Powerstroke 1/4 NPT Swivel Oil Fill Cap

Add a clean, functional upgrade to your engine bay with the G&R Diesel Billet Oil Fill Cap for the 6.0L and 6.4L Powerstroke. Machined from billet aluminum and equipped with an integrated stainless steel 1/4 NPT swivel return port, this cap improves both appearance and oil return routing in one simple bolt-on solution.

Premium Construction & Materials

CNC-machined from high-quality billet aluminum, the cap delivers durability and a refined finish that stands out under the hood. The integrated stainless steel swivel return port is designed for smooth, leak-free oil return without forcing rigid lines into tight bends.

Key Features & Benefits

• Dual Application Fitment: Directly replaces the factory oil fill cap on both 6.0L and 6.4L Powerstroke engines
• Integrated 1/4 NPT Swivel Return Port: Allows oil return lines to connect with a swivel fitting, eliminating hard bends and reducing stress on lines and fittings
• Billet Aluminum Construction: Stronger and more durable than the stock plastic or basic aluminum caps, with a professional machined appearance
• Clean Engine Bay Upgrade: Adds a subtle but noticeable improvement in both form and function
• Simple Installation: Direct replacement design for straightforward installation

Applications

• 2003–2007 Ford Super Duty with 6.0L Powerstroke
• 2008–2010 Ford Super Duty with 6.4L Powerstroke

Why Choose the G&R Diesel Oil Fill Cap?

Many aftermarket oil return setups force sharp bends into the return line at the fill cap, which can restrict flow or create long-term reliability issues. This billet cap solves that problem with a built-in swivel port while also upgrading the look of the engine bay. It is a practical, well-executed detail that complements other G&R Diesel Powerstroke components.

Part Number: GRD00223

A simple yet effective upgrade that combines improved oil return routing with a cleaner appearance on both 6.0L and 6.4L Powerstroke engines.