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K&N E-0785 Air Filter

Replacement Filters > Replacement Air Filter
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   5.0 out of 5 stars   8 Customer Reviews
  • Designed to boost horsepower and rate of acceleration
  • Can be cleaned and used again
  • High air flow with exceptional filtration
  • Lasts up to 50,000 miles before cleaning is required depending on driving conditions
  • Works with original equipment manufacturer vehicle electronics
  • Emissions legal in all 50 US states
  • Will NOT void vehicle warranty
  • Million Mile Limited Warranty®
The K&N E-0785 Air Filter fits some Ford F250 Super Duty, Ford F350 Super Duty, Ford F450 Super Duty, and Ford F550 Super Duty models. See vehicle applications link for details.
K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority of vehicles on the road. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop-in design means adding performance is simple. With most vehicles you simply remove the disposable air filter and replace it with a K&N. See applicable instruction sheet for details. Our stock replacement air filters for street vehicles are covered by our famous K&N Million-Mile Limited Warranty and will be the last air filter your vehicle will ever need.

[More Information on K&N Replacement Air Filters]

Product Specifications

Air Filter ShapeOval
Base Outside Length11.75 in (298 mm)
Base Outside Width5.875 in (149 mm)
Filter MaterialCotton Gauze
Filter Re-Oiling Amount10.27 oz (304 ml)
Height9 in (229 mm)
Inner WireNo
Outside Length11.75 in (298 mm)
Outside Width5.875 in (149 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height12.06 in (306 mm)
Product Box Length12 in (305 mm)
Product Box Width8 in (203 mm)
Product StyleOval Air Filter
Top Material/FinishNone
Top Outside Length11.75 in (298 mm)
Top Outside Width5.875 in (149 mm)
Top StyleRubber
Weight3.7 lb (1.7 kg)

K&N E-0785 Air Filter Product Reviews

Wednesday, September 14, 2016 - Part E-0785
It's great, drops right in.

John Doyle
Plumas Lake, California
Sunday, July 3, 2016 - Part E-0785
Great filter, noticeable performance change.

Doug Kraemer
Tijeras, New Mexico
Thursday, August 13, 2015 - Part E-0785
Great filter, I have used these filters on every vehicle that I have own since 1999.

Allen Smith
Augusta. Georgia
Wednesday, March 25, 2015 - Part E-0785
Correct part arrived in good condition and was easy to install.

Ventura, California
Thursday, September 11, 2014 - Part E-0785
I love mine on my F-350 diesel 4x4 gave me a little more pep and roughly 2mpg. Easy to clean. I have many K&N products, only way to go

Leroy johnson
Willows, California
Monday, July 21, 2014 - Part E-0785
Good performane on my diesel. You can tell the defernce in the pickup of the engine and the ease of power to go.

William G Dixon
New York
Tuesday, June 24, 2014 - Part E-0785
I was amazed at how quick and easy it was to find what I was after on-line and then complete the purchase in a matter of minutes. The free shipping was great too (I live in Alaska). My F350 already runs better with the new K&N filter in place! THANKS!

Anchorage, Alaska