Dodge Cummins Diesel Trucks Benefit from K&N Air Filter Design

The Dodge Ram 2500 delivers a solid ride, serious stock power and great stability for heavy towing. It is also big and bold, just like the K&N air filters that are custom designed to fit in it.
OE Air Filter and Dodge Airbox
OE Air Filter and Dodge Airbox

K&N Air Filter in Dodge Airbox
K&N Air Filter in Dodge Airbox


K&N E-0776 and E-0784 air filters for 2003 to 2009 Dodge diesel trucks are noticeably different from the stock filter and can easily be confused by consumers as being "incorrect."

However, both of these K&N air filters do replace the OE flat panel air filter in the factory airbox. Their unique shape and design make maximum use of area in the factory airbox. Both still seal the same as the OE filters, but instead of hanging at the top of the airbox, they go all the way down to the bottom of the airbox. The K&N air filter allows more surface area than a flat panel air filter could provide and greatly increases dust capacity.

The simple drop in design increases horsepower and acceleration while providing excellent filtration. Our stock replacement air filters are washable, reusable and covered by our famous K&N Million-Mile Limited warranty.

The E-0784 high flow replacement K&N air filter is for the 2007, 2008 and 2009 Dodge Ram 2500 with a 6.7 liter Cummins diesel engine.

Owners of the 2003, 2004, 2005, 2006 and 2007 Dodge Ram 2500 models with a 5.9 liter Cummins diesel engine also gain a lifetime of performance with K&N's E-0776 replacement air filter.
Replace Stock Diesel