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The perfect fit: sinister diesel blue spring kit with billet spring housing made specifically for 2003 – 2007 Ford Powerstroke 6.
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. It comes with everything you need to install it including O-Rings and hard parts to rebuild the fuel pressure housing.


Increase fuel pressure for increased performance. Equivalent to factory part 3c3z-9t517-ag perfect for stock or modified trucks. The 6. 0 blue spring kit includes all the gaskets, seals, bolts, spring, and regulator housing needed for installation.
Increases the life of fuel injectors too. This fuel regulator kit includes a detailed installation video link included in packaging with step by step instructions for the blue spring upgrade. The 6. 0 blue spring kit is a common upgrade because it increases injector life, increases drive-ability, and gives smoother power delivery.

2️⃣ fits ford 6. 0 powerstroke f250, f350, 2005, f550 model years 2003, 2007, 2006, 2004, f450, Perfect for stock or modified trucks. 5️⃣package including: blue spring upgrade+ fuel pressure regulator housing+4*rubber o-ring seals+ 3*orifice seals+4*screws.



Service: 100% satisfaction guarantee, parts, If you have any issues with the Fuel Regulator Kit, simply contact customer service for troubleshooting help, replacement, or refund.
Function: this 6. 0 blue spring upgrade kit can help prevent low fuel pressure that may lead to injector failure. Application: this fuel regulator kit fits for 2003, 2005, 2007 6. 0 powerstroke f250, 2006, f350, 2004, f450, f550 F-Super Duty models.

