Sinister Diesel Fuel Filter Cap for 2003–2007 Ford Powerstroke 6.0L – Fits F-250, F-350, and Excursion – Billet Aluminum Replacement for Engine-Mounted Fuel Filter Housing

6. 0 Fuel Filter Cap

• Impervious to Cracking – Solid aluminum billet construction outlasts OEM plastic caps, preventing cracks and failures under high heat and vibration.
• CNC Machined for Precision Fit – Crafted from a single billet for exact OEM-style dimensions and rock-solid strength in demanding diesel applications.
• Integrated 1/8″ NPT Test Port – Built-in port lets you quickly hook up a gauge to monitor fuel pressure without extra adapters.
• Anodized Sinister Blue Finish – Hard-anodized coating resists corrosion and adds a custom, high-end look under the hood.
• Direct Drop-In Replacement – Installs in seconds using the factory O-ring and stock housing—no modifications or special tools needed.