K&N parts matching Mobil MA3940 air filter

The Mobil MA3940 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
Alex Hernandez Jr, Texas
Delivery was fast even with standard shipping. Install was a little tricky but not because of the filter but because of my vehicle (2011 Audi Q5 3.2 V6 Quattro). The screws did not align exact with the housing but nothing a pair of pliers didn't fix by bending them just ever so slightly. Other than that, I love the filter. I am unsure if this added any more horsepower but I didn't notice a little more pep and get up and go after the install. Fuel economy seems the same but I hadn't been recording the mileage. In conclusion, I am very satisfied. P.S. MAKE AN AIR INTAKE FOR MY VEHICLE AND I'LL BUY IT!!
James Arbogast, Hooksett, New Hampshire
Fast shipping. Easy instillation. Great performance
Steve Mccully, Norwich, United Kingdom
Good service - and a good product.
E-1987 K&N E-1987 Replacement Air Filter
List Price: $102.79
Your Price: $65.99