
Upgrade your fuel system with the Sinister Diesel Billet Fuel Plug/Cap for 2008–2016 Powerstroke engines. Designed for both style and durability, this plug prevents dirt and moisture from entering your fuel tank, outperforming the flimsy factory plastic plug. CNC-machined from solid T6-6061 billet aluminum, it provides a precise fit and long-lasting protection, while the Viton O-ring ensures a tight, water-resistant seal. The sleek Sinister Blue anodized finish, laser-etched with the Sinister Diesel logo, adds a custom touch to your engine bay.
For added convenience, the plug features a magnet in the base, allowing for easy storage while fueling. Built for performance, this fuel plug is a simple yet effective upgrade that combines functionality with style.
Key Features:
- CNC-machined from durable T6-6061 billet aluminum
- Anodized in Sinister Blue for a stylish, corrosion-resistant finish
- Laser-etched Sinister Diesel logo for a custom look
- Tight O-ring seal to keep out dirt, water, and debris
- Magnetic base for convenient storage during refueling
Includes:
- (1) Sinister Diesel Billet Fuel Plug/Cap
- (1) Viton O-ring
Enhance your Powerstroke’s fuel system protection with Sinister Diesel’s precision-built, stylish fuel plug solution.

Upgrade your fuel system with the Sinister Diesel Billet Fuel Plug/Cap for 2008–2016 Powerstroke engines. Designed for both style and durability, this plug prevents dirt and moisture from entering your fuel tank, outperforming the flimsy factory plastic plug. CNC-machined from solid T6-6061 billet aluminum, it provides a precise fit and long-lasting protection, while the Viton O-ring ensures a tight, water-resistant seal. The sleek Sinister Blue anodized finish, laser-etched with the Sinister Diesel logo, adds a custom touch to your engine bay.
For added convenience, the plug features a magnet in the base, allowing for easy storage while fueling. Built for performance, this fuel plug is a simple yet effective upgrade that combines functionality with style.
Key Features:
CNC-machined from durable T6-6061 billet aluminum
Anodized in Sinister Blue for a stylish, corrosion-resistant finish
Laser-etched Sinister Diesel logo for a custom look
Tight O-ring seal to keep out dirt, water, and debris
Magnetic base for convenient storage during refueling
Includes:
(1) Sinister Diesel Billet Fuel Plug/Cap
(1) Viton O-ring
Enhance your Powerstroke’s fuel syst[...]
Upgrade your fuel system with the Sinister Diesel Billet Fuel Plug/Cap for 2008–2016 Powerstroke engines. Designed for both style and durability, this plug prevents dirt and moisture from entering your fuel tank, outperforming the flimsy factory plastic plug. CNC-machined from solid T6-6061 billet aluminum, it provides a precise fit and long-lasting protection, while the Viton O-ring ensures a tight, water-resistant seal. The sleek Sinister Blue anodized finish, laser-etched with the Sinister Diesel logo, adds a custom touch to your engine bay.
For added convenience, the plug features a magnet in the base, allowing for easy storage while fueling. Built for performance, this fuel plug is a simple yet effective upgrade that combines functionality with style.
Key Features:
- CNC-machined from durable T6-6061 billet aluminum
- Anodized in Sinister Blue for a stylish, corrosion-resistant finish
- Laser-etched Sinister Diesel logo for a custom look
- Tight O-ring seal to keep out dirt, water, and debris
- Magnetic base for convenient storage during refueling
Includes:
- (1) Sinister Diesel Billet Fuel Plug/Cap
- (1) Viton O-ring
Enhance your Powerstroke’s fuel system protection with Sinister Diesel’s precision-built, stylish fuel plug solution.