SKU: 56621152785

Sinister Diesel Blue Spring Kit with Adjustable Billet Spring Housing 03-07 6.0L Ford Powerstroke

Sale price$116.99 Regular price$129.99
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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16

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Description

Sinister Diesel Blue Spring Kit with Adjustable Billet Spring Housing 03-07 6.0L Ford PowerstrokeAn easy 30 minute install of this updated "Blue Spring" in your Powerstroke can increase your fuel pressure back to factory, helping your truck feel reguvenated. Most 6. 0's see an increase of 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

An easy 30 minute install of this updated "Blue Spring" in your Powerstroke can increase your fuel pressure back to factory, helping your truck feel reguvenated. Most 6.0's see an increase of 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 rebuild the fuel pressure housing.

Another major bonus is that this block has an adjuster screw in it. This will allow you to bump pressure up a little for big injectors. Or after the spring settles after years of abuse, just loosen up the jam nut, and run the adjuster screw in a turn or two to get your fuel pressure back to where you want it. Everybody has their own opinion of fuel pressure in a 6.0L Powerstroke, why not choose for yourself, we recommend setting it between 55-68psi.

This kit also comes with a Brand New Billet Aluminum housing to keep the regulator sprig set and to prevent leaks from the housing. This is a much thicker, stronger billet piece than the factory Cast Aluminum spring housing. The factory unit is known to leak or "weep" fuel from the sides. This kit will also help clean up the look of the factory filter housing as well.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 56621152785

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RaymondFRevalee
Charlottesville, US
★★★★★ 4
Not bad so far
Size: Small, Color: Light Yellow
mixed feelings about the quality... only worn/washed once and there are some dangling threads which I had to cut off which might lead to further degradation of longevity etc. The fit is a bit snug between S and M, I chose small regarding the closest fit to my chest size but it's ok. The fabric is thin so if you are a guy that doesn't mind showing off your form and fitness this shirt is flattering. The fabric is texture, light and thin so there is comfort regarding the lightness of wearing it. One could go a size larger for looser fit and more comfort but I actually like the tighter fit.
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Reviewed in the United States on June 9, 2025
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Sir Pain
Louisville, US
★★★★★ 5
Perfect summer shirt...
Size: 3X-Large, Color: White
I am one that ALWAYS look at the 1 star reviews first. When I brought this shirt I did not... I brought 4 more in different colors. I have now looked at the 1 star reviews and I have to disagree.. Most say they are too thin. When it's 90 - 100 degrees outside this shirt is PERFECT.. It is airy and relaxing. I found it to be also perfect in size. I came back to order more but they don't have a few colors I am looking for. This worked for me all the way around..
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Reviewed in the United States on August 23, 2025
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Frugalliving
Natrona Heights, US
★★★★★ 5
Flattering and classy
Size: Medium, Color: White
Thin but I love it that way. Is not overly wrinkled after ironing but wrinkles terribly when washed. Fits well not tight or too loose. Buy your exact size. The white is very classy.
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Reviewed in the United States on February 15, 2025
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Jack
Bozeman, US
★★★★★ 1
Very Thin, low quality, runs small
Size: Medium, Color: Light Green
Way too thin. It's completely see-through, and the fit runs small. I forgot to return it and wound up giving it away to Goodwill.
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Reviewed in the United States on July 27, 2025
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Jamie Fabre
Louisville, US
★★★★★ 3
For the money
Size: Medium, Color: White
Nice shirt but pretty see through. Worked for what we needed it too. Washed well and will use again next summer.
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Reviewed in the United States on September 2, 2025

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