PISTON KIT 76-80 YZ80 49.00, FORGED WOSSNER 8183DA
4.1 Trustpilot 99.9% positive on eBay
Delivery to United States 5–8 business days
Spread the cost with
Wossner 49mm forged piston kit. Features forged construction for superior strength and durability, optimized heat transfer to cylinder walls, elliptical design for uniform bearing surface under heat expansion, reduced localized pressure, and even distribution of thrust loads, preventing piston collapse under high-stress conditions. Specifications include a bore size of 49mm, Wossner part number 8183DA, lock part number CW12, pin part number WP091, ring set part number RSB4900, displacement of 79 cm³, stroke of 42.00mm, clearance of 0.05mm, 2-stroke compression ratio, and compression height of 29.50mm. Made in Germany.
- SKU
- 56-W457+000.WO
- Brand
- Wossner
- Availability
- In Stock (2)
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 49mm
- Variant Id
- 255713
FULL DESCRIPTION
Wossner 49mm Forged Piston Kit for Yamaha YZ80
Enhance your Yamaha YZ80's performance and durability with this high-quality 49mm forged piston kit from Wossner. Engineered in Germany, this piston is designed for optimal combustion chamber heat transfer and uniform load distribution, significantly reducing localized pressure and preventing piston collapse even under the most demanding conditions.
Key Features:
- Forged Construction: Provides superior strength and exceptional durability for a longer lifespan.
- Optimized Heat Transfer: Efficiently transfers heat to the cylinder walls, maintaining optimal operating temperatures.
- Elliptical Design: Ensures a uniform bearing surface, compensating for heat expansion and maintaining consistent performance.
- Even Load Distribution: Reduces localized pressure points and evenly distributes thrust loads for smoother operation.
- Piston Collapse Prevention: Engineered to withstand high-stress situations and prevent failure.
Specifications:
- Bore Size: 49.00mm
- Displacement: 79 cm³
- Stroke: 42.00mm
- Clearance: 0.05mm
- Compression Ratio: 2-stroke
- Compression Height: 29.50mm
- Wossner Part Number: 8183DA
- Lock Part Number: CW12
- Pin Part Number: WP091
- Ring Set Part Number: RSB4900
QUESTIONS? JUST ASK
Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).
Call or email us with your make, model and year 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.
Trade pricing available
Buying parts for your business? Apply for a 2BrosParts trade account.


