K&N parts matching Mazda L51813Z40A air filter

The Mazda L51813Z40A air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Mazda air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Jay Smith, Fresno, California
2011 Mazda6, 2.5 auto pulled 32 mpg from Fresno to San Diego, AC on, and hauling butt. I also have one in my 84 BMW 325e, 2.7 5spd. 30+ freeway, all day long.
Jon E., Shoreline, Washington
Filter rocks. Never need to get a new one once this is installed and my next purchase will be the air intake.
33-2424 K&N 33-2424 Replacement Air Filter
List Price: $94.19
Your Price: $60.99