When it comes to lift pumps on the 1989-1993 trucks, there is a lot of smack talk. People claim that they need to upgrade to a High Volume Lift Pump (HVLP) to support performance engines. That is not true if you use the right brand of lift pump!
Most people will replace their 30 year old failing original, with an aftermarket pump. They are surprised to find that they range 2-5 PSI fuel pressure with their new pump and then believe they made a wrong choice in pump style. Often people believe that they should have bought a HVLP and gone through the hassle of changing fuel lines etc.
We have tested all aftermarket replacement pumps for our engines and found that they are not all made the same! The one that came out on the top of the list? You guessed it. Genuine Cummins pumps.
For this case, we do not sell the cheaper pumps as we will not install it on our on trucks. If we wont use it, we wont sell it! We even use these on our 450+ HP engines and do not see below 4 psi even at WOT!
You get what you pay for. 1 needed per engine.
