PISTON KIT 1990 KX125 57.00, WOSSNER 8106D100 KAWASAKI MX
4.1 Trustpilot 99.9% positive on eBay
Delivery to United States 5–8 business days
Spread the cost with 
Wossner forged piston kit 57.00mm bore +1.00 oversize for Kawasaki KX125 1990. Features include forged piston construction for durability and thermal resistance, efficient heat dissipation, elliptical design for uniform expansion and balanced thrust load, and is specifically engineered for 2-stroke engines. Manufactured in Germany. Specifications: Bore Size 57.00mm (+1.00 oversize), Actual Bore 56.94mm, Compression Height 29.50mm, Clearance 0.06mm, Stroke 50.60mm, Displacement 125 cm³. Piston part number 8106D100.
- SKU
- 56-W589+100.WO
- Brand
- Wossner
- Availability
- In Stock (1)
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 57.00mm
- Variant Id
- 257013
FULL DESCRIPTION
Wossner Forged Piston Kit - 57.00mm Bore
This Wossner forged piston kit features a +1.00mm oversize bore, measuring an actual 56.94mm, designed for enhanced 2-stroke engine performance. Constructed from high-strength forged aluminum, this piston is built for exceptional durability and efficient heat transfer. Its elliptical design is engineered to support even load distribution during thermal expansion, significantly reducing the risk of localized stress and structural failure. Precision manufactured in Germany, this piston ensures reliable performance.
Key Features:
- Forged piston construction provides excellent durability and thermal resistance.
- Engineered for efficient heat dissipation from the combustion chamber to the cylinder wall.
- Elliptical design promotes uniform expansion and balanced thrust load.
- Specifically designed and engineered for 2-stroke engines.
- Manufactured in Germany for quality assurance.
Specifications:
- Bore Size: 57.00mm (+1.00 oversize)
- Actual Bore: 56.94mm
- Compression Height: 29.50mm
- Clearance: 0.06mm
- Stroke: 50.60mm
- Displacement: 125 cm³
- Wossner Compression Ratio: 2-stroke
- OEM Compression Ratio: 2-stroke
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.