Sinister Diesel Blue Spring Kit with Billet Housing SD-FUELBLK-6.0

Fuel Pressure Upgrade for 2003-2007 Powerstroke 6.0L

The Sinister Diesel Blue Spring Kit with Billet Housing SD-FUELBLK-6.0 is designed to restore proper fuel pressure. Over time, the factory spring weakens and causes low fuel pressure. This kit replaces worn components and helps maintain consistent fuel delivery.

This system includes a new blue spring and a billet aluminum housing. Together, they improve fuel pressure regulation and support better injector performance. As a result, your engine can run more efficiently and reliably.

Restores Fuel Pressure and Supports Injector Life

This upgrade helps restore lost fuel pressure caused by a worn factory spring. Consistent fuel pressure is critical for injector performance. Therefore, maintaining proper pressure helps reduce injector issues and supports long-term reliability.

Improved fuel delivery also supports better engine response. In addition, it helps maintain smoother operation under load.

Billet Aluminum Housing for Strength

The housing is CNC machined from T6-6061 billet aluminum. This construction provides strength and resistance to wear. It also helps handle higher fuel pressure without distortion.

The housing features a Sinister Blue anodized finish with a laser-etched logo. This provides durability and a clean appearance under the hood.

Easy Installation with Complete Kit

This kit includes all necessary components for installation. As a result, the upgrade process is straightforward. It is designed to replace OE part number 3C3Z-9T517-AG.

The package includes a new spring, gasket set, and installation hardware. Therefore, no additional parts are required to complete the job.

Key Features

Anodized Sinister Blue finish
CNC machined T6-6061 billet aluminum housing
Laser etched Sinister Diesel logo
Includes upgraded blue spring
New gasket and O-ring set included
Restores lost fuel pressure
Helps protect injectors from low fuel pressure
Replaces OE part number 3C3Z-9T517-AG
Includes installation hardware
2-year warranty
CARB EO# D-721-4 for 50-state legality

Built for Reliable Fuel System Performance

The Sinister Diesel Blue Spring Kit with Billet Housing SD-FUELBLK-6.0 is a practical upgrade. It supports injector health and improves fuel system performance. This kit works well for daily driving, towing, or off-road use.

Explore more Powerstroke performance parts here.