Ford 3C3Z-9T517-AG Fuel Pressure Regulator "Blue Spring" Upgrade Kit

2003-2007 Ford 6.0L Powerstroke
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Ford / Motorcraft
XDP Part Number:
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The Ford 3C3Z-9T517-AG “Blue Spring” upgrade is a low-cost, must-have modification that will increase fuel pressure on your 6.0L Powerstroke. Even simple aftermarket performance upgrades can easily challenge the limits of your stock fuel system. Increasing the fuel pressure will help prevent damage to your injectors and even extend injector life. Common pressure increases can be 10-15PSI as well as increased engine performance, increased driveability and smoother power delivery. 

  • Easy Upgrade
  • Increased Injector Life
  • Increased Fuel Pressure
  • Great For Stock & Modified Trucks

Mfg. Number:

Customer Reviews - Include your order number for a chance to win a $100 GiftCard

(245 Ratings, 3 Reviews) Average Rating:
Great product
Ian Wise (Killeen, TX) 6/7/2016 12:20 PM
Awesome product. Easy to install. Recommend doing research on the job before digging in. Order #716408
Great product
Ian (Killeen, TX) 6/7/2016 12:17 PM
Great product. Easy to install and definitely can see a difference in acceleration. I do recommend doing your research before tackling this job. Dieseltechron videos help greatly.
Made it run like new again
scott mecham (Heyburn, ID) 11/13/2015 10:45 AM
Put the new spring kit in and made a noticeable difference. Seems like it runs quieter and has put some more spunk in her. order #421132