K&N parts matching Ford 4R3U9601AB air filter

The Ford 4R3U9601AB air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Ford air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Brian Pollaccia, Ukiah, California
It seems to breathe a lot better than stock filter,runs great. THANK YOU.
John Sheridan, New Jersey
Excellent product, good price, timely shipping. I have these filters in all my vehicles.
Robert Hubbard, New Jersey
Installed the filter in my 2007 mustang GT. What a difference, better power that you can feel. Thanks.
33-2298 K&N 33-2298 Replacement Air Filter
List Price: $78.49
Your Price: $50.99