K&N parts matching AC Delco A3131C air filter

The AC Delco A3131C air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many AC Delco air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Richard Wenrich, Harleysville, Pennsylvania
I have 2 cars and K&N filters are on both. I couldn't ask for a better filter. This one is for a 2012 fusion and my other one is on a 2000 Mustang GT. Both filters make the cars run so much better. Thank you K&N!
Rafael Colon , Kissimmee, Florida
Awesome filters!
Ed Araujo, New Jersey
The difference is incredible! There is a noticable increase in low end torque and in breathing at high revs. The filter fit easier than the replacement paper filters. I should have switched sooner.
33-2357 K&N 33-2357 Replacement Air Filter
List Price: $82.19
Your Price: $52.99
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
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.
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.
33-2424 K&N 33-2424 Replacement Air Filter
List Price: $94.19
Your Price: $60.99