Carter Fuel Systems Universal Electric Fuel Pump 12V (P4070)

These pumps are ridiculously bad. In case you think I am maligning a decent parts manufacturer because I slapped a pump into an old clapped out junker with crappy wiring or bad grounds or couldn’t figure out the oddball electrical connectors, no, that’s not the case–I did everything right, installed it below the tank far from the engine bay, used oversized wire, triple checked everything, making sure the grounds were excellent and the voltage at the pump was within spec and the ground was at 0.0 ohms, and still this pump lasted about an hour. I drove around the neighborhood, was pleased with the pressure (~4.5 PSI), but the next day started the car up and noticed the pump was a bit noisier than it had been the day before, and I could hear it clearly above the idling engine. Now the pressure was 6 PSI, and after about ten minutes it dropped off to less than 1PSI then down to zero and the car died at idle a minute later. I let everything cool off, checked and double checked everything, and restarted it. The same thing happened. I even measured the temperature of the pump, to make sure it wasn’t heating up. I repeated this process a few times, then removed it, put in another brand new identical pump I’d bought for a backup, and the second pump was even worse, making about 1 PSI. The car would starve for fuel at anything over idle. The second pump was quieter than the first, but still sounded “off,” not at all healthy. I can’t be sure, but I suspect Carter pulled the old trick of moving manufacturing overseas to a factory with inadequate quality control, and are simply getting people to buy these pumps based on familiarity and brand recognition because they are technically OEM for several models. I would be surprised if Carter are in business in five years if they keep building parts like this. I would use anything rather than one of these pumps again, Holley, Mr. Gasket, Facet, or even some no-name knockoff. This is the worst pump I have ever seen, worse than garbage because it almost sort of wants to work, and if you didn’t have a pressure gauge you’d be left scratching your head. FYI, I installed a Facet pump and everything works fine.

Good price, built in bypass, but it does run a little hot . Will see how long it works. so far , works great!

Great pump. Put on a Triumph spitfire and it works good and is pretty quiet.

Nice affordable option for replacing mechanical pumps on older engines that need help running on ethanol. Cold starts with a dry carb bowl are much easier than before. It is noisy though. That’s my only complaint.

I needed a fuel pump after an engine swap and bought this pump. It is working perfectly. The install was as expected. It has a good mount with rubber grommets, but is still a bit obvious when it is running which is sort of a good thing as the key is turned on, and then is not obtrusive with the engine running. It really does the job. I hope it has a long life which is too early to know at this point.

Tengo un año usándola en mi camioneta chevrolet carburada con motor v8 7.4 L y estoy más que contento con ella. Puso fin a todos mis problemas con la bomba mecánica original, eliminó el problema de vapor lock que tenía al subir pendientes prolongadas y/o en condiciones de calor extremo. Además el flujo es constante y no por pulsos, lo que hace que el motor se sienta mucho más parejo y suave. Es cierto que es un poco ruidosa, pero no molesta y con el motor andando casi no se escucha. No necesita regulador de presión y proporcina un alto flujo ideal para motores de gran cilindraje. El arnes de cableado, si se instala correctamente, funciona bien y no se bota o safa, pero hay que meter empujar los hules con fuerza hasta el fondo, el hule de los capuchones es poco flexible pero al final con la fuerza suficiente, el hule cederá y entrará sobre las “bases blancas”, al final no olvide poner el clip para mayor seguridad. No use ningún tipo de sellador en las conexiones roscadas para las mangueras y no presentan fugas, pero para lograrlo deben ser apretadas con torque bastante considerable para que efectivamente queden estancas. Procure encender el auto por lo menos una ves al mes para evitar que la bomba se vacíe, en lo ideal debe permanecer permanentemente llena de combustible para evitar oxidación interna.

In the product information it says ,it is a diesel pump, which led me to believe i ordered the wrong pump.
I called the manufacturer (Carter) and i was told that it is in-fact a gasoline pump.
That doesnt mean that it wont work with diesel fuel, but if it was for diesel only , you can not put gasoline through it.
So it is a gasoline pump.
Works excellent on my boat, in place of the diaphragm pump.