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.
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. 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.
1. Ford
#ad
Ford 3C3Z-9T517-AG Fuel Pressure Regulator Kit F-Super Duty 6.0 All 3C3Z9T517AG
#adFord #ad - Package dimensions: 2. 032 l x 22. 86 h x 17. 78 w centimeters. Direct fit. Fit type: Universal Fit. Genuine OEM.More information #ad
Brand | Ford #ad |
Manufacturer | Ford #ad |
Height | 7 Inches |
Length | 8 Inches |
Width | 4 Inches |
Part Number | 3C3Z-9T517-AG |
Model | 3C3Z-9T517-AG |
Warranty | Ford Limited Warranty |
More information #ad
2. Sinister Diesel
#ad
Fuel Regulator Kit, Ford Blue Spring Kit 6.0 Powerstroke – Fast Install For 2003-2007 Ford Powerstroke 6.0L, Sinister Diesel Blue Spring Kit with Billet Spring Housing
#adSinister Diesel #ad - The sinister difference: at sinister diesel, we only use the highest quality materials that are tested for endurance and reliability provide long lasting use. 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.The perfect fit: sinister diesel blue spring kit with billet spring housing made specifically for 2003 – 2007 Ford Powerstroke 6.
More information #ad
0l diesel models to provide a safe, fast and reliable install to boost performance and improve fuel economy. 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. 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. It comes with everything you need to install it including O-Rings and hard parts to rebuild the fuel pressure housing.
Brand | Sinister Diesel #ad |
Manufacturer | SINISTER MFG #ad |
Height | 4 Inches |
Length | 9 Inches |
Width | 5 Inches |
Part Number | SINSDFUELBLK60 |
Model | SINSDFUELBLK60 |
Warranty | Manufacturer Warrranty |
More information #ad
3. ExcelFu
#ad
F350, F550- Replaces 3C3Z-9T517-AG Fuel Pressure Regulator Kit, F450, 6.0 Blue Spring Kit Upgrade,Ford Blue Spring Kit 6.0 Powerstroke Fits 2003 2004 2005 2006 2007 F250
#adExcelFu #ad - Package including: blue spring upgrade+ fuel pressure regulator housing+4*rubber o-ring seals+ 3*orifice seals+4*screws. Compatibility: the fuel regulator kit fit for 2003 2004 2005 2006 Ford 6. 0l powerstroke f250, f350, f450, F550.More information #ad
Easy installation: complete kit with all accessories for installation, few minutes done. Functions of the 6. 0 blue spring kit upgrade :increase fuel pressure 10-15psi, increases fuel injector life of your Ford 6. 0 powerstroke. Replace part #: ford part 3C3Z-9T517-AG.Brand | ExcelFu #ad |
Manufacturer | ExcelFu #ad |
More information #ad
4. AA Ignition
#ad
3C3Z9T517AG, 2005, 2007-Replaces 3C3Z-9T517-AG, 6.0 Blue Spring Kit Upgrade, Compatible with Ford Trucks, Blue Spring Kit 6.0 Powerstroke F250, F450, F550 2003, 2004, 2006, F350, Fuel Regulator Kit
#adAA Ignition #ad - Easy to install. This upgrade will increase the fuel pressure 10-15psi on your 6. 0 powerstoke. Compatible with ford 6. 0l powerstroke trucks - f250, f550 model years 2003, 2006, F450, 2004, f350, 2005, 2007.Increase fuel pressure for increased performance. Equivalent to factory part 3c3z-9t517-ag perfect for stock or modified trucks. The 6. 0 blue spring kit includes all the gaskets, seals, bolts, spring, and regulator housing needed for installation.
More information #ad
Complete kit with everything needed for installation on your 6. 0 powerstroke: blue spring upgrade, 4 rubber o-ring seals, 4 screws, 3 orifice seals, fuel pressure regulator housing. Increases the life of fuel injectors too. This fuel regulator kit includes a detailed installation video link included in packaging with step by step instructions for the blue spring upgrade. The 6. 0 blue spring kit is a common upgrade because it increases injector life, increases drive-ability, and gives smoother power delivery.
Brand | AA Ignition #ad |
Manufacturer | AA Ignition #ad |
Part Number | GWA109 |
Model | 5841847321 |
Warranty | Lifetime Warranty |
More information #ad
5. LEIMO KPARTS
#ad
Fits Ford Blue Spring Kit 6.0 Powerstroke F250, F350, 2005, 2007- Replaces 3C3Z-9T517-AG, 2004, 2006, 3C3Z9T517AG, F450, F550 2003, 6.0 Blue Spring Kit Upgrade,fuel pressure Regulator Kit
#adLEIMO KPARTS #ad - 4️⃣easy installation: complete kit with all accessories for installation, few minutes done. 1️⃣ 6. 0l blue spring upgrade kit fuel pressure regulator Kit; Replace part #: Ford part 3C3Z-9T517-AG.2️⃣ fits ford 6. 0 powerstroke f250, f350, 2005, f550 model years 2003, 2007, 2006, 2004, f450, Perfect for stock or modified trucks. 5️⃣package including: blue spring upgrade+ fuel pressure regulator housing+4*rubber o-ring seals+ 3*orifice seals+4*screws.
More information #ad
3️⃣the 6. 0 blue spring kit is a common upgrade because it increases injector life, increases drive-ability, and gives smoother power delivery. This upgrade will increase the fuel pressure 10-15psi on your 6. 0 powerstoke.Brand | LEIMO KPARTS #ad |
Manufacturer | Ford OEM #ad |
Part Number | 3C3Z-9T517-AG |
Model | 3C3Z-9T517-AG |
More information #ad
6. Dade
#ad
Dade Fuel Pressure Regulator Upgraded Spring Kit FIT FOR 2003-2007 Ford 6.0L POWERSTROKE 3C3Z9T517AA
#adDade #ad - Part number: 3c3z9t517aa 3c3z9t517ae 3c3z9t517ad 3c3z9T517AG. Part number: 3c3z9t517ag 3c3z-9t517-ag 904239 r81001 1843065C98. Please check the OEM part number before purchase.More information #ad
Fit for 2003-2007 ford 6. 0l powersTROKE. We take responsibilities in any situations without loss in your end. Click "add to cart" now, and you will enjoy ONE YEAR Replacement and Refund Warranty.Brand | Dade #ad |
Manufacturer | Dade #ad |
Weight | 0.04 Pounds |
Part Number | 3C3Z9T517AA |
Model | 3C3Z9T517AA |
Warranty | LIFETIME MONEY BACK WARRANTY - LIMITED TIME LOW PRICE OFFER |
More information #ad
7. TamerX
#ad
Injector Saver and Fuel Pressure Regulator Blue Spring Upgrade Kit for 2003-2007 Ford Powerstroke 6.0L
#adTamerX #ad - Complete fuel-pressure restoring solution for Powerstroke 6. 0l applications. Prevents cylinders 7 and 8 from running on low fuel pressure and prolongs the service life of your diesel injectors.More information #ad
2-year warranty + free shipping. Replaces oem part numbers 9t517, 3c3z-9t517-AG, 9c165, 6E7Z-9C165-B. Restores fuel pressure to the updated spec recommended by the OEM.Brand | TamerX #ad |
Manufacturer | TamerX #ad |
Height | 2.5 Inches |
Length | 9.5 Inches |
Weight | 0.75 Pounds |
Width | 6 Inches |
Part Number | SK60-FPR1 |
More information #ad
8. A ABIGAIL
#ad
F550 Replaces # 3C3Z-9T517-AG 3C3Z9T517AG, F450, F350, 6.0 Blue Spring Kit Upgrade Powerstroke Fuel Pressure Regulator Kit Fits 2003 2004 2005 2006 2007 F250
#adA ABIGAIL #ad - Increase fuel pressure 10-15psi, increases fuel injector life of your Ford 6. 0 powerstroke. Housing and hardware made of high-quality materials, and constant use. Package: the 6. 0 blue spring kit includes blue spring upgrade, 4 rubber o-ring seals, 3 orifice seals, 4 screws and fuel pressure regulator housing needed for installation.Service: 100% satisfaction guarantee, parts, If you have any issues with the Fuel Regulator Kit, simply contact customer service for troubleshooting help, replacement, or refund.
More information #ad
Our aim is to make you satisfy the parts and the service we provide for you. High quality: oem standard, durable against water, debris, tested to ensure trouble-free installation and performance, direct replacement for your old or broken one. Function: this 6. 0 blue spring upgrade kit can help prevent low fuel pressure that may lead to injector failure. Application: this fuel regulator kit fits for 2003, 2005, 2007 6. 0 powerstroke f250, 2006, f350, 2004, f450, f550 F-Super Duty models.
Brand | A ABIGAIL #ad |
Manufacturer | A ABIGAIL #ad |
Part Number | A7803F |
More information #ad
9. Sinister Diesel
#ad
Fuel Regulator Kit, Sinister Diesel Blue Spring Kit with Adjustable Billet Spring Housing, Ford Blue Spring Kit 6.0 Powerstroke – Fast Install For 2003-2007 Ford Powerstroke 6.0L
#adSinister Diesel #ad - 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. Each purchase is backed by our Customer Satisfaction Warranty so that you can buy with confidence knowing you’re making a risk free investment. 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.
More information #ad
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. 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. 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.
Brand | Sinister Diesel #ad |
Manufacturer | Sinister Diesel #ad |
Height | 4 Inches |
Length | 9 Inches |
Weight | 0.5 Pounds |
Width | 5 Inches |
Part Number | SD-FUELBLK-6.0-ADJ |
Model | SD-FUELBLK-6.0-ADJ |
More information #ad