2Bros Parts

PISTON KIT 92-98 YZ250 68.00 C, WOSSNER 8023DC YAMAHA MX

$161.42Only 1 left

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Wossner forged piston kit for Yamaha YZ250 and WR250 models. Features +0.02mm oversize bore size of 68.02mm, with an actual diameter of 67.96mm. This piston kit is engineered for enhanced thermal conductivity and mechanical stability. The elliptical piston profile helps maintain an even load distribution during heat expansion, reducing stress concentrations and preventing piston collapse. Its design supports effective combustion heat transfer to the cylinder wall, contributing to improved reliability. Manufactured in Germany. Specifications include a compression height of 36.00mm, stroke of 68.00mm, displacement of 246 cm³, piston clearance of 0.06mm, and a 2-stroke compression ratio. Includes piston kit part number 8023DC, lock CW18, pin WP033, ring set RSB6800 x2, and rod P2029.

Specifications
SKU
56-W677.C.WO
Brand
Wossner
Availability
In Stock (1)

Fitments (23)

MakeModelYear
YAMAHAWR 2501988
YAMAHAWR 2501989
YAMAHAWR 2501990
YAMAHAWR 2501991
YAMAHAWR 2501992
YAMAHAWR 2501993
YAMAHAWR 2501994
YAMAHAWR 2501995
YAMAHAWR 2501996
YAMAHAWR 2501997
YAMAHAWR 2501998
YAMAHAWR 2501999
YAMAHAYZ 2501988
YAMAHAYZ 2501989
YAMAHAYZ 2501990
YAMAHAYZ 2501991
YAMAHAYZ 2501992
YAMAHAYZ 2501993
YAMAHAYZ 2501994
YAMAHAYZ 2501995
YAMAHAYZ 2501996
YAMAHAYZ 2501997
YAMAHAYZ 2501998
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
68.00mm
Variant Id
257455
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wossner Forged Piston Kit for Yamaha YZ250 & WR250

This Wossner forged piston kit is engineered for enhanced thermal conductivity and mechanical stability. The elliptical piston profile helps maintain an even load distribution during heat expansion, reducing stress concentrations and preventing piston collapse. Its design supports effective combustion heat transfer to the cylinder wall, contributing to improved reliability under demanding conditions.

Key Features

  • Forged piston construction ensures high structural integrity.
  • Elliptical design provides balanced expansion and bearing surface.
  • Reduces localized stress and risk of collapse under thermal load.
  • Supports effective heat dissipation from the combustion chamber.
  • Precision manufactured in Germany.

Specifications

  • Bore Size: 68.02mm (+0.02mm oversize)
  • Actual Diameter: 67.96mm
  • Compression Height: 36.00mm
  • Stroke: 68.00mm
  • Displacement: 246 cm³
  • Piston Clearance: 0.06mm
  • Compression Ratio: 2-stroke (Wossner and OEM)

Included Components

  • Piston Kit Part No: 8023DC
  • Lock: CW18
  • Pin: WP033
  • Ring Set: RSB6800 x2
  • Rod: P2029
Before you buy

QUESTIONS? JUST ASK

Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).

Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.

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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Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.

More answers in our FAQ.

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