PISTON KIT 99-25 YZ250 66.40 A, PROX 01.2321.A RM250 03-12
ProX piston kit with 66.40mm bore. This kit features a low-expansion, low-friction piston alloy, the same used by major Japanese engine manufacturers. ProX pistons are precision machined on CNC equipment. This piston kit is a first-class replacement for the original piston in your Motorcycle, Scooter, Moped, ATV, or Personal Watercraft. Coated for ultimate performance, the OEM style Tin coating assists the wear-in process, and a new skirt coating reduces friction after wear-in, increasing performance. Includes piston size: 66.35mm. Manufacturer part number: 01.2321.A. Weight: 296g.
- SKU
- 56-W742.A.PX
- Brand
- Pro-X Racing
- Availability
- In Stock (2)
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
- 257589
FULL DESCRIPTION
ProX Piston Kit 66.40mm Bore
This ProX Piston Kit is engineered for optimal performance and durability. Featuring a 66.40mm bore and a 66.35mm piston size, this kit is crafted using state-of-the-art CNC equipment. The alloy used is the same low-expansion, low-friction material favored by major Japanese engine manufacturers, ensuring a high-quality replacement for your original piston.
Key Features:
- Precision machined using advanced CNC equipment.
- Utilizes a low-expansion, low-friction piston alloy.
- Designed as a premium replacement for original pistons.
- Includes advanced skirt coating to aid the initial wear-in process and reduce friction.
- Coating is a proprietary blend designed to enhance performance.
This ProX piston kit offers a first-class solution for various powersports applications, enhancing both the break-in period and long-term running efficiency of your engine.
Trade pricing available
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