I find that Rotax 912ULS CHT Sensors, part 965531, cost $195 each. Has anyone found a more economical replacement?

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I would think there has to be a cheaper alternative out there. Some of the prices Rotax charge for small parts is insane! I have a Rotax 912ULS too and hate being ripped off for parts too. I can somewhat understand it with a certified engine but not with the uncertified version. I believe they are (were) made by VDO. i haven't needed to source an alternate yet but this might be worth investigating.

VDO 323-801-010-001D

https://www.rotax-owner.com/en/912-914-technical-questions/6091-rot...

https://www.ctflier.com/topic/4897-oil-temp-sensor/

https://www.aircraftspruce.com/catalog/inpages/flightline13-16029.php

If it works, let me know!

With my kitfox I just rebuilt mine.  Don’t remember the part number offhand but I ordered from digikey 

https://www.digikey.com/en/products/detail/amphenol-advanced-sensor...

I just heated up and cleaned out old, soldered wires to sensor and potted back in 

I should mention that my kitfox was a 93 912ul and I believe it may have had different temp coefficients

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