ProX Piston Kit SX125 07-26/EXC125 01-16
The ProX Piston Kit SX125 07-26/EXC125 01-16 from ProX is listed to fit 13 models from 5 makes (KTM, GasGas, Husqvarna and others), including KTM 125 EXC 2001-2017, KTM 125 SX 2001-2027 and KTM 125 SXS 2000-2008. It is part of our engine piston kit range.
- Part numbers: one per option, listed under Specifications
- Size: 53.94 mm, 53.95 mm, 53.96 mm, 53.97 mm
- Fits KTM: 125 EXC 2001-2017, 125 SX 2001-2027, 125 SXS 2000-2008, 125 XC-W 2017-2027
- Fits GasGas: EC 125 (EC125) 2025, MC 125 (MC125) 2007-2009, 2021-2027, TXT 125 (TXT125) 2022-2023
- Fits Husqvarna: TC 125 (TC125) 2014-2027, TE 125 (TE125) 2011-2012, 2014-2016, 2025-2027, TX 125 (TX125) 2017-2019
- Fits Beta: RR 125 2T 2020-2026, RR 125 2T ENDURO 2018-2019
- Category: Engine Parts › Engine Top End › Engine Piston Kit
Specifications
| Brand | ProX |
|---|---|
| Manufacturer part numbers | 01.6226.A, 01.6226.B, 01.6226.C, 01.6226.D |
Fits these bikes
This ProX part is listed as fitting 13 models. Check your model and year below.
| Make | Model | Years |
|---|---|---|
| Beta | RR 125 2T | 2020-2026 |
| Beta | RR 125 2T ENDURO | 2018-2019 |
| GasGas | EC 125 (EC125) | 2025 |
| GasGas | MC 125 (MC125) | 2007-2009, 2021-2027 |
| GasGas | TXT 125 (TXT125) | 2022-2023 |
| Husaberg | TE 125 (TE125) | 2012-2014 |
| Husqvarna | TC 125 (TC125) | 2014-2027 |
| Husqvarna | TE 125 (TE125) | 2011-2012, 2014-2016, 2025-2027 |
| Husqvarna | TX 125 (TX125) | 2017-2019 |
| KTM | 125 EXC | 2001-2017 |
| KTM | 125 SX | 2001-2027 |
| KTM | 125 SXS | 2000-2008 |
| KTM | 125 XC-W | 2017-2027 |
Product details
ProX pistons are machined with precision on modern CNC equipment from the same low-expansion, low-friction alloy that every major Japanese engine manufacturer relies on. A ProX Piston Kit is a premium way to replace your original piston, with kits offered for motorcycles, scooters, mopeds, ATVs and personal watercraft, among other machines.
Key features
- Performance coatings: most ProX pistons are coated to perform better. The OEM-style tin coating helps a new piston wear in, while the advanced black skirt coating also helps with wear-in and then cuts friction over time. This specially formulated blend of materials lifts overall performance.
- Nicasil and plated cylinders: made for the latest Nicasil-plated cylinders, with a wide choice of standard sizes plus A, B, C, D and other oversizes.
- Sleeved cylinders: kits come in standard sizes and a range of oversizes up to 2mm. Those extra oversizes let a cylinder be re-bored several times, greatly extending its life.
- Complete kit: ready to fit straight from the box, with all the parts listed below.
What's included
- Piston
- Ring set
- Gudgeon pin
- Circlips
Questions about this part
Will the ProX Piston Kit SX125 07-26/EXC125 01-16 fit my bike?
It is listed for 13 models, including Beta RR 125 2T (2020-2026), Beta RR 125 2T ENDURO (2018-2019), GasGas EC 125 (2025), GasGas MC 125 (2007-2009, 2021-2027). The full list is in the "Fits these bikes" table on this page, and the fit check next to the price tells you straight away for your saved bike.
What is the part number?
Each option has its own manufacturer part number, listed under Specifications on this page. Our stock code is 120077-A.
How much is delivery?
Order before 3pm for same day dispatch. UK Next Day delivery is £7.99, and free on orders of £100 or more. Pre 12:00 (£9.99) and Pre 10:00 (£14.99) upgrades are charged at any order value.
Can I return it?
Yes. You can return it within 30 days of delivery for a refund. You pay the return postage unless the item is faulty, damaged or wrong, in which case we cover it. See our Returns page for how. Returns