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Riffraff Diesel Performance Inc, Engines - Supplies, Equipment & Parts, Eagle Point, OR


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Fuel Pressure Regulator "Blue Spring" Kit

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Alliant Fuel Pressure Regulator "Blue Spring" Kit (AP0086) 03-07 6.0L

Taking only 30 minutes to install the new updated Ford "Blue Spring" will increase your fuel pressure back up to where it should be from the factory. Most 6.0's see an increase of 8-10 psi of fuel pressure. The added fuel pressure will help keep the injectors from out flowing the stock fuel pump, meaning no air in the injectors, and an injector that will live much longer. Most trucks will actually quite down a little at idle, rev up a lot quicker and with the added fuel pressure, a little quicker spool up on the turbo. The kit does include all the O-Rings and hard parts to install the blue spring kit. In most cases the cover isn't required and we recommend the less expensive kit. 

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Product Reviews

Showing reviews 1-10 of 47 | Next

  1. Excellent 5 Star Review

    Posted by on Aug 9th 2018

    My fuel pressure went from about 41psi at idle up to 73-74 psi at idle. Must have mod for the 6.0. Super easy to install as well.

  2. Easy install 5 Star Review

    Posted by on Apr 27th 2018

    Installed easily and the truck idles much smoother and quieter now.

  3. Great addition 5 Star Review

    Posted by on Jan 25th 2018

    Put this in my 2003 6.0 powerstroke after installing new injectors after the originals went out. Bumped my fuel pressure from 55 to 70 psi. Great product and easy to install.

  4. Great buy! 4 Star Review

    Posted by on Jul 5th 2017

    After this install my mpg went up by 1 mile and it feels like it's shifting a little smoother now. Also got a little boost on throttle response. Makes a big difference for something that cost less than $100 bucks.

  5. Awesome 5 Star Review

    Posted by on May 15th 2017

    This kit rebuilt my 7.3 fuel regulator with the blue spring and seals perfectly. It got here fast and was shipped the day it was ordered. Thank you very much.

  6. Great Kit 5 Star Review

    Posted by on Apr 24th 2017

    This is all the proper O-Rings and gaskets to do a full rebuild. The quality is excellent and as always Riffraff was a pleasure to deal with. Thanks.

  7. Genuine parts. Everyting you need 5 Star Review

    Posted by on Apr 8th 2017

    Every O-ring you need to change the seals in your secondary fuel filter housing. Only instructions are a vague picture, but if you pay attention it's easy to see where everything goes. There is one extra round O-ring, which according to the picture is for your regulator spring cover if it doesn't use the keyhole shaped one. New copper washers for the banjo bolt have O-rings bonded to the inner edge (the old ones I took off did not).

  8. Better performance 5 Star Review

    Posted by on Mar 4th 2017

    I ordered blue spring as advertised. Followed YouTube video instructions. No problem. Truck performs better and sounds quiter.

    Would recommend to any 6.0 owner. My 2007 F250 has 150,000 mile on it.

    Buy it - buy it now!

  9. Damn 5 Star Review

    Posted by on Jan 24th 2017

    Replaced the spring thinking it would not be that big of difference. I was wrong it run smoothly on cold morning starts and truck takes of better what difference a little spring makes.

  10. Blue spring kit 5 Star Review

    Posted by on Nov 25th 2016

    Easy install, bumped up fuel pressure 5lbs.

Showing reviews 1-10 of 47 | Next