PISTON KIT 08-23 TM85 47.90mm, WOSSNER 8332DA TM FORGED, 10166 (8285DA)
4.1 Trustpilot 99.9% positive on eBay
Free UK delivery 2–4 business days
Spread the cost with 
18+, T&Cs apply
Wossner forged piston kit 8285DA features a 47.90mm standard bore and is designed for two-stroke engines. Manufactured in Germany, this piston is engineered for optimal strength, efficient heat transfer, and uniform load distribution. Its elliptical design helps prevent piston collapse under high-performance conditions. Specifications include a bore size of 47.90mm, 85cm³ displacement, 47.00mm stroke, 0.05mm clearance, and 24.00mm compression height. This is a direct OEM replacement and is easy to install.
- SKU
- 56-W4957.A.WO
- Brand
- Wossner
- Availability
- In Stock (3)
Fitments (25)
| Make | Model | Year |
|---|---|---|
| TM | CROSS 85 | 2008 |
| TM | CROSS 85 | 2009 |
| TM | CROSS 85 | 2010 |
| TM | CROSS 85 | 2011 |
| TM | CROSS 85 | 2012 |
| TM | CROSS 85 | 2013 |
| TM | CROSS 85 | 2014 |
| TM | CROSS 85 | 2015 |
| TM | CROSS 85 | 2016 |
| TM | CROSS 85 | 2017 |
| TM | CROSS 85 | 2018 |
| TM | CROSS 85 | 2019 |
| TM | CROSS 85 | 2020 |
| TM | MX 85 | 2008 |
| TM | MX 85 | 2009 |
| TM | MX 85 | 2010 |
| TM | MX 85 | 2011 |
| TM | MX 85 | 2012 |
| TM | MX 85 | 2013 |
| TM | TM 85 | 2008 |
| TM | TM 85 | 2009 |
| TM | TM 85 | 2010 |
| TM | TM 85 | 2011 |
| TM | TM 85 | 2012 |
| TM | TM 85 | 2013 |
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 47.9mm
- Variant Id
- 256463
FULL DESCRIPTION
Wossner Forged Piston Kit - 47.90mm Standard Bore
This Wossner forged piston kit is engineered for high performance and durability in two-stroke engines. Manufactured in Germany, it features a 47.90mm standard bore and is designed to provide optimal strength, efficient heat transfer, and uniform load distribution.
The piston's unique elliptical design helps prevent piston collapse under demanding operating conditions, ensuring reliable performance when you need it most. As a direct OEM replacement, installation is designed to be straightforward, though professional installation is recommended if you are unsure.
Key Features:
- Forged Construction: Provides exceptional strength and reliability for longevity.
- Elliptical Design: Ensures even expansion and uniform load distribution, preventing collapse.
- Efficient Heat Transfer: Optimized for two-stroke engine cooling.
- German Engineering: Manufactured to high-quality standards in Germany.
- Direct OEM Replacement: Designed for a seamless fit and function.
- Easy Installation: Professional installation recommended for best results.
Specifications:
- Bore Size: 47.90mm (Standard)
- Stroke: 47.00mm
- Clearance: 0.05mm
- Compression Height: 24.00mm
QUESTIONS? JUST ASK
Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00.
Check the fitment table on this page against your make, model and year. Not sure? Call or email us 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.