Namura Standard Bore Piston Kit Size A (39.46mm) for KTM 50 SX 2009-2023 39.5mm
Namura Standard Bore Piston Kit Size A (39.46mm) for KTM 50 SX 2009-2023 39.5mm
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Standard Bore Piston Kit 39.46mm for KTM
This Namura standard bore piston kit size A (39.46mm) is designed for KTM 50 SX models from 2009 to 2023.
Overview
This Namura standard bore piston kit for KTM 50 SX provides a direct replacement piston for the 2009‑2023 50 SX, featuring a 39.46mm bore size (size A) for reliable two‑stroke performance.
Built For Performance
- Cast from high‑silicon aluminum for durability
- Precision‑machined to 39.46mm diameter (size A)
- Includes piston rings and wrist pin
- Designed to match OEM KTM specifications
Fits These Machines
- for KTM 50 SX 2009
- for KTM 50 SX 2010
- for KTM 50 SX 2011
- for KTM 50 SX 2012
- for KTM 50 SX 2013
- for KTM 50 SX 2014
- for KTM 50 SX 2015
- for KTM 50 SX 2016
- for KTM 50 SX 2017
- for KTM 50 SX 2018
- for KTM 50 SX 2019
- for KTM 50 SX 2020
- for KTM 50 SX 2021
- for KTM 50 SX 2022
- for KTM 50 SX 2023
On-The-Job Use
- Top‑end rebuild for KTM 50 SX mini dirt bikes
- Motocross racing and trail riding for youth riders
- Maintaining compression and power for competitive use
Specs At A Glance
| Bore | 39.46mm (Size A) |
| Type | Standard Bore Piston Kit |
| Includes | Piston, rings, wrist pin |
Good To Know
Q: Does this kit include a piston clip? A: The kit includes the piston, rings, and wrist pin, but circlips may need to be reused from the old piston or purchased separately.
Q: What is the difference between Size A and B? A: Size A is the standard bore diameter; Size B is slightly larger for reboring cylinders that have minor wear.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.
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