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 Sep 16 - Sep 21

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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
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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]
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SKU: 56621152785

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4.5 ★★★★★
Based on 12 reviews
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Michelle
West Palm Beach, US
★★★★★ 4
Pieces chewed off
Color: white & green
My Aussiedoodle loves it. I throw it down the hallway, it bounces crazy, and he chases it. The only complaint is that he can't chew much of the ball part. So now I have to have it put away and brought out for special playtime.
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Reviewed in the United States on April 9, 2026
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D.G.
Birmingham, US
★★★★★ 5
Great ball!
Color: Ultra, Size: Large
Our puppy loves this ball. It has held up well so far, it’s about 2 weeks now of large breed pup play. It’s been outside for the last week, rain or shine, still in working order. Not as big as I thought it would be though. No squeak, bounces well. Thick rubber like material, that can be depressed when biting down.
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Reviewed in the United States on May 14, 2026
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Verified Purchase
AnaC
San Leandro, US
★★★★★ 5
Great Quality and durability
Color: Ultra, Size: Large
I have a teething puppy and this is the only ball that has outlasted the rest!! Big chewer and still bounces and no tears! Keeps him entertained for hours!! Sturdy, solid, good quality and value!
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Reviewed in the United States on February 12, 2026
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Verified Purchase
Dana Kurtz
New York, US
★★★★★ 5
Durable, even for a Great Dane!
Color: Ultra, Size: XXL
I've bought many tennis ball sized ChuckIt balls in the past (for medium sized dogs we've owned), so when we knew we were going to be babysitting our daughter's Great Dane, I bought a bigger one for her. The 4" is perfect for her! She plays catch with it, but also likes to gnaw on it. It holds up great!
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Reviewed in the United States on April 19, 2026
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Ol' Hippie
Lake Worth, US
★★★★★ 5
Another great product from Chuckit!
Color: Ultra, Size: XL
Exactly the high quality that I've come to expect from Chuckit! The plastic/rubber used in their products is extremely tough yet gives enough that it's hard to actually pierce the it and tear apart. We have had Chuckit! Sticks and Balls with launcher for years and love them all. This particular ball is pretty big so my 45 pound pit mix struggles to pick it up but that's part of the fun for him. My 85 pound pit mix can pick it up no problem. The only "complaint" is that the two of them have been having so much fun with their new ball, they have already knocked something over and broke it. 😁
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Reviewed in the United States on March 26, 2026

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