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I have this carburator kit for over 35 years.Dont remember were I got it from. Its in a brown box with # 2910-737-2520 printed on end of it.Also M38 is written on the side.Just wondered if anyone knows if it is orginal military or repro even that long ago?All parts are in 3 different clear plastic packets.Thanks in advance.

2510-737-2520 is in fact the military stocked service kit for the M38's YS637S carb. The Carter # for the kit is 1A65. I would strongly advise you not use any rubber parts in the kit. Buy new rubber parts that will be compatable with modern fuels. Also inspect any aged gaskets and check for brittleness.







Rubber parts are underlined in red.

Thanks for the info on the carb kit. Now I know what I have for sure.I will take your advice and not use the kit.Will just hold on to it for a little while longer.