Sinister Diesel Exhaust Fluid (DEF) Cap 11-16 Ford 6.7L Powerstroke BD-1047116 P/N: RH-2872 would be the

P/N: RH-2872 would be the correct box for your truck

which can crack and even burst when subjected to higher than stock boost levels

For 2003-2004 models this is for automatic transmission trucks only and will only toggle to 1200 RPM

The Bully Dog Sensor Docking Stations offers an unparalleled glimpse into the health of your vehicle

Sinister Diesel Exhaust Fluid (DEF) Cap 11-16 Ford 6.7L Powerstroke BD-1047116 P/N: RH-2872 would be theNot to be negative, but this will not add horsepower to your truck but it is more durable, lasts longer and looks better than the stock exhaust fluid cap on your Powerstroke! The Sinister Diesel DEF cap for the 6. 7L Powerstroke is a stylish and durable alternative to the stock Diesel Exhaust Fluid cap. The cap is CNC machined from solid billet T6 6061 aluminum, and finished in the signature Sinister Blue.