Sinister Diesel Update Kit (SD60UK03) for 2003-2004 Powerstroke 6.0L -built before 09-23-2003-

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The updated “Blue Spring” kit is an easy 30-minute install that restores factory fuel pressure, typically increasing it by 10 psi on most 6.0 engines. Higher fuel pressure prevents injectors from outflowing the stock fuel pump, reducing air in the injectors and extending their lifespan. Benefits include quieter idling, quicker throttle response, and faster turbo spool-up. The kit includes all necessary O-rings and hard parts for rebuilding the fuel pressure housing.

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Description

The easy 30 minute install of the new updated “Blue Spring” will increase your fuel pressure back up to where it should be from the factory. Most 6.0’s see an increase of 10 psi of fuel pressure. The added fuel pressure will help keep the injectors from out flowing the stock fuel pump, meaning no air in the injectors, and an injector that will live much longer. Most trucks will actually quite down a little at idle, rev up a lot quicker and with the added fuel pressure, a little quicker spool up on the turbo. The kit does include all the O-Rings and hard parts to rebuild the fuel pressure housing.

Additional information
Weight 2 lbs
Dimensions 6 × 6 × 6 in
Manufacturer

Fitment

Fitment

2004 Ford F-250 6.0L

2004 Ford F-350 6.0L

2003 Ford F-250 6.0L

2003 Ford F-350 6.0L

Features

Features

  • Updated oil drain tube (Original drain tube was very restrictive, choking hot oil in the turbo)
  • Sinister Billet Blue Spring Kit;(Keeps the fuel pressure up when the factory return spring gets weak)
  • Turbo Feed Line (Factory drain line had a steel braided portion that was prone to failing)
  • Degas bottle cap (The most important part on a 6.0, keeping cooling system pressures in check and functioning properly)
  • Stand pipe kit (Often the cause of a “No hot start” issue. Factory o-rings shove and cause a high pressure oil leak)
Installation

Installation

We have complied all of the OEM Ford parts that have been updated since the release of the late 2004 Powerstrokes to 2007. If your turbo is coming out of the truck, most of these parts will be easily accessible.

Designed for engines built before (09-23-2003)

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About brand
Sinister Diesel builds performance and reliability parts for diesel trucks. The company focuses on cooling, durability, and proper fitment. Sinister Diesel performance parts support daily driving, towing, and work use. Sinister designs cooling systems, charge pipes, and fuel system components. These parts help manage heat and reduce stress on the engine. Better cooling supports consistent performance under load. Truck owners trust the brand for dependable upgrades. These parts perform well in real-world driving conditions.
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