just wondering what the usual life of a lift pump is? had one replaced about 8 months ago, it was done at cummins southern plains and not sure exactly what they put back in the truck whether it be O.E. or just a replacement made by another company.

 

I had mine replaced on my 04 at 50,000 (failure under warrenty) and they updated it from the side of the block to a in-tank unit. That was 4 years and a 100,000 miles ago

 

depends 2 weeks to 3yrs