PISTON KIT 99-25 YZ250 66.40, WISECO 804M06640B PRO-LITE
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Wiseco 804M06640B Pro-Lite Piston Assembly. Bore size 66.40mm. Features innovative forging design and piston skirt for maximum horsepower and torque. Includes lightweight wrist pins for faster revs and quicker throttle response. Requires ceramic composite cylinder sleeving or replating for oversizes. Top-end bearing available separately (part no. B1003). Package includes one 66.4mm piston, two 2614CD rings, two CW18 circlips, and one S508 wrist pin. Sold by application and bore size.
- SKU
- 56-W742.B.WI
- Brand
- Wiseco
- Availability
- In Stock (1)
Fitments (51)
| Make | Model | Year |
|---|---|---|
| FANTIC | XX 250 | 2022 |
| FANTIC | XX 250 | 2023 |
| FANTIC | XX 250 | 2024 |
| FANTIC | XX 250 | 2025 |
| SUZUKI | RM 250 | 2003 |
| SUZUKI | RM 250 | 2004 |
| SUZUKI | RM 250 | 2005 |
| SUZUKI | RM 250 | 2006 |
| SUZUKI | RM 250 | 2007 |
| SUZUKI | RM 250 | 2008 |
| SUZUKI | RM 250 | 2009 |
| SUZUKI | RM 250 | 2010 |
| SUZUKI | RM 250 | 2011 |
| SUZUKI | RM 250 | 2012 |
| YAMAHA | YZ 250 | 1999 |
| YAMAHA | YZ 250 | 2000 |
| YAMAHA | YZ 250 | 2001 |
| YAMAHA | YZ 250 | 2002 |
| YAMAHA | YZ 250 | 2003 |
| YAMAHA | YZ 250 | 2004 |
| YAMAHA | YZ 250 | 2005 |
| YAMAHA | YZ 250 | 2006 |
| YAMAHA | YZ 250 | 2007 |
| YAMAHA | YZ 250 | 2008 |
| YAMAHA | YZ 250 | 2009 |
| YAMAHA | YZ 250 | 2010 |
| YAMAHA | YZ 250 | 2011 |
| YAMAHA | YZ 250 | 2012 |
| YAMAHA | YZ 250 | 2013 |
| YAMAHA | YZ 250 | 2014 |
| YAMAHA | YZ 250 | 2015 |
| YAMAHA | YZ 250 | 2016 |
| YAMAHA | YZ 250 | 2017 |
| YAMAHA | YZ 250 | 2018 |
| YAMAHA | YZ 250 | 2019 |
| YAMAHA | YZ 250 | 2020 |
| YAMAHA | YZ 250 | 2021 |
| YAMAHA | YZ 250 | 2022 |
| YAMAHA | YZ 250 | 2023 |
| YAMAHA | YZ 250 | 2024 |
| YAMAHA | YZ 250 | 2025 |
| YAMAHA | YZ 250X | 2016 |
| YAMAHA | YZ 250X | 2017 |
| YAMAHA | YZ 250X | 2018 |
| YAMAHA | YZ 250X | 2019 |
| YAMAHA | YZ 250X | 2020 |
| YAMAHA | YZ 250X | 2021 |
| YAMAHA | YZ 250X | 2022 |
| YAMAHA | YZ 250X | 2023 |
| YAMAHA | YZ 250X | 2024 |
| YAMAHA | YZ 250X | 2025 |
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 66.40mm
- Variant Id
- 257601
FULL DESCRIPTION
Wiseco Pro-Lite Piston Kit 66.40mm for Yamaha YZ250 and Fantic XX 250
Enhance your motorcycle's performance with the Wiseco Pro-Lite Piston Kit. Engineered for durability, longevity, and increased horsepower, this piston assembly is a superior upgrade for your engine.
Key Features:
- Innovative Forging Design: Features an advanced forging design and piston skirt for maximum horsepower and torque gains.
- Lightweight Construction: Includes lightweight wrist pins to enable faster revving and quicker throttle response.
- High-Quality Components: Comes with a 66.4mm piston, two rings (part no. 2614CD), two circlips (part no. CW18), and one wrist pin (part no. S508).
- Application Specific: Pistons, rings, and kits are sold by application and bore size. Ensure you know your standard bore size to order the correct standard or oversize piston.
- Durability: Designed for robust performance and extended engine life.
Note: Ceramic composite-cylinder sleeving or replating is required for oversizes. A top-end bearing is available separately (part no. B1003).
QUESTIONS? JUST ASK
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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
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