Oil Caps

Add some durability and style to your truck using these Sinister Diesel 03-07 Powerstroke billet cap! Unlike the OEM oil and filter caps, these won't crack from overtightening or just the passing of time. All three caps are gray, adding a nice splash of...

Sinister Diesel 2017+ Ford Powerstroke Windshield Washer Cap

Sinister Diesel 03-07 Ford Powerstroke 6.0L Windshield Washer Fluid Cap

Sinister Diesel Chevy Duramax L5P Master Cylinder Cap

This new Coolant Reservoir (Degas) Cap functions like a factory cap, but features custom Sinister Diesel looks. The cap fits OEM or Sinister Diesel Coolant Reservoir for the 2001-2016 GM Duramax. It is made from CNC machined, solid billet T6-6061...

Sinister Diesel 20+ Ford Powerstroke 6.7L Coolant Reservoir (Degas) Cap

This new Coolant Reservoir (Degas) Cap functions like a factory cap, but features custom Sinister Diesel looks. The cap fits OEM or Sinister Diesel Coolant Reservoir for the 2013-2019 Dodge Ram 2500 3500 6.7L Cummins. It is made from CNC machined, solid...

This new Coolant Reservoir (Degas) Cap functions like a factory cap, but features custom Sinister Diesel looks. The cap fits OEM or Sinister Diesel Coolant Reservoir for the 2001-2016 GM Duramax. It is made from CNC machined, solid billet T6-6061...

Weapon R Acura/Honda Billet Aluminum Turbo look Oil Cap - Purple

Weapon R Acura/Honda Billet Aluminum Turbo look Oil Cap - Yellow/Gold

Weapon R Acura/Honda Billet Aluminum Turbo look Oil Cap - Blue

Weapon R Acura/Honda Billet Aluminum Turbo look Oil Cap - Red

Weapon R Acura/Honda Billet Aluminum Turbo look Oil Cap - Polished

Weapon R Air Intake Temperature Sensor Replacement Grommet

Threaded Insert, Vented Oil Fill Cap, -10 ORB Female & LS, LT & Coyote 1/4 Twist Thread In Black.