Hi I seem to be going around in circles with this, my car has a starter rated at 1.4kw with 10 teeth but I see a lot advertised on the bay rated 1.1kw. So will the 1.1 be man enough to turn the engine, also some are saying that the 10 & 12 toothed ones are interchangeable. I have my doubts about this because the 12 tooth one has a bigger diameter cog and to my mind when its powered towards the starter ring it would not engage. Yes? Many thanks.