PISTON KIT 07-18 KTM SX125 56, FORGEDWOSSNER 8220D200
4.1 Trustpilot 99.9% positive on eBay
Free UK delivery 2–4 business days
Wossner forged piston kit for 2-stroke engines. Engineered for optimal heat transfer from the combustion chamber to cylinder walls. The elliptical design ensures uniform bearing surface under heat expansion, reducing localized pressure and distributing thrust loads evenly to prevent piston collapse. Manufactured in Germany. Features forged construction for enhanced durability, optimized heat transfer for improved performance, an elliptical design to prevent localized pressure and piston collapse, and a single-ring configuration for reduced friction and improved performance. Specifications include a bore of 55.95 mm, piston size of 56.00 mm, displacement of 125 cm³, stroke of 54.50 mm, clearance of 0.05 mm, Wossner compression ratio of 2-stroke, OEM compression ratio of 2-stroke, and compression height of 29.50 mm. Cross-reference OEM part numbers include Gasket: D2043, Lock: CW15, Pin: WP032, and Rod: P2012.
- SKU
- 56-W035_200.WO
- Brand
- Wossner
- Availability
- Out of Stock
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- Variant Id
- 254345
FULL DESCRIPTION
Wossner Forged Piston Kit for 2-Stroke Engines
Enhance the strength and performance of your 2-stroke engine with this Wossner forged piston kit. Engineered for superior durability and optimal heat transfer, this piston is designed to withstand the demands of high-performance applications. Its advanced elliptical design ensures uniform bearing surface under heat expansion, effectively reducing localized pressure and evenly distributing thrust loads to prevent piston collapse. Manufactured to exacting standards in Germany.
Key Features:
- Forged Construction: Provides exceptional strength and durability for demanding use.
- Optimized Heat Transfer: Facilitates efficient heat dissipation from the combustion chamber to the cylinder walls, contributing to improved performance.
- Elliptical Design: Prevents localized pressure points and piston collapse by ensuring even bearing surface under heat and distributing thrust loads.
- Single-Ring Configuration: Designed to reduce friction and enhance overall engine performance.
Specifications:
- Bore: 55.95 mm
- Piston Size: 56.00 mm
- Displacement: 125 cm³
- Stroke: 54.50 mm
- Clearance: 0.05 mm
- Wossner Compression Ratio: 2-stroke
- OEM Compression Ratio: 2-stroke
- Compression Height: 29.50 mm
Component Cross-References:
- Gasket: D2043
- Lock: CW15
- Pin: WP032
- Rod: P2012
QUESTIONS? JUST ASK
Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00.
Call or email us with your make, model and year and we will check it for you before you order.
UK delivery is £4.99, or free on orders over £60. Orders ship within 3 working days, then delivery takes 2–4 business days. 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.
More answers in our FAQ.
Trade pricing available
Buying parts for your business? Apply for a 2BrosParts trade account.


