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
Thomas Simcoe, Lanexa, Virginia
Having purchased my oil filters from this site previously, I found it a very easy to now start to purchase my air filters for my vehicle. It is a very easy way to find the exact filter for my vehicle. I will continue to use this site for all my future purchases.
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.
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!
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
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