1994-1997 7.3 OBS E-Fuel Kit – $1,100


For immediate service, call the shop at 410 392 3262.

Below is what you will receive in this kit!

Complete kit 3-obs-fuel-system-diagram  HOSES  REGULATOR SETUP 2024 regulator-bracket FUEL PUMP REPLACEMENT 2024 v2 FRONT OF HEAD LINES 2024 Extra's Bag 2024 ELECTRICAL ASSEMBLY 2024  wire-loom-wire-ties PRE-PUMP MARTY GAUGE filter-options

Common Kit Modifications

Bosch Pump Option california-damper CA Plug Installed T4 Mod Kit Bag

Other modifications include Pre-Pump Solutions kits and single tank conversion kits!

Click HERE to Order   410.392.3262

The below video is an overview video that is currently up to date on our kit as of 1/29/2024.

The below video is an unboxing video that is currently up to date on our kit as of 9/6/2022.

In the below video I show you how easy it is to change the fuel filters on a 5+ year old kit.

This complete Old Body Style Kit is essentially “electric fuel” for 1994-1997 7.3L PowerStrokes. This kit takes no short cuts on delivering the most complete setup on the market. From our seamless integration at the selector valve to the billet adapter we use to tie into the factory rear feed lines, this kit is second to none. You will not have to remove the OEM turbo to install this kit!


  • Walbro GSL392 that will handle up to 250cc/100% injectors. If you have trouble keeping fuel pressure with larger injectors, it is usually due to the selector valve or clogged pick up tubes.
  • Selector valve fittings that allow you to seamlessly integrate our fuel system onto the factory selector valve.
  • Complete parker 801 push-lok hose. All kits include enough hose to fit a crew cab long bed pick-up truck.
  • A stainless steel, laser cut bracket with stainless steel hardware.
  • All ORB/JIC/Banjo connections for leak free operation/easy installation.
  • Every fitting needed to install the kit, plus extra’s. Complete fuel bowl delete, replaces all factory fuel system lines except the rear two. If you would like to replace these lines we sell them separately. If you have a T4 kit and would like to replace them with our old, push-lok setup, please specify when ordering.
  • Video links provided for full installation.
  • Feeds rear of factory heads.
  • Factory rear fuel lines stay intact.


  • Turbo compressor discharge O-ring and new banjo washers included for leak free operation.
  • We supply extra fitting’s, padded p-clamps and hardware to use as needed.
  • Average install time is just 5 hours!
  • Complete wiring harness utilizing;
    -10 ga. or 14 ga. power wire (depending on relay position).
    -30/40/50 amp relay.
    -15/20 Amp reset-able circuit breaker.
    -All Molex terminal ends.


  • Walbro GSL392 pumps are not warrant-able for use with diesel, however we have an extremely low failure rate and offer discounted replacement pumps.
  • Marty’s Diesel handles the warranty on the bracket, hardware, fittings, etc.
  • Shipping is included in the price of the kit to any of the lower 48 states.
  • All sales are final.

Installation Instructions:

  • Please follow this link. OBS E-Fuel Installation instructions.
  • IF you decide to install fittings into the heads, be EXTREMELY careful when installing the NPT fittings. They are to be installed as tight as you can by hand and then ONLY tightened 1.5-3 more turns. I would HIGHLY recommend making sure the ports are clean and free of debris. Marty’s diesel is NOT responsible in any way if you crack the head from improper installation.

Related products you may wish to purchase.

SPARE PUMP $75 or $125 prepump-solutions-kit Selector valve replacement-ipr-pigtail FUEL TANK SENDING UNIT