Part Number for a factory CHT probe an a turbo-Arrow??

Part Number for a factory CHT probe an a turbo-Arrow??

Does anyone know the part number for the factory CHT probe in a turbo-Arrow (TCM TSIO-360-FB)? It's the probe mounted in Cylinder #1. This is the factory original probe.

I would like to know the Piper P/N, the TCM P/N and the Alcor P/N if possible.....I can't find this information anywhere.

Anyone know??

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Re: Part Number for a factory CHT probe an a turbo-Arrow??

OK....I found some part numbers:

CHT probe 550-549 (Stewart-Warner PN 333B, discontinued)
Replacement CHT probe 553-673 (Rochester PN 3080-00038).

See SSL #406 for replacement part numbers for senders and gauges.

I suspect that my factory CHT sender is defective. The gauge reads zero all the time, but occasionally shows a flicker of activity that makes me suspect the gauge is not totally dead. I assume I have the original S-W gauge and CHT probe, but do not know for sure.

If we replace the sender, do we need to recalibrate the existing gauge? Has anyone been through this with some advice?

Does anyone know the correct resistance reading for the existing CHT probe, to check if it is working or not?

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Re: Part Number for a factory CHT probe an a turbo-Arrow??

I have new/unused Stewart-Warner CHT guages with new probes on Ebay for sale, these are the direct replacements for Arrow and Cherokee gauges.  Do a search on 'cluster gauge cht piper' and you'll find it.

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Re: Part Number for a factory CHT probe an a turbo-Arrow??

Thanks for the info. I was having problems with my factory original CHT gauge back in January.

We checked the resistance of the probe, and it tested OK...so the probe was good. Now the whole system works again, so it must have been a harness problem (as it usually is) that was corrected by reconnecting the wires.

Thanks for the info. Good luck selling your spare parts.

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