Vertex Top End Piston Kit SX125 16-22 (RE)
Vertex Top End Piston Kit SX125 16-22 (RE)
The Vertex Top End Piston Kit SX125 16-22 (RE) from Vertex is listed to fit 5 models from Husqvarna, KTM and GasGas, including Husqvarna TC 125 (TC125) 2016-2022 and Husqvarna TX 125 (TX125) 2017-2019. It is part of our engine top end kit range.
- Part numbers: one per option, listed under Specifications
- Size: 53.94 mm, 53.95 mm, 53.96 mm, 53.97 mm
- Fits Husqvarna: TC 125 (TC125) 2016-2022, TX 125 (TX125) 2017-2019
- Fits KTM: 125 SX 2016-2022, 125 XC-W 2023-2024
- Fits GasGas: MC 125 (MC125) 2021-2023
- Category: Engine Parts › Engine Top End › Engine Top End Kit
Specifications
| Brand | Vertex |
|---|---|
| Manufacturer part numbers | 8VTK24243A-3, 8VTK24243B-3, 8VTK24243C-3, 8VTK24243D-3 |
Fits these bikes
This Vertex part is listed as fitting 5 models. Check your model and year below.
| Make | Model | Years |
|---|---|---|
| GasGas | MC 125 (MC125) | 2021-2023 |
| Husqvarna | TC 125 (TC125) | 2016-2022 |
| Husqvarna | TX 125 (TX125) | 2017-2019 |
| KTM | 125 SX | 2016-2022 |
| KTM | 125 XC-W | 2023-2024 |
Product details
A Vertex top end kit gives you the parts you need to rebuild the top end of your engine in one go, made with precision and performance in mind.
Key features
- Heat treated: Every piston goes through T-5 hardening followed by a tempering cycle for added strength.
- Advanced forgings: Vertex forged pistons combine DLC-coated wrist pins with new T-box forgings, giving strength and performance even at the highest compression ratios.
- Skirt coating: A molybdenum disulphide coating on the piston skirt shortens break-in time and cuts wear.
- Nitride coating: Helps the piston last longer and stay reliable.
- Exact OEM replacement: Made to match original equipment manufacturer specifications so everything fits correctly.
- KTM factory-approved: The replica KTM 2-stroke pistons are supplied to KTM at factory level, so compatibility is top tier.
- Two-stroke pistons: Gravity cast from aluminium alloy with an 18% silicon content, making them light yet very strong.
What's included
- Piston
- Piston pin
- Wrist pin bearing (where applicable)
- Piston rings
- Circlips
- Head O-rings
- Base gaskets
Questions about this part
Will the Vertex Top End Piston Kit SX125 16-22 (RE) fit my bike?
It is listed for 5 models, including GasGas MC 125 (2021-2023), Husqvarna TC 125 (2016-2022), Husqvarna TX 125 (2017-2019), KTM 125 SX (2016-2022). 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 160823-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