First, one last bit of (double) cross-referencing by the factory on the sender part number
The Willys Motors Parts Price List dated November 15, 1955 indicates that 207415 was replaced by P/N K-717484. The "K-" prefix was used on Kaiser-Frazer 226 engine parts (among other areas) that moved into the Willys Motors parts system during 1954-55. Parts Price Lists issued after this point still listed the 207415 with notations that it could be mixed with Willys Motors P/N 717484. In the last Parts Price List specific to Kaiser-Frazer part numbers, dated June 19, 1961 there is a notation on the 207415 line of the book to use the 800807 sender unit instead. These notations fill in blanks (you may find the 717484 at swap meets, if we every have swap meets again) and confirms suitability for the Willys 800807. You might even check with the parts department at your (soon to be) Stellarus dealer (the deal for French car maker PSA to purchase Fiat and Fiat Chrysler America (somewhat humorusly known as FCA, which were the initials of the Ferengi Commerce Association in the post 1985 STAR TREK television triology) with finalization expected in Spring 2021. Check to see if the Jeep stores can still order it because of its various Willys Motors applications.
Second, the often ignored Parts Price lists issued by Kaiser-Frazer and Willys Motors can be a gold mine for car owners today as the exercise with the oil pressure sender demonstrates. Here is a list of dates I have identified from covers or title pages of these books:
If anyone is interested in the Parts Price Lists useful for their car, please e-mail me, listing the specific car(s) you have
