Skip to Main Content

75psi Regulator Spring for FASS

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-FASS-75PSI
Availability: In Stock
Price: $5.95
This custom regulator spring will run a 125G FASS Titanium Series pump at 75psi. This pressure is required in Ford 7.3L and 6.0L applications, in order for the engine mounted fuel pressure regulator to be able to properly manage the overall fuel system pressure.

IMPORTANT NOTE : This regulator spring is ONLY recommended for use with FASS 125G Pumps that are configured to run at 55psi from the factory. While all other FASS 55psi pumps could use this spring for increased pressure, FASS feels that this will result in premature pump failure and will not honor the warranty!

If your FASS pump is not a GREY Titanium Series unit, do NOT order this kit. If you have the newer BLACK colored Signature Series pump, you need more than just the spring. CLICK HERE for the correct kit for the Black Signature Series Pumps.

Customer Reviews

(5.00)stars out of 5
# of Ratings: 3
1. on 2/21/2018, said:
5 stars out of 5
Added this to my new Fass pump in conjunction to the regulated fuel bowl delete kit. love the kick my 7.3 is putting out now
Was this comment helpful?
(2 people found this comment helpful, 1 did not)
2. on 10/10/2017, said:
5 stars out of 5
Just installed this thing on my 05 F250. And wow.. combined with just the MileageXS tune from my Superchips Flashpaq F5 1845 it now has some crazy snap at all ends of the power band. Going to try it out on the hot tune tomorrow. I can only imagine the insane gain it’ll give me. Mind you I’m just running a MBRP turbo back exhaust with stock cat and a custom coated banks intercooler with honed out intake elbow to eliminate airflow turbulence and volant intake and obviously the FASS Titanium Water/Air preparator with sump kit. This beastly thing now is able to go from fifteen to 70 in just a few seconds and yet still getting better mileage than a big block ever will. Torque It to Launch It🤘
Was this comment helpful?
(0 people found this comment helpful, 0 did not)
3. on 1/20/2015, said:
5 stars out of 5
This is a must have piece for 7.3 Ford with a Fass pump. Very easy to install.
Was this comment helpful?
(0 people found this comment helpful, 0 did not)
Showing comments 1-3 of 3
Frequently Asked Questions

75psi Regulator Spring for FASS fits the following vehicle(s):

  • 2003 Ford Excursion 6.0L
  • 2004 Ford Excursion 6.0L
  • 2005 Ford Excursion 6.0L
  • 2000 Ford Excursion 7.3L
  • 2001 Ford Excursion 7.3L
  • 2002 Ford Excursion 7.3L
  • 2003 Ford Excursion 7.3L
  • 2003 Ford F250/350 Super Duty 6.0L
  • 2004 Ford F250/350 Super Duty 6.0L
  • 2005 Ford F250/350 Super Duty 6.0L
  • 2006 Ford F250/350 Super Duty 6.0L
  • 2007 Ford F250/350 Super Duty 6.0L
  • 1999 Ford F250/350 Super Duty 7.3L
  • 1999.5 Ford F250/350 Super Duty 7.3L
  • 2000 Ford F250/350 Super Duty 7.3L
  • 2001 Ford F250/350 Super Duty 7.3L
  • 2002 Ford F250/350 Super Duty 7.3L
  • 2003 Ford F250/350 Super Duty 7.3L
  • 2003 Ford F450 Super Duty 6.0L
  • 2004 Ford F450 Super Duty 6.0L
  • 2005 Ford F450 Super Duty 6.0L
  • 2006 Ford F450 Super Duty 6.0L
  • 2007 Ford F450 Super Duty 6.0L
  • 1999 Ford F450 Super Duty 7.3L
  • 1999.5 Ford F450 Super Duty 7.3L
  • 2000 Ford F450 Super Duty 7.3L
  • 2001 Ford F450 Super Duty 7.3L
  • 2002 Ford F450 Super Duty 7.3L
  • 2003 Ford F450 Super Duty 7.3L
  • 2003 Ford F550 Super Duty 6.0L
  • 2004 Ford F550 Super Duty 6.0L
  • 2005 Ford F550 Super Duty 6.0L
  • 2006 Ford F550 Super Duty 6.0L
  • 2007 Ford F550 Super Duty 6.0L
  • 1999 Ford F550 Super Duty 7.3L
  • 1999.5 Ford F550 Super Duty 7.3L
  • 2000 Ford F550 Super Duty 7.3L
  • 2001 Ford F550 Super Duty 7.3L
  • 2002 Ford F550 Super Duty 7.3L
  • 2003 Ford F550 Super Duty 7.3L