Sinister Diesel 1999-2007 & 2020-2021 Powerstroke, Fuel Cap – SD-FORD-GM-FC-99-01-21


Product Highlights:

The Sinister Diesel Billet Fuel Plug/Cap for the 1999-2007 & 2020-20201 Powerstroke is a stylish and durable option to keep dirt and moisture from entering your fuel tank. The factory uses a small, flimsy plastic plug and the Sinister Diesel Fuel Plug is CNC Machined from solid billet aluminum and utilized a tight O-ring seal. It’s laser etched with our Sinister Diesel logo and anodized in Sinister Blue.


  • Anodized in Sinister Blue
  • CNC Machined from T6-6061 billet aluminum
  • Laser etched Sinister Diesel Logo
  • O-ring for a tight water/debris resistant seal
  • Installed magnet in base for storage while fueling


  • (1) Sinister Diesel Billet Fuel Plug/Cap
  • (1) Viton O-ring