cant see a problem with replacing it with a FL-11753. the only thing i can see different between them is the -1 version is the solder on type and the other is a quick connect type that uses a slide on connector. but you can still solder the wires on.
looks like they only carry the version with out the -1 because you can use it for both applications and it saves them stocking 2 items which are nearly the same.
its like the saying goes "kill 2 birds with 1 stone"
before installing it just make sure the diodes are on the same way (they should be)
here is a link for you to check the differences yourself
http://www.marcospecialties.com/storeitems.asp?txtkey=FL-11753-1