2Bros Parts

PISTON KIT 88-92 YZ80 49.00, WOSSNER 8187D100 YAMAHA MX

$103.94

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Delivery to United States 5–8 business days

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Wossner 8187D100 piston kit is a forged piston kit precision engineered in Germany for durability and optimal heat dissipation. This piston kit features an elliptical design for an even bearing surface during thermal expansion, minimising localised pressure and helping to prevent piston collapse. The kit includes all critical components required for a complete engine rebuild. Bore size is 49.00 mm, actual bore diameter is 48.95 mm, stroke is 45.60 mm, display displacement is 82 cm³, clearance is 0.05 mm, compression ratio is 2-stroke (Wossner and OEM), and compression height is 27.00 mm. This kit includes piston, lock CW12, pin WP091, and ring set RSB4900.

Specifications
SKU
56-W569+100.WO
Brand
Wossner
Availability
In Stock (3)
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
49.0mm
Variant Id
256909
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wossner 8187D100 Oversize Piston Kit for Yamaha YZ80 (1988-1992)

Enhance your Yamaha YZ80's performance with the Wossner 8187D100 Oversize Piston Kit. Precision engineered in Germany, this forged piston kit is designed for 49.00 mm bore applications, offering a +1.00 mm oversize solution for optimal engine health and power output. The advanced construction ensures superior durability and efficient heat dissipation, crucial for high-performance motocross engines. Experience improved engine longevity and reliability with this meticulously crafted component.

Key Features:

  • Forged piston construction for exceptional strength and thermal efficiency.
  • Engineered for effective heat transfer from the combustion chamber, reducing thermal stress.
  • Elliptical piston profile promotes uniform thrust load distribution.
  • Minimizes localized pressure, significantly reducing the risk of piston collapse.
  • Precision manufactured in Germany for uncompromising quality.
  • Designed as a complete kit for a precise engine rebuild.

Specifications:

  • Bore Size: 49.00 mm
  • Actual Bore Diameter: 48.95 mm
  • Stroke: 45.60 mm
  • Display Displacement: 82 cm³
  • Clearance: 0.05 mm
  • Compression Ratio: 2-stroke (Wossner and OEM)
  • Compression Height: 27.00 mm

Included Components:

  • Piston Kit: 8187D100
  • Lock: CW12
  • Pin: WP091
  • Ring Set: RSB4900
Before you buy

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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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