PISTON 73-81 MAICO 400 78.00, FORGED WOSSNER 8047D100 KIT
4.1 Trustpilot 99.9% positive on eBay
Delivery to United States 5–8 business days
Spread the cost with
Wossner 78.00mm forged piston kit is designed for Maico 400 models from 1973 to 1981. Engineered for strength and precision, this piston ensures efficient heat transfer to the cylinder walls, providing uniform expansion and reducing localized pressure. The elliptical design distributes thrust loads evenly, preventing piston collapse. Manufactured in Germany, it meets high-quality standards for reliable performance. Features include Wossner forged piston for superior strength and durability, optimized heat transfer for improved combustion efficiency, elliptical design for uniform bearing surface and reduced localized pressure, precision-engineered to prevent piston collapse, and Made in Germany. Specifications: Bore Size 78.00mm (77.92mm), Oversize +1.00mm, Displacement 386cc, Stroke 83.00mm, Clearance 0.08mm, Compression Ratio 2-stroke, Compression Height 41.70mm, Lock Part Number CW18, Pin Part Number WP039, Ring Set Part Number RSC7800. Theoretical Weight Not specified.
- SKU
- 56-W142+1.00
- Brand
- Wossner
- Availability
- In Stock (3)
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 78mm
- Variant Id
- 254688
FULL DESCRIPTION
Wossner 78.00mm Forged Piston Kit for Maico 400 (1973-1981)
Enhance the performance and durability of your Maico 400 motorcycle with this premium Wossner forged piston kit. Engineered in Germany, this piston is designed for superior strength and precise operation, ensuring optimal combustion and longevity.
The Wossner forged piston kit features an advanced design that promotes efficient heat transfer to the cylinder walls. This results in uniform expansion and reduces localized pressure, contributing to a more consistent and reliable engine performance. Its carefully crafted elliptical shape effectively distributes thrust loads, preventing piston collapse and ensuring a stable bearing surface under demanding conditions.
Key Features:
- Wossner Forged Piston: Offers exceptional strength and resilience for high-performance applications.
- Optimized Heat Transfer: Promotes uniform expansion and efficient heat dissipation for improved combustion.
- Elliptical Design: Ensures even bearing surface and reduces localized pressure for extended piston life.
- Piston Collapse Prevention: Precision engineering minimizes the risk of piston failure.
- German Manufacturing: Built to exacting standards for guaranteed quality and reliability.
Specifications:
- Bore Size: 78.00mm (nominal, actual 77.92mm)
- Oversize: +1.00mm
- Displacement: 386cc
- Stroke: 83.00mm
- Clearance: 0.08mm
- Compression Ratio: 2-stroke
- Compression Height: 41.70mm
- Lock Part Number: CW18
- Pin Part Number: WP039
- Ring Set Part Number: RSC7800
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.


