K&N parts matching Mobil MA4031 air filter

The Mobil MA4031 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
Randy, Lexington, Kentucky
Great product and quick delivery.
Richard Campbell, Herndon, Virginia
Awesome quality. Process to order and deliver was exceptional.
Larry Marcy, Mississippi
My 2012 Toyota Tundra (5.7 liter V-8) was getting about 18 mpg and on rare occasions 19 mpg.  I replaced the stock air filter with a K&N air filter. MPG is now a steady 20 mpg.  I have used K&N air filters in other vehicles I have owned and have seen an improvement in mpg. K&N web site is easy to navigate, so give them a try.
33-2387 K&N 33-2387 Replacement Air Filter
List Price: $91.99
Your Price: $59.99