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Sinister Diesel Blue Spring Kit with Adjustable Billet Spring Housing - Fuel Regulator Kit - Ford Blue Spring Kit 6.0 Powerstroke – Fast Install For 2003-2007 Ford Powerstroke 6.0L

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$114.99

$ 51 .99 $51.99

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About this item

  • IMPROVED PERFORMANCE: The Ford Powerstroke 6.0L 2003-2007 models can’t live up to their full potential thanks to the low quality factory parts that keeps holding them back. Sinister Diesel 6.0 Blue Spring Kit Upgrade helps you increase the full pressure safely and effectively up to 15% to give your ride a boost in performance you never thought possible.
  • NO MORE LEAKS: Our 2003-2007 Ford Powerstroke 6.0L Blue Spring Kit comes with a high quality Adjustable Billet Spring Housing with an adjuster screw built-in to allow you to keep the regulator firmly in place and prevent leakage to maximize the lifespan and performance of your ride!
  • THE PERFECT FIT: Sinister Diesel Blue Spring Kit with Adjustable Billet Spring Housing made specifically for 2003 – 2007 Ford Powerstroke 6.0L Diesel Models to provide a safe, fast and reliable install to boost performance and improve fuel economy. It comes with everything you need to install it including O-Rings and hard parts to rebuild the fuel pressure housing
  • CONVENIENT & RELIABLE: The heavy duty Adjustable Billet Spring Housing has an adjuster screw built-in to it that lets you seamlessly adjust the pressure for injectors to provide you with boost your want! Even if the spring starts wearing out after a few years, give the adjuster screw a few spins to get your fuel pressure back.
  • THE SINISTER DIFFERENCE: At Sinister Diesel, we only use the highest quality materials that are tested for endurance and reliability provide long lasting use. Why? Because we prioritize the satisfaction of our customers above all else which is why we only offer the finest products to our customers. Each purchase is backed by our Customer Satisfaction Warranty so that you can buy with confidence knowing you’re making a risk free investment.
  • Replaces Ford Part# 3C3Z-9T517-AG



Product Description

Restore Lost Fuel Pressure with Sinister Diesel's Blue Spring Kit. Made in U.S.A.
Increase fuel pressure 10 psi, blue spring kit diagram
faster turbo spool up, installed picture of blue spring kit
50 state legal
Design, machining, welding, fabrication
Sintor Truck driving fast in the dirt

Scott McCullough
Reviewed in the United States on August 5, 2024
Worked/performs great and easy install
The carpenter
Reviewed in the United States on December 27, 2024
It does just what it says it does but like others have said the 4 bolts are not long enough. Had to go buy longer bolts and than washers and what not to make it fit. Than a dremel to make the washers rounder.
Azrealomega
Reviewed in the United States on November 14, 2024
No logo or adjustments, the spring isn't even blue. But it has a sinister deisel sticker in the box. Im confused about this, and would like clarification.
Samantha
Reviewed in the United States on June 6, 2022
Product is great but when adjusting the screw please make sure not to bottom out or over screw it. It will eat up the brass coupler where the blue spring inserts and push it all the way in to the fuel bowel. My gauge kept acting up after installing this kit. I went and disassembled the kit and found out the adjuster screw is limited to adjustment as the brass coupler can only sit flush with the housing and can’t be pushed back with the blue spring (obviously). Hope this helps anyone having issues.
jay
Reviewed in the United States on July 23, 2021
Was easy to install, easily adjustable pressure, no leaks or problems with bolts too "short" . Some people should stay away from wrenching, they are to heavy handed and they make righty tighty a righty loosy. Bad installs come from wanna be mechanics who should have had their wives do it for them.
Jacob Corea
Reviewed in the United States on January 3, 2019
Nice product fit well and looks nice. Word to the wise tho check your fuel pressure after putting this on because mine was not set from the factor. I installed a 100 psi gauge when I put this new adjustable regulator on and when I fired it up the gauge was pegged. But backed it off a little and now it’s perfect. Tough spot to get to with the upper radiator hose in the way but turning the pressure up and down is as simple as turning the adjustment screw then locking down with the jam nut.
Irving Salinas
Reviewed in the United States on August 6, 2018
It works amazing! My stock setup was running 30 psi after i installed it it jumped to 100psi. Had to turn it down to a middle 80psi.
Dean C.
Reviewed in the United States on July 22, 2018
Very nice fuel pressure regulator. Installed very easily and it adjusted great. It’s a way better product than the factory part.And no more replacing Springs when they were out.