Sinister Diesel Replacement Fuel Injector – 6.0L Powerstroke
Fits 2004–2007 Ford F-250 / F-350 / F-450 / F-550 Super Duty & Excursion
Note: Due to high demand, please allow approximately 2–3 weeks for your injector to be built, tested, and ready to ship.
Key Features
• Brand-new injector coils and harness assemblies
• New electrical connector ensures proper sealing and connection through the valve cover
• Redesigned spool valve helps eliminate stiction for smoother operation
• Enhanced injector response rate and cold-weather performance
• Precision-ground nozzles for accurate and consistent fuel delivery
• Fully tested to meet or exceed OEM specifications
• 2-year unlimited mileage warranty
Product Overview
Bring your 6.0L Powerstroke back to its peak performance with the Sinister Diesel Replacement Fuel Injector — the trusted solution for restoring power, reliability, and fuel efficiency. Designed to meet or exceed OEM specifications, each injector delivers precise fuel control and exceptional durability.
Every Sinister Diesel injector is built from the ground up with new components — from injector coils and harness assemblies to connectors and redesigned spool valves. The updated spool valve design helps prevent stiction, one of the most common issues on the 6.0L Powerstroke, resulting in improved startup performance, smoother idling, and better throttle response.
Each injector undergoes a meticulous inspection and testing process, including leak testing, flow balancing, and performance validation across multiple operating conditions. Precision-ground nozzles ensure uniform spray patterns and fuel atomization for optimal combustion.
All plunger return springs, O-rings, and seals are replaced with new, high-quality components. The result is a long-lasting, OEM-quality injector that’s ready to perform under any condition — whether you’re towing, hauling, or daily driving.
What’s Included
• (1) Sinister Diesel Replacement Fuel Injector for 2004–2007 6.0L Powerstroke
• New injector coils and harness assemblies
• New electrical connector
• New redesigned spool valve
• 2-year unlimited mileage warranty
Q&A
Q: Are these injectors direct OEM replacements?
A: Yes. These injectors are designed as exact-fit OEM replacements, requiring no tuning or modifications for installation.
Q: Do I need to replace all 8 injectors at the same time?
A: While not required, replacing injectors in sets helps maintain even fueling and performance across all cylinders.
Q: What is injector stiction and how does this injector fix it?
A: Stiction occurs when the spool valve inside the injector sticks due to oil varnish buildup, causing rough starts or poor idle. Our redesigned spool valve virtually eliminates stiction for consistent and smooth operation.
Q: How are these injectors tested?
A: Each injector is leak, flow, and pressure tested to meet or exceed OEM performance standards before shipping.
Q: What is the warranty coverage?
A: All Sinister Diesel injectors are backed by a 2-year unlimited mileage warranty for peace of mind.
Q: Why does shipping take 2–3 weeks?
A: Each injector is built, balanced, and flow-tested to order. This process ensures every unit meets strict quality standards — the short wait means long-term reliability and precision you can count on.
