ELECTRIC FUEL PUMP MYSTERY

[Guest Jersey Jalopy]

There are many great automotive minds out there. Perhaps one of them can solve a mystery for me. Here is a automotive mystery for you. I need help identifying a NOS AC electric fuel pump. The numbers on the box are EP18W & 6415729. I can't find these numbers in any of my AC fuel pump catalogs. The only thing that I know of that uses 24 volts are military vehicles.

I don't know much about air planes. Do airplanes use 24 volts??? Is it possible that this pump is for a airplane???

Any help will be greatly appreciated.

Bill

[Guest Commodore]

Some airplanes did and do use 24 volt DC systems and yes it can by for an airplane.

[joe_padavano]

More likely it is from a military vehicle, which also used 24V. GM built many trucks for the military.

[Guest Jersey Jalopy]

Thank you both for the info. I assumed it was for a military vehicle or a airplane. If anyone has a AC fuel pump catalog that identifies exactly what this 24 volt pump fits I would appreciate you letting me know. The pump number is EP18W and the other number on the box is 6415729. If anyone is interested in buying it let me know. Regards Bill

[NTX5467]

The "EP18W" number is the AC-Delco part number. The "6415729" is the GM part number. In many cases, the "military vehicle" parts books were apart and separate from the normal GM parts books. Only one I've ever seen was for the earlier 1980s Chevy K-Blazer vehicles. Quite neat as it showed the many special equipment parts illustrations. I think those were on 48V systems, though. Later investigations revealed that the military stuff was totally apart and separate from the normal GM parts situations. I think the only reason we got the books that year was that the Army had purchased a fleet of vehicles, stationed at Fort Hood, TX, so it was possible that we might encounter some of them in the DFW area later on. They were all 6.2L diesel V-8s. Interesting thing was the final approval and acceptance of the fleet hinged upon the correctness of the camo paint on the vehicles!

Enjoy!

NTX5467