Sinister Diesel 1989-1998 5.9L Cummins, Oil Fill Cap – SD-FC-12v


Product Highlights:

This new Sinister Diesel Oil Fill Cap functions like a factory cap, but features custom Sinister Diesel looks. The cap fits 1989-1998 Cummins 5.9L 12V engines. It is made from CNC machined, solid billet T6-6061 aluminum Available in gray or Sinister Blue, this cap looks as good as it works! 

Vehicle Fitment

1989-1998 Cummins 5.9L 12v

Key Features

  • Anodized in Sinister Blue
  • CNC Machined from T6-6061 Billet Aluminum
  • Etched Sinister Diesel Logo
  • Direct replacement for factory cap
  • Blue anodized finish for extra protection and a clean and stylish appearance


  • (1) Sinister Diesel Oil Fill Cap

*Special Order. Please allow for additional shipping time.