PISTON KIT 05-21 YZ125 54.00 A, WOSSNER 8160DA YAMAHA MX 1C3-11631-03-D0
4.1 Trustpilot 99.9% positive on eBay
Free UK delivery 2–4 business days
Spread the cost with 
18+, T&Cs apply
Wossner 8160DA Piston Kit 54.00MM Bore 53.95STD. Wossner forged pistons offer superior strength and design, engineered for optimal combustion chamber heat transfer to cylinder walls. The elliptical design ensures a uniform bearing surface under heat expansion, preventing localized pressure and distributing thrust loads evenly to avoid piston collapse. Made in Germany. Includes Lock P/N CW15, Pin P/N WP032, Ring Set P/N RSB5400, and Rod P/N P2018. Display (cm3) 125, Hub stroke (mm) 54.50, Clearance (mm) 0.05, Compression height (mm) 28.00. Cross reference numbers: 1C3-11631-03-D0, 09104853, 845M05400.
- SKU
- 56-W845.A.WO
- Brand
- Wossner
- Availability
- In Stock (1)
Fitments (24)
| Make | Model | Year |
|---|---|---|
| FANTIC | XE 125 | 2021 |
| FANTIC | XE 125 | 2022 |
| FANTIC | XX 125 | 2021 |
| YAMAHA | YZ 125 | 2004 |
| YAMAHA | YZ 125 | 2005 |
| YAMAHA | YZ 125 | 2006 |
| YAMAHA | YZ 125 | 2007 |
| YAMAHA | YZ 125 | 2008 |
| YAMAHA | YZ 125 | 2009 |
| YAMAHA | YZ 125 | 2010 |
| YAMAHA | YZ 125 | 2011 |
| YAMAHA | YZ 125 | 2012 |
| YAMAHA | YZ 125 | 2013 |
| YAMAHA | YZ 125 | 2014 |
| YAMAHA | YZ 125 | 2015 |
| YAMAHA | YZ 125 | 2016 |
| YAMAHA | YZ 125 | 2017 |
| YAMAHA | YZ 125 | 2018 |
| YAMAHA | YZ 125 | 2019 |
| YAMAHA | YZ 125 | 2020 |
| YAMAHA | YZ 125 | 2021 |
| YAMAHA | YZ 125X | 2020 |
| YAMAHA | YZ 125X | 2021 |
| YAMAHA | YZ 125X | 2022 |
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 54.00mm
- Variant Id
- 258015
FULL DESCRIPTION
Wossner 54.00MM Piston Kit
Upgrade your engine with a Wossner forged piston kit, designed for superior strength and performance.
This high-quality piston kit features an elliptical design that ensures a more uniform bearing surface, even under extreme heat expansion. This engineering reduces localized pressure and distributes thrust loads evenly, preventing piston collapse and providing a more reliable engine performance.
Wossner pistons are meticulously engineered to optimize combustion chamber heat transfer to the cylinder walls, contributing to efficient engine operation.
Key Features:
- Superior strength and advanced design of Wossner forged pistons.
- Engineered for optimal combustion chamber heat transfer.
- Elliptical design for uniform bearing surfaces and even thrust load distribution.
- Prevents piston collapse for enhanced durability.
- Precision manufactured in Germany.
- Standard bore size: 54.00MM.
- Compression height: 28.00mm.
- Clearance: 0.05mm.
- Weight: 182 grams.
This piston kit is compatible with various models including:
- YZ125 (2005 - 2021)
- YZ 125 X (2020 - 2021)
Cross Reference Numbers:
- 1C3-11631-03-D0
- 09104853
- 845M05400
- 1C3-11631-03-C0
- 1C3-11631-03-A0
- 1C3-11631-03-B0
- 5NY-11611-00-00
- 1C3-11633-00-00
- 93450-16068-00
- Wossner 8160DA
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.