K&N parts matching AC Delco A1166C air filter

The AC Delco A1166C 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
Lance Rizzuto, Williamsburg, Virginia
I have had many K&N filters. This one was for a jeep that for the first time towed a motorcycle trailer from NJ to Williamsburg Va. The Jeep ran hot towing so one of the few things I could do while do on Vacation was to get a K&N filter to help for the trip home. K&N got it to my resort the next day. It added enough power that I ran about 20° cooler. K&N, Good Stuff. Worth the price just on that one trip.
33-2018 K&N 33-2018 Replacement Air Filter
List Price: $97.99
Your Price: $62.99
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
George Rey Levi Zuni, Albuquerque, New Mexico
No picture of anything fancy, just an older 3/4 ton Dodge Ram that works its rear off in dusty conditions. A perfect fit, it even looks cool.
Bryan Batsch, Gackle North Dakota
This filter installed very easy on my 2001 dodge 1500 quad cab truck with a 360 magnum. I noticed the power difference right away and my gas mileage also improved. Would highly recommend this upgrade to anyone.
Ralph Kimmell, Ford City, Pennsylvania
Filter made a positive improvement, my old air filter did not look dirty either.
33-2084 K&N 33-2084 Replacement Air Filter
List Price: $91.89
Your Price: $58.99
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Isaac, New Mexico
Installed on my 2000 Jeep XJ I6. Engine definitely feels a bit more responsive after installing this filter. Gas mileage not totally conclusive as of yet, but need more time - looks to be slightly improved (5?). And I'll never have to buy another air filter I'd say this is totally worth it for a vehicle you plan to keep around for 100k+ miles.
Christopher Jorda, New Jersey
Ordered twice from K&N once for my 98 Eclipse (short air intake system) and my 2002 ZX6R. Both products made me love K&N. This time I bought an air filter for my 2001 Jeep Cherokee and its great and easy to install. I always recommend K&N to my friends.
Kendra, Ohio
Love these filters. First thing I do when I get a new atv, car or truck is get a K&N air filter. Increased horse power and all around runs better.
33-2122 K&N 33-2122 Replacement Air Filter
List Price: $102.39
Your Price: $65.99
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Richard E. Curry, Miami, Florida
Ever since i put the air filter in my car it runs better and the pick up is great.
Jesse Walczak, Fuquay, Varina
Easy install.
Ernie Vaio, Sooke, Canada
I have used K&N products for over 14 years and they are GREAT. I will always use you filters etc. with every vehicle I own.
33-2175 K&N 33-2175 Replacement Air Filter
List Price: $90.39
Your Price: $57.99
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Gerald, Phoenix, Arizona
My info center computer states that my mpg went from 30.8 to 31.5 This is with appox. 750 miles driven. I have no info on the horsepower. But I assume it has similar positive results.
Louis Nardot, Chalus, France
Livraison rapide bonne qualité. Voiture plus performante et surtout économie non négligeables de carburants entre 1l et 1,5 litre pour 100 km . Merci kn.
Van Maris, Steven, Utrecht, Netherlands
Not the cheapest, but definitely the best. In my 13 year old diesel Volvo, I put a new K&N air filter and it got all the lost horsepowers back. :)
33-2763 K&N 33-2763 Replacement Air Filter
List Price: $81.79
Your Price: $52.99