There are lots of Chinese clone 24v starters on epay quite reasonable with warranty. As you know, almost all parts in a traditional parts store are nowadays made overseas.
If I needed a starter, A brand new clone would be very tempting vs a rebuilt starter that has who knows what actually replaced? Some rebuilt are basically cleaned up with new brushes and whatever it takes to get them going again but not all internal components are changed. Quality inbetween a rebuilt and a factory reman can be hard to gauge from the outside but a new unit with all new components should be in theory more reliable.
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