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6.5L Direct Fit Lift Pump Kit

6.5L Direct Fit Lift Pump Kit

Quadstar Tuning LLC

  • $315.00
  • Save $-315

The only USA made, flow on fail, direct replacement lift pump kit for 1994+ 6.5L Turbo Diesel vehicles with the DS4 injection pump.


  • Flow on Fail Design.  If the pump ever loses power or were to fail, fuel can still flow through the housing so you aren't stranded
  • Installs as easily as replacing a stock lift pump. Will bolt directly into place with no modifications necessary and plug into factory or upgraded wiring that uses a factory style plug
  • Internal inlet screen
    • The screen is not intended to be a pre-filter. We still recommend running a pre-filter if you deleted the fuel tank sock strainer
  • Internally regulated to not exceed 15 PSI
    • Pressure will drop slightly under load but will always maintain pressure to ensure the injection pump is never starved of fuel. Depending on the temp of fuel, it's usually hovering between 9-12 psi which is exactly what we want to see.
    • See our other listings for higher flow pump upgrades if you need more flow or adjustable pressure
  • Warranty
    • 24 month warranty for part replacement only (from date of delivery)
    • Fuel contamination or any type of alteration voids the warranty. It's a diesel fuel pump, not a trash pump.

Package Includes (as pictured)

  • Lift Pump
  • Our custom mounting bracket to attach at stock on-frame location.
    • Re-use factory mounting bolts after removing stock lift pump
    • Can be used in a universal capacity if not being used on a GMT400 truck
    • The bracket is powder coated aluminum
  • Fuel Line Fittings
    • CNC Milled adapter fittings for stock fuel hard-lines
    • AN fittings for aftermarket fuel lines. Default configuration is 8AN in 6AN out 
    • Put in your order notes if you want a different configuration like stock line in and AN line out
  • 6" Wiring adapter for plug and play with stock style 2 pin weather pack plug. Also compatible with 2 pin Deustch DT.

Available Separately:

  • 1/2" or 3/8" rubber fuel hose for applications not using stock fuel lines
  • Lift pump relay wiring harness upgrade

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