Oil/Fuel Caps

2003 - 2007 Ford 6.0L Powerstroke

Sinister Diesel Billet Blue Cap Kit for 2003-2007 Ford Powerstroke 6.0L diesels includes three precision CNC machined caps that won't crack or crumble after repeated heat cycling like the factory plastic parts can. Includes Oil Filler Cap, Oil Filter Cap & Fuel Filter Cap.

Sinister Diesel Billet Blue Cap Kit for 2008-2010 Ford Powerstroke 6.4L diesels includes three precision CNC machined caps that won't crack or crumble after repeated heat cycling like the factory plastic parts can. Includes Oil Filler Cap, Oil Filter Cap & Fuel Filter Cap.

Motorcraft's OEM Fuel Filter Cap for 2003-2007 Ford 6.0L Powerstroke diesels

Sinister Diesel's Billet Fuel Filter Cap for 2003-2007 Ford 6.0L Powerstroke diesels is constructed from a single solid aluminum billet material. It's far stronger than the OEM plastic cap and anodized in Sinister Blue for corrosion resistance. It also features a 1/8" NPT port for testing fuel pressure.

With Sinister Diesel's precision CNC machined billet Sinister Diesel 6.0L Oil Filter Cap for your 2003-2007 Ford 6.0L Powerstroke, you will never worry about cracking your factory plastic cap again! Also comes with a 1/8" NPT port for installing an external oil sending unit.

The factory fuel cap on 2013-2018 Dodge 6.7L Cummins diesels uses a small, flimsy plastic plug. Sinister Diesel's Fuel Plug is CNC Machined from solid billet aluminum and utilized a tight O-ring seal, and keeps dirt and moisture from entering your fuel tank.

1999-2010 Ford Powerstroke 7.3/6.0/6.4L and 2007.5-2019 Dodge Cummins - This new Sinister Diesel Oil Fill Cap functions like a factory cap, but features custom Sinister Diesel looks.

The FASS Fuel Systems Billet Fuel Filter Cap was engineered and manufactured in the USA with the quality you’d expect from FASS.

Never worry about hard starts, leaks, and fuel injection system issues caused by a cracked fuel filter cap on your 2008-2010 Ford Powerstroke 6.4L again with a Sinister Diesel Fuel Filter Cap. Constructed from a single solid aluminum billet, this filter cap is far stronger than the OEM plastic cap.

Sinister Diesel's billet oil filter cap for 2008-2010 Ford Powerstroke 6.4L diesels are precision made for a perfect fit and anodized in Sinister Blue for an eye-catching look and an extra layer of corrosion resistance. It also features a 1/8" NPT tap for an external oil temperature sending unit.

2001-2016 GMC Chevy 6.6L Duramax - Not just a dress-up part, XDP’s Billet Oil Cap features a durable aluminum construction, and is a direct replacement for the factory cap that becomes damaged and brittle with age.

Upgrade your fuel filter cap with XDP’s Billet Fuel Filter Cap. A direct replacement for your 2003-2007 Ford Powerstroke 6.0L factory cap that becomes damaged and brittle with age.

2003-2010 Ford Powerstroke 6.0L / 6.4L - Not just a dress-up part, XDP’s Oil Filter Cap features a durable aluminum construction, and is a direct replacement for the factory cap that becomes damaged and brittle with age.

A replacement diesel fuel cap for the fuel fill-up tube on your 2013-2018 Dodge Cummins 6.7L and 2014-2018 Dodge Ram 1500 3.0L EcoDiesel.

The XDP Fuel Fill Cap helps keep contaminants from getting in the tank of your 2013-2018 Dodge Ram 6.7L Cummins or your 2014-2018 Dodge Ram 3.0L Cummins after the engineers decided to do away with the fuel filler cap from the factory.

The XDP Billet Oil Cap is a direct fit replacement for your 1998.5-2018 Dodge Ram 5.9L/6.7L Cummins truck.