2Bros Parts

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

$92.34

4.1 Trustpilot 99.9% positive on eBay

Delivery to United States 5–8 business days

Spread the cost with Klarna

1

This Wossner forged piston kit features a 47.52mm bore with a 0.02mm oversize. It is designed for Yamaha YZ85 models and has a bore of 47.47mm. The engine displacement is 85 cm³ and the stroke is 47.80mm, with a clearance of 0.05mm. The compression ratio is 2-stroke (Wossner and OEM), and the compression height is 26.00mm. This kit includes lock part number CW14, pin part number WP058, ring set part number RSB4750, and con rod kit part number P2008. It is manufactured in Germany for durability and performance in two-stroke applications, featuring a precision elliptical profile for optimal heat transfer, load balance, and resistance to deformation under thermal expansion. The forged construction ensures maximum strength and reliability.

Specifications
SKU
56-W805.C.WO
Brand
Wossner
Availability
In Stock (2)

Fitments (52)

MakeModelYear
YAMAHAYZ 801993
YAMAHAYZ 801994
YAMAHAYZ 801995
YAMAHAYZ 801996
YAMAHAYZ 801997
YAMAHAYZ 801998
YAMAHAYZ 801999
YAMAHAYZ 802000
YAMAHAYZ 802001
YAMAHAYZ 852002
YAMAHAYZ 852003
YAMAHAYZ 852004
YAMAHAYZ 852005
YAMAHAYZ 852006
YAMAHAYZ 852007
YAMAHAYZ 852008
YAMAHAYZ 852009
YAMAHAYZ 852010
YAMAHAYZ 852011
YAMAHAYZ 852012
YAMAHAYZ 852013
YAMAHAYZ 852014
YAMAHAYZ 852015
YAMAHAYZ 852016
YAMAHAYZ 852017
YAMAHAYZ 852018
YAMAHAYZ 852019
YAMAHAYZ 852020
YAMAHAYZ 852021
YAMAHAYZ 852022
YAMAHAYZ 852023
YAMAHAYZ 852024
YAMAHAYZ 852025
YAMAHAYZ BB 852002
YAMAHAYZ BB 852003
YAMAHAYZ BB 852004
YAMAHAYZ BB 852005
YAMAHAYZ BB 852006
YAMAHAYZ BB 852007
YAMAHAYZ BB 852008
YAMAHAYZ BB 852009
YAMAHAYZ BB 852010
YAMAHAYZ BB 852011
YAMAHAYZ BB 852012
YAMAHAYZ BB 852013
YAMAHAYZ BB 852014
YAMAHAYZ BB 852015
YAMAHAYZ BB 852016
YAMAHAYZ BB 852017
YAMAHAYZ BB 852018
YAMAHAYZ BB 852019
YAMAHAYZ BB 852020
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
47.50mm
Variant Id
257837
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wossner Forged Piston Kit for Yamaha YZ85

This high-performance Wossner forged piston kit is engineered to enhance the power and longevity of your Yamaha YZ85. Precision manufactured in Germany, this kit is designed for durability and optimal performance in demanding two-stroke applications.

Key Features:

  • Forged construction for superior strength and reliability under stress.
  • Optimized design for efficient combustion heat transfer directly to the cylinder walls, aiding in consistent engine temperature.
  • Features a precision elliptical profile to ensure uniform bearing surface and significantly reduce the risk of piston collapse.
  • Manufactured in Germany, guaranteeing exceptional quality and engineering standards.

Specifications:

  • Bore Size: 47.52mm (Oversize +0.02mm)
  • Actual Piston Diameter: 47.47mm
  • Engine Displacement: 85 cm³
  • Stroke: 47.80mm
  • Piston to Cylinder Clearance: 0.05mm
  • Compression Ratio: Designed for 2-stroke engines (Wossner and OEM compatibility)
  • Compression Height: 26.00mm
  • Lock Part Number: CW14
  • Pin Part Number: WP058
  • Ring Set Part Number: RSB4750
  • Con Rod Kit Part Number: P2008
Before you buy

QUESTIONS? JUST ASK

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

Call us+44 330 133 3748
Email us[email protected]

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

By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.

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.

You might also like

RELATED PARTS

ONE WAY CLUTCH BEARING KIT ALLBALLS 25-1782 CAN-AM 420427220 420832351

ONE WAY CLUTCH BEARING KIT ALLBALLS 25-1782 CAN-AM 420427220 420832351

$40.85
RUBBER KICKSTART 14x25x65mm

RUBBER KICKSTART 14x25x65mm

$1.71
PISTON KIT VERTEX 66.4 B KAWASAKI KX/KXE 250 02-04, VERTEX 22795B

PISTON KIT VERTEX 66.4 B KAWASAKI KX/KXE 250 02-04, VERTEX 22795B

$181.52

Trade pricing available

Buying parts for your business? Apply for a 2BrosParts trade account.

Apply for Trade
1