Sinister Diesel Oil Fill Cap 12v (SDFC12V) for 1989-1998 Cummins 5.9L

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The Sinister Diesel Oil Fill Cap is a high-quality replacement for 1989–1998 Cummins 5.9L 12V engines. Made from CNC-machined T6-6061 billet aluminum, it offers both durability and custom Sinister Diesel styling, available in gray or Sinister Blue.

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Description

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!

Additional information
Weight 2 lbs
Dimensions 4 × 4 × 4 in
Fitment

Fitment

1998 Dodge/Ram 2500 5.9L

1998 Dodge/Ram 3500 5.9L

1997 Dodge/Ram 2500 5.9L

1997 Dodge/Ram 3500 5.9L

1996 Dodge/Ram 2500 5.9L

1996 Dodge/Ram 3500 5.9L

1995 Dodge/Ram 2500 5.9L

1995 Dodge/Ram 3500 5.9L

1994 Dodge/Ram 2500 5.9L

1994 Dodge/Ram 3500 5.9L

1993 Dodge/Ram 2500 5.9L

1993 Dodge/Ram 3500 5.9L

1992 Dodge/Ram 2500 5.9L

1992 Dodge/Ram 3500 5.9L

1991 Dodge/Ram 2500 5.9L

1991 Dodge/Ram 3500 5.9L

1990 Dodge/Ram 2500 5.9L

1990 Dodge/Ram 3500 5.9L

1989 Dodge/Ram 2500 5.9L

1989 Dodge/Ram 3500 5.9L

Features

Features

  • Anodized in Sinister Blue
  • CNC Machined from T6-6061 Billet Aluminum
  • Etched Sinister Diesel Logo
  • Direct replacement for factory cap
  • Fits 1989-1998 Cummins 5.9L 12V engines
  • 1 Year Warranty
Includes

Includes

  • (1) Sinister Diesel Oil Fill Cap
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About brand
Sinister Diesel builds performance and reliability parts for diesel trucks. The company focuses on cooling, durability, and proper fitment. Sinister Diesel performance parts support daily driving, towing, and work use. Sinister designs cooling systems, charge pipes, and fuel system components. These parts help manage heat and reduce stress on the engine. Better cooling supports consistent performance under load. Truck owners trust the brand for dependable upgrades. These parts perform well in real-world driving conditions.
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