Recently acquired a 67 Kaiser M-725 ambulance. Serial number 10412. Fuel pump has been removed and replaced with wrong one. Original was of course the dual action. Part number was 944561-RB. Any ideas for where to find one or a good replacement? Thanks for any help. As I embark upon restoring this fine vehicle I'm sure there will be many more questions. Also needs a rear step/attendant's seat. Anyway, thanks for any help.