<p>Description Warranty Information Restore proper fuel pressure and help protect your HEUI fuel injectors with the SWAG Performance Parts Fuel Pressure Regulator Blue Spring Upgrade Kit for 2003-2007 Ford 6.0L Powerstroke Diesel engines. One of the most common issues on the 6.0L Powerstroke is inadequate fuel pressure caused by the factory regulator spring losing tension over time. Low fuel pressure can contribute to poor injector performance, hard starts, rough idle, reduced throttle response, and premature injector wear. The SWAG Blue Spring Upgrade is engineered to increase regulated fuel pressure by approximately 10 PSI , helping maintain the fuel pressure levels recommended for optimal injector operation. Designed as a direct-fit replacement for the factory regulator components, this kit installs into the OEM fuel pressure regulator housing with no permanent modifications required. Whether your truck is completely stock or equipped with aftermarket tuning and performance upgrades, the SWAG Blue Spring Upgrade is one of the best preventative maintenance upgrades you can perform on a 6.0L Powerstroke. Manufactured from premium-quality materials and precision-engineered for long service life, every kit includes the components needed for a clean, reliable installation. Features & Benefits Increases regulated fuel pressure by approximately 10 PSI Helps protect expensive HEUI fuel injectors from low fuel pressure conditions Improves throttle response and overall drivability Supports injector longevity and fuel system reliability Direct replacement for factory fuel pressure regulator components No cutting or permanent modifications required Ideal for stock, towing, daily driven, and performance applications Precision-manufactured components for OE-quality fit and function Vehicle Fitment Ford Super Duty 2003 Ford F-250/F-350/F-450/F-550 6.0L Powerstroke Diesel 2004 Ford F-250/F-350/F-450/F-550 6.0L Powerstroke Diesel 2005 Ford F-250/F-350/F-450/F-550 6.0L Powerstroke Diesel 2006 Ford F-250/F-350/F-450/F-550 6.0L Powerstroke Diesel 2007 Ford F-250/F-350/F-450/F-550 6.0L Powerstroke Diesel Ford Excursion 2003-2005 Ford Excursion 6.0L Powerstroke Diesel Ford E-Series 2004-2007 Ford E-350/E-450 6.0L Powerstroke Diesel Kit Includes Blue fuel pressure regulator spring Regulator housing O-rings and seals Installation hardware Why Upgrade to the Blue Spring? The factory fuel pressure regulator is known to allow fuel pressure to drop below ideal operating levels as components age. The Blue Spring Upgrade helps maintain proper fuel pressure, promoting improved injector lubrication and reducing the risk of injector damage caused by fuel starvation. It is widely considered one of the most worthwhile reliability upgrades for any 6.0L Powerstroke owner. OEM / Interchange Numbers 3C3Z-9T517-AG 3C3Z-9T517-AA 3C3Z-9T517-AD 3C3Z-9T517-AE 4C2Z-9T517-AA 4C2Z-9C968-A Dorman 904-490 Dorman 904-239 R81001 1 YEAR WARRANTY</p>
Description Warranty Information Restore proper fuel pressure and help protect your HEUI fuel injectors with the SWAG Performance Parts Fuel Pressure Regulator Blue Spring Upgrade Kit for 2003-2007 Ford 6.0L Powerstroke Diesel engines. One of the most common issues on the 6.0L Powerstroke is inadequate fuel pressure caused by the factory regulator spring losing tension over time. Low fuel pressure can contribute to poor injector performance, hard starts, rough idle, reduced throttle response, and premature injector wear. The SWAG Blue Spring Upgrade is engineered to increase regulated fuel pressure by approximately 10 PSI , helping maintain the fuel pressure levels recommended for optimal injector operation. Designed as a direct-fit replacement for the factory regulator components, this kit installs into the OEM fuel pressure regulator housing with no permanent modifications required. Whether your truck is completely stock or equipped with aftermarket tuning and performance upgrades, the SWAG Blue Spring Upgrade is one of the best preventative maintenance upgrades you can perform on a 6.0L Powerstroke. Manufactured from premium-quality materials and precision-engineered for long service life, every kit includes the components needed for a clean, reliable installation. Features & Benefits Increases regulated fuel pressure by approximately 10 PSI Helps protect expensive HEUI fuel injectors from low fuel pressure conditions Improves throttle response and overall drivability Supports injector longevity and fuel system reliability Direct replacement for factory fuel pressure regulator components No cutting or permanent modifications required Ideal for stock, towing, daily driven, and performance applications Precision-manufactured components for OE-quality fit and function Vehicle Fitment Ford Super Duty 2003 Ford F-250/F-350/F-450/F-550 6.0L Powerstroke Diesel 2004 Ford F-250/F-350/F-450/F-550 6.0L Powerstroke Diesel 2005 Ford F-250/F-350/F-450/F-550 6.0L Powerstroke Diesel 2006 Ford F-250/F-350/F-450/F-550 6.0L Powerstroke Diesel 2007 Ford F-250/F-350/F-450/F-550 6.0L Powerstroke Diesel Ford Excursion 2003-2005 Ford Excursion 6.0L Powerstroke Diesel Ford E-Series 2004-2007 Ford E-350/E-450 6.0L Powerstroke Diesel Kit Includes Blue fuel pressure regulator spring Regulator housing O-rings and seals Installation hardware Why Upgrade to the Blue Spring? The factory fuel pressure regulator is known to allow fuel pressure to drop below ideal operating levels as components age. The Blue Spring Upgrade helps maintain proper fuel pressure, promoting improved injector lubrication and reducing the risk of injector damage caused by fuel starvation. It is widely considered one of the most worthwhile reliability upgrades for any 6.0L Powerstroke owner. OEM / Interchange Numbers 3C3Z-9T517-AG 3C3Z-9T517-AA 3C3Z-9T517-AD 3C3Z-9T517-AE 4C2Z-9T517-AA 4C2Z-9C968-A Dorman 904-490 Dorman 904-239 R81001 1 YEAR WARRANTY
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