K&N parts matching Mobil MA4378 air filter

The Mobil MA4378 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
Michael Thompson, Mississippi
Great product.
Ray Jefferson, Red Oak, Texas
Great filter. I can tell my truck runs better and more power. I also have one on my Harley, can't go wrong buying this filter.
Steve Olsen, Spanaway, Washington
A definite improvement of performance. Very happy.
33-2023 K&N 33-2023 Replacement Air Filter
List Price: $85.79
Your Price: $54.99
K&N Special Order Repl Fltr
  • Designed to Increase Power
  • Million Mile Limited Warranty
Smiley Hatcher, Asotin, Washington
Very fast delivery without having to pay extra. Liked that a lot.
33-2099 K&N 33-2099 SPECIAL ORDER Repl Fltr
Your Price: $72.49