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Driven Diesel 7.3L OBS Regulated Return Fuel System Kit

This item requires Vehicle Fitment, please select Vehicle first!
OR if you know the Part Number you need, select from Options below.
Part Number: DD-73FS-OBS-RRK-V3
Availability: In Stock
Instructions: (Adobe Reader required)
Price: $649.95
CARB EO #: D-872-3
NOW CARB Approved!!! - CARB EO# : D-872-3 (94-97 F250/F350/E250/E350 ONLY!)

The Driven Diesel "OBS" Fuel Bowl Delete Regulated Return Kit is a significant upgrade for the 94-97 Powerstroke trucks. This kit eliminates the factory mechanical fuel pump and filter bowl assemblies from the engine valley, includes larger than stock fuel lines for improved fuel flow to the injectors and provides a high quality aftermarket fuel pressure regulator to properly manage fuel system pressure. For customers doing aftermarket high pressure oil pump systems, custom turbocharger systems or other high performance modifications, this kit also opens up a bunch of room in the engine valley. The use of this kit with an appropriate electric fuel pump (not included) and proper aftermarket fuel filtration will result in quicker starting and smoother engine operation. This kit will also support significantly more power upgrades, depending on the fuel pump and plumbing setup used.

94-97 E-SERIES VAN OWNERS: This kit is NOT a direct bolt-in for the van. Some customers have modified our kit or their van to use this product. While we don't believe that the modifications are significant, we are not aware of the specifics of the modifications and we can NOT provide support for fitting this kit to an E-Series Van. Thank You for your understanding in this matter.

NOTE: Installation of this kit eliminates the stock mechanical fuel pump and engine valley filter. This kit does NOT include the required ELECTRIC FUEL PUMP or proper POST PUMP FILTER to complete the fuel system. See the RELATED PRODUCTS section below for some other components to help you complete your fuel system build.

You may also want to look at our COMPLETE OBS ELECTRIC FUEL SYSTEM CONVERSION KIT, which includes this Regulated Return Kit as well as the pump, filters and other components necessary to complete an electric fuel system installation. This kit has enough fuel pump to support up to 180cc injectors.

If you are doing performance work and will be running fuel injectors that are 200cc or larger, coupling one of our HIGH VOLUME FUEL DELIVERY KITS with this Regulated Return Kit will get your fuel system where you need it.

The most commonly reported results from the installation of an Driven Diesel Regulated Return Kit are:

• Quicker Starting
• Quieter Engine Operation
• Improved Throttle Response
• Increased Power Output
• Increased Fuel Economy

Below are some of the key features of the Driven Diesel OBS Regulated Return Kits:

CARB Approved - CARB EO# : D-872-3 (94-97 F250/F350/E250/E350 ONLY!)
• Fits with Both Stock and Aftermarket Turbocharger Applications
• Compatible with "Terminator" Twin HPOP Setups
• High Quality Fuelab Bypass Fuel Pressure Regulator Made in the USA!
• 3/8" CNC Bent S.S. Hard Line Used in High Temperature and Tight Radius Locations Made in the USA!
• High Quality 3/8" S.S. Braided Teflon Hoses with BLACK Protective Covering Made in the USA!
• Stainless Steel Regulator Mounting Bracket Made in the USA!
• Driven Diesel Liquid Filled Fuel Pressure Gauge
• All Kits Feed Front Ports (away from Turbo Heat) and Return from Rear Ports
• Complete Kit with All Necessary Parts and Detailed COLOR Instructions

Made in the USA! Denotes Items that are 100% MADE IN THE USA!


We make every attempt possible to source and use as much U.S. made product/material as we possibly long as doing so doesn't sacrifice the quality of the final product. We can't always control where every component of one of our products comes from, but you count on us to keep looking for ways to increase the % of American Made parts and materials in the products that we produce.

Customer Reviews

(5.00)stars out of 5
# of Ratings: 3
1. on 1/27/2018, said:
5 stars out of 5
Great upgrade. Truck runs better and throttle response is amazing. Very clean install. You will need an extra fuel line from the pump. I added a swivel fitting to the driver side rear port and did not have to remove the turbo or up pipes.
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2. on 5/20/2013, said:
5 stars out of 5
Makes the 1995 7.3 come alive. Not a bad install if your turbo comes off easily. All parts go together easily. Used the OBS pump harness and the wiring was easy and flawless.
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Frequently Asked Questions

Driven Diesel 7.3L OBS Regulated Return Fuel System Kit fits the following vehicle(s):

  • 1995 Ford E250/350 Van 7.3L
  • 1996 Ford E250/350 Van 7.3L
  • 1997 Ford E250/350 Van 7.3L
  • 1998 Ford E250/350 Van 7.3L
  • 1994 Ford F250/350 OBS 7.3L
  • 1995 Ford F250/350 OBS 7.3L
  • 1996 Ford F250/350 OBS 7.3L
  • 1997 Ford F250/350 OBS 7.3L