56-W647+100.WO.

Specifications
SKU
56-W647+100.WO
Brand
Wossner
Availability
In Stock (1)
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
55.00mm
Variant Id
257318
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wossner Oversize Forged Piston Kit

Upgrade your engine's performance with this high-strength Wossner forged piston kit. Engineered for durability and reliability, this oversize piston is designed to deliver optimal performance under demanding conditions. Manufactured in Germany, Wossner pistons feature an advanced elliptical profile that ensures consistent load distribution, even during heat expansion, reducing localized pressure and enhancing engine longevity.

Key Features:

  • Durable forged construction for maximum strength.
  • Elliptical design promotes even thrust force distribution under thermal load.
  • Optimized for efficient heat transfer to cylinder walls.
  • Precision manufactured in Germany.
  • +1.00 mm oversize for enhanced performance.

Specifications:

  • Bore: 55.00 mm
  • Actual Piston Diameter: 54.94 mm
  • Stroke: 54.50 mm
  • Displacement: 124 cm³
  • Clearance: 0.06 mm
  • Compression Height: 28.00 mm
  • Engine Type: 2-stroke
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Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details

Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy

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