I just got a 2003 Ram 2500 with the 5.9L cummins which I love. I am getting ready to replace the factory lift pump and was wondering where the factory lift pump is located on this truck (behind the fuel filter or in the tank)? Thanks.

 

I just got a 2003 Ram 2500 with the 5.9L cummins which I love. I was wondering where the lift pump is located on this truck? Thanks.

 

In the tank! They dont supply the needed fuel for any mods and be reliable at it. I would suggest looking into an after market fuel pump that does away with this pump such as an air dog if the money allows.

 

Yeh thats my plan is to upgrade to the raptor 150 with a 2 micron filter set-up.

 

who makes the raptor 150? i hear about it alot...could i get a lil bit o info on it?

 

Its made by pureflow same people who make airdog.

Raptor high-end Diesel Fuel Pumps, AirDog - Fuel/Air Seperation and Filtration System For Diesel Engines, Raptor Fuel Pumps, Pureflow

 

Not in the tank if the pump is factory yet! It would be on the back of the fuel filter housing if it is. Lil black looking cylinder with the fuel line coming in the bottom and electrical connection on the top.

 

03 to 04.5 on filter housing 05 to ?? in tank

 

If im correct i believe the 2003 came with an in tank lift pump, but i do remember hearing something around that year with the stock lift pumps being recalled and replaced with ones behind the filter. Maybe one of the other guys could help clarify.

Regardless, when replacing the lift pump with aftermarket you have 2 options when it comes to fuel delivery
1. drop the fuel tank
2. pull the bed (better option w/proper equipment)
because either way your going to have to get to your fuel tank

 

The '03's originally came from the factory with the lift pump mounted to the back of the fuel filter housing. Now if that pump has ever been replaced by the dealership, the replacement would have been put in the tank as Dodge no does not offer the original-style lift pump.

All lift pumps were moved into the tank when the Cummins "600" debuted in 2004.5.