K&N parts matching Mobil AF3914 air filter

The Mobil AF3914 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Mobil air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
David Parillo, United States
Product arrived earlier than anticipated and it fit the application perfectly.
Richard Lahan, Irmo, South Carolina
Great filters. Had my family mechanic switch both my wife's Nissan and my smart to K&N oil & air filters. My 2011 smart had a noticeable jump in horsepower right out of the shop. Very interested in seeing what the fuel mileage is like. I recommend K&N filters to everybody.
Ralph Ferrusi, Stormville, New York
I saw a K&N ad in the NRA's American Rifleman magazine. The filter is very well made and replaced the stock filter perfectly. My car does seems peppier, but mainly I was hoping for a really noticeable increase in (the already 45-48 mpg) gas mileage. Two fill-ups have shown a 0.5 to 1.0 mpg increase nothing really to write home about -but weather/temperatures are a big factor this time of year in the Northeast, so hopefully my average summer mileage will be bumped up to the mythical 48-50+ mpg range.
33-2417 K&N 33-2417 Replacement Air Filter
List Price: $87.99
Your Price: $56.99