Reddit reviews Reliance Water Heater #9003542 NAT Gas Pilot Assembly
We found 2 Reddit comments about Reliance Water Heater #9003542 NAT Gas Pilot Assembly. Here are the top ones, ranked by their Reddit score.
Reliance Water Heater #9003542 NAT Gas Pilot AssemblyRELIANCE WATER HEATER COS lever handlesHigh arc spout2.2 gpm flow rate
A complete pilot light/thermocouple/ignitor assembly for an AO Smith GCV 40 101 water heater. I see plenty of references to GCV 40 200/201, but not 101.
I think this is it: https://www.amazon.com/gp/product/B000XOEZ9U/ref=ask_ql_qh_dp_hza
...but I don't know if that one is suitable for propane. edit: it's listed as being for natural gas. Still looking for a propane unit.
A thermocouple is $160?
You can probably find a universal type thermocouple and start there.
Also a quick google search leads me to this which looks looks like your pictures: https://www.amazon.com/Reliance-Water-Heater-9003542-Assembly/dp/B000XOEZ9U/ref=cm_cr_arp_d_product_top?ie=UTF8
EDIT: Top review on amazon mentions your model number, so looks like it will work.