PISTON KIT 1997 YZ125 56.00, WOSSNER 8117D200 YAMAHA MX
4.1 Trustpilot 99.9% positive on eBay
Delivery to United States 5–8 business days
Spread the cost with 
Wossner 8117D200 Piston Kit. 56.00mm bore, +2.00mm oversize. This forged piston kit is precision-engineered in Germany with an elliptical profile that optimises load distribution and reduces localised stress during heat expansion, enhancing durability and preventing piston collapse. It promotes effective heat dissipation from the combustion chamber to the cylinder wall for stable engine performance. Features include a high-strength forged piston for durability, elliptical profile for uniform expansion, minimised risk of piston collapse, optimised heat transfer, and precision manufacturing in Germany. Specifications: Bore Size 56.00mm (+2.00mm oversize), Actual Diameter 55.94mm, Compression Height 28.00mm, Stroke 54.50mm, Displacement 124 cm³, Piston Clearance 0.06mm, Compression Ratio 2-stroke. Includes Lock CW15, Pin WP032, Ring Set RSB5600, and Rod P2019.
- SKU
- 56-W693_200.WO
- Brand
- Wossner
- Availability
- In Stock (1)
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 56.00mm
- Variant Id
- 257473
FULL DESCRIPTION
Wossner Forged Piston Kit
Enhance the performance and durability of your two-stroke engine with this Wossner forged piston kit. Precision-engineered in Germany, this piston is designed to withstand high-performance conditions and demanding applications.
Key Features:
- High-strength forged construction for superior durability and performance.
- Features an elliptical profile that optimizes load distribution and reduces localized stress during heat expansion, preventing piston collapse.
- Promotes effective heat dissipation from the combustion chamber to the cylinder wall for stable engine performance.
- Precision-manufactured in Germany for quality and reliability.
Specifications:
- Bore Size: 56.00mm (2.00mm oversize)
- Actual Diameter: 55.94mm
- Compression Height: 28.00mm
- Stroke: 54.50mm
- Displacement: 124 cm³
- Piston Clearance: 0.06mm
- Compression Ratio: 2-stroke (compatible with Wossner and OEM)
Kit Components:
- Wossner Piston Kit Part No: 8117D200
- Lock: CW15
- Pin: WP032
- Ring Set: RSB5600
- Rod: P2019
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.