2Bros Parts

PISTON KIT 06-13 YFZ450 94 A, FORGED WOSSNERS 8784DA

$250.48Only 1 left

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Delivery to United States 5–8 business days

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Wossner forged piston kit with a 95.00mm bore and 94.95mm diameter. Manufactured in Germany, this piston offers superior strength and design, ensuring optimal heat transfer to cylinder walls. Its elliptical design provides a uniform bearing surface under heat expansion, reducing localized pressure and evenly distributing thrust loads to prevent piston collapse. Features forged construction for superior strength, optimized heat transfer for efficient combustion, and an elliptical design for uniform load distribution. Specifications include a 95.00mm bore, 94.95mm diameter, 449 cm³ display, 63.40mm stroke, 0.05mm clearance, 11.60:1 Wossner compression ratio, 11.40:1 OEM compression ratio, -8.50 cm³ dome volume, and 25.10mm compression height. Cross-reference OEM part numbers include Wossner Piston Yamaha YFZ450 (PN# 8784DA), Lock P/N: CW20, Pin P/N: WP029, and Ring Set P/N: 950XDS.

Specifications
SKU
56-W250.A.WO
Brand
Wossner
Availability
In Stock (1)

Fitments (12)

MakeModelYear
YAMAHAYFZ 4502006
YAMAHAYFZ 4502007
YAMAHAYFZ 4502008
YAMAHAYFZ 4502009
YAMAHAYFZ 4502010
YAMAHAYFZ 4502011
YAMAHAYFZ 4502012
YAMAHAYFZ 4502013
YAMAHAYFZ 4502014
YAMAHAYFZ 4502015
YAMAHAYFZ 4502016
YAMAHAYFZ 4502017
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
94mm
Variant Id
255208
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wossner Forged Piston Kit - 95.00mm Bore

Upgrade your vehicle's performance with this high-quality forged piston kit from Wossner. Engineered for superior strength and durability, this piston kit is designed to optimize heat transfer to cylinder walls, ensuring efficient combustion and reliable power output.

The innovative elliptical design of this piston provides a uniform bearing surface even under extreme heat expansion. This reduces localized pressure and evenly distributes thrust loads, effectively preventing piston collapse and extending the lifespan of your engine components.

Key Features:

  • Forged Construction: Offers exceptional strength and resistance to wear, ideal for high-performance applications.
  • Optimized Heat Transfer: Promotes efficient thermal management within the combustion chamber.
  • Elliptical Design: Ensures uniform load distribution and reduces stress for enhanced durability.
  • German Engineering: Manufactured in Germany, guaranteeing precision and quality craftsmanship.

Specifications:

  • Bore Size: 95.00mm
  • Piston Diameter: 94.95mm
  • Display Volume: 449 cm³
  • Stroke: 63.40mm
  • Clearance: 0.05mm
  • Wossner Compression Ratio: 11.60:1
  • OEM Compression Ratio: 11.40:1
  • Dome Volume: -8.50 cm³
  • Compression Height: 25.10mm

Included Components:

  • Piston Kit (Part #: 8784DA)
  • Lock Ring Part Number: CW20
  • Pin Part Number: WP029
  • Ring Set Part Number: 950XDS
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

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.

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