Here you can find spare parts for the Sachs 503 AB engine, also known as the wide-bore engine due to its large rectangular cylinder. The engine is the one with the version without catalytic converter. The engine without fan was equipped with the 2-speed automatic transmission of version B. All spare parts that are still available, such as the centrifugal clutches, the freewheel or seals, bearings and oil seals and, last but not least, the starter clutch is listed here. These Fichtel & Sachs engines were installed in Pony GTX, Alpa Turbo, Hercules, KTM and many other mopeds.
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Collection only possible with online purchase and appointment.