K&N parts matching Mobil AF3978 air filter

The Mobil AF3978 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
Alain Lenoble, Soissons, France
Efficacité et performances dignes de mes attentes.
Gregg Dantin, Bay City, Texas
Filter made small but noticeable improvements in maximum power and cruising fuel economy compared to previous paper filter.
Baxter Culver, Sacramento, California
Jaguar doesn't make it easy to change an air filter. Some disassembly required, but the K&N filter fit better than the OEM filter and was easier to install. Looking forward to cleaning it only at 50k intervals.
33-2273 K&N 33-2273 Replacement Air Filter
List Price: $73.29
Your Price: $46.99