• Cart

SKU #: SD-6.0AFB03-01-20-GRY MPN #: SD-6.0AFB03-01-20-GRY

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

$139.99
Get 139 points in loyalty rewards
Description
NOTE: NOT FOR SALE IN CALIFORNIA Restore proper fuel pressure and performance to your Ford F-250 / F-350 Super Duty equipped with the 6.0L Power Stroke with this upgraded Blue Spring Kit . Now available in Adjustable and Non-Adjustable options to fit your specific needs. This simple 30-minute installation can bring fuel pressure back to factory spec, with most 6.0L trucks seeing an increase of up to 10 PSI. Restoring proper fuel pressure helps prevent injectors from out-flowing the stock fuel pump, reducing the risk of aeration and significantly extending injector life. Many owners notice smoother idle, quicker throttle response, and improved turbo spool-up after installation. Choose the Option That Fits Your Build Non-Adjustable Version Pre-set to deliver improved factory-style fuel pressure Ideal for stock or mildly modified trucks Simple, reliable performance upgrade with no tuning required Adjustable Version Features an integrated adjustment screw for fine-tuning fuel pressure Perfect for trucks running larger injectors or performance modifications Allows you to compensate for spring wear over time by making quick adjustments Recommended fuel pressure setting: 55–68 PSI Upgraded Billet Spring Housing Both versions include a brand-new billet aluminum regulator housing designed to: Maintain consistent spring pressure Prevent leaks commonly seen with the factory cast aluminum housing Eliminate the common “weep” issue from the OEM unit Provide thicker, stronger billet construction for long-term durability Clean up the appearance of your factory fuel filter housing If you’re looking to protect your injectors, restore lost performance, and upgrade a known weak point on the 6.0L Power Stroke, this Blue Spring Kit delivers dependable results with the option of added adjustability for performance builds.
Select Regulator Type

Enter your zip and we'll see if installation is available.

  • Request quotes from local installers at checkout
  • Compare options and choose the best fit for your install

NOTE: NOT FOR SALE IN CALIFORNIA

Restore proper fuel pressure and performance to your Ford F-250 / F-350 Super Duty equipped with the 6.0L Power Stroke with this upgraded Blue Spring Kit . Now available in Adjustable and Non-Adjustable options to fit your specific needs.

This simple 30-minute installation can bring fuel pressure back to factory spec, with most 6.0L trucks seeing an increase of up to 10 PSI. Restoring proper fuel pressure helps prevent injectors from out-flowing the stock fuel pump, reducing the risk of aeration and significantly extending injector life. Many owners notice smoother idle, quicker throttle response, and improved turbo spool-up after installation.

Choose the Option That Fits Your Build

Non-Adjustable Version

  • Pre-set to deliver improved factory-style fuel pressure
  • Ideal for stock or mildly modified trucks
  • Simple, reliable performance upgrade with no tuning required

Adjustable Version

  • Features an integrated adjustment screw for fine-tuning fuel pressure
  • Perfect for trucks running larger injectors or performance modifications
  • Allows you to compensate for spring wear over time by making quick adjustments
  • Recommended fuel pressure setting: 55–68 PSI

Upgraded Billet Spring Housing

Both versions include a brand-new billet aluminum regulator housing designed to:

  • Maintain consistent spring pressure
  • Prevent leaks commonly seen with the factory cast aluminum housing
  • Eliminate the common “weep” issue from the OEM unit
  • Provide thicker, stronger billet construction for long-term durability
  • Clean up the appearance of your factory fuel filter housing

If you’re looking to protect your injectors, restore lost performance, and upgrade a known weak point on the 6.0L Power Stroke, this Blue Spring Kit delivers dependable results with the option of added adjustability for performance builds.

NOT LEGAL FOR SALE OR USE IN CALIFORNIA
Vehicle Fitment
2003-2007 Ford 6.0L Powerstroke
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
FEATURES & BENEFITS:
  • Anodized in Sinister Gray
  • CNC Machined from T6-6061 billet aluminum 
  • Laser etched Sinister Diesel logo 
  • New "Blue Spring" 
  • New Gaskets 
  • Adjustable fuel pressure so you can fine tune your performance 
  • Restores lost fuel pressure from a worn spring 
  • Helps save Injectors from low fuel pressure
About Sinister Diesel

Sinister stands for everything diesel and they have made a name for themselves manufacturing some of the highest quality diesel engine components in the industry. The Sinister Diesel brand was born out of an idea from the founders while working on one of their own trucks. What if they started their own diesel performance business manufacturing and selling high quality air intake, fuel, and engine components? That idea transpired into the Sinisterl Diesel we know today. In order to make sure that when you popped the hood, you could easily distinguish a œSinister branded part from other companies, nearly everything they manufacture is coated in their trademarked œSinister Blue. Whether you drive a Cummins, Powerstroke, or Duramax, they can outfit your entire truck with cold air intakes, fuel tank sumps, oil filtration, regulated fuel return kits, and so much more. If you're looking for quality performance parts at a great price, look no further than Sinister!