PISTON KIT 94-00 KTM125 54.25, PROX 01.6219.B
4.1 Trustpilot 99.9% positive on eBay
Free UK delivery 2–4 business days
Spread the cost with 18+, T&Cs apply
2-stroke piston kit 54.25mm bore. Includes piston rings, wrist pin, and circlips. Precision machined on CNC equipment with a low-expansion, low-friction piston alloy. Features OEM-style tin coating for break-in assistance. Replacement parts: Piston Rings 02.6218, Piston Pin 04.1545, Piston Clips 05.1510. Manufacturer part number 01.6219.B.
- SKU
- 56-W740.B.PX
- Brand
- Pro-X Racing
- Availability
- In Stock (2)
Fitments (37)
| Make | Model | Year |
|---|---|---|
| KTM | 125 EGS | 1994 |
| KTM | 125 EGS | 1995 |
| KTM | 125 EGS | 1996 |
| KTM | 125 EGS | 1997 |
| KTM | 125 EXC | 1994 |
| KTM | 125 EXC | 1995 |
| KTM | 125 EXC | 1996 |
| KTM | 125 EXC | 1997 |
| KTM | 125 EXC | 1998 |
| KTM | 125 EXC | 1999 |
| KTM | 125 EXC | 2000 |
| KTM | 125 EXC | 2001 |
| KTM | 125 EXC | 2002 |
| KTM | 125 EXC | 2003 |
| KTM | 125 EXC | 2004 |
| KTM | 125 EXC | 2005 |
| KTM | 125 EXC | 2006 |
| KTM | 125 EXC | 2007 |
| KTM | 125 EXC | 2008 |
| KTM | 125 EXC | 2009 |
| KTM | 125 EXC | 2010 |
| KTM | 125 EXC | 2011 |
| KTM | 125 EXC | 2012 |
| KTM | 125 EXC | 2013 |
| KTM | 125 EXC | 2014 |
| KTM | 125 EXC | 2015 |
| KTM | 125 GS | 1994 |
| KTM | 125 GS | 1995 |
| KTM | 125 GS | 1996 |
| KTM | 125 GS | 1997 |
| KTM | 125 SX | 1994 |
| KTM | 125 SX | 1995 |
| KTM | 125 SX | 1996 |
| KTM | 125 SX | 1997 |
| KTM | 125 SX | 1998 |
| KTM | 125 SX | 1999 |
| KTM | 125 SX | 2000 |
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 54.25mm
- Variant Id
- 257570
FULL DESCRIPTION
ProX Piston Kit - 54.25mm Bore
This ProX Piston Kit is designed for high-performance replacements and includes everything you need for a seamless installation. Each kit comes complete with piston rings, wrist pin, and circlips.
ProX pistons are manufactured with precision on advanced CNC equipment. They utilize the same low-expansion, low-friction aluminum alloy trusted by major Japanese engine manufacturers. To aid in the crucial break-in period, these pistons feature an OEM-style tin coating.
Key Components Included:
- Piston
- Piston Rings
- Wrist Pin
- Circlips
Replacement parts are also available:
- Piston Rings: 02.6218
- Piston Pin: 04.1545
- Piston Clips: 05.1510
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.


