K&N parts matching AC Delco A3645C air filter

The AC Delco A3645C 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
Cali-life, Bakersfield , California
Great buy. I can see the diffrence, big time (power/better fuel). Very recommended!! 1st upgrade that is affordable & a good investment.
Charles , Port Huememe, California
Love love love my product. Keep up the good work.
Steve, Iowa
Awesome product. My gas mileage has gone up a bit as advertised.
33-2451 K&N 33-2451 Replacement Air Filter
List Price: $84.19
Your Price: $54.99
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Greivin Fallas, Costa Rica
Very easy to install. I have more HP and more performance.
David Jones , Puyallup, Washington
Was shipped and arrived on time. Installed same day, took less than 10 minutes. Very happy with it overall.
Leonard, Long Beach, California
Great product. I definitely felt increase in hp and throttle response.
33-2482 K&N 33-2482 Replacement Air Filter
List Price: $82.19
Your Price: $52.99
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Sean Choka, Fort Wayne, Indiana
My first MOD to every new car I get is a K&N Filter, I love the product, you can't beat the performance value for the money, Thank You.....
Bryan Maclean, MIssion Viejo, California
This is probably my 10th K&N product. They never fail to produce excellent results. New 2017 Hyundai limited. Engine idle dropped to 500rpm from 900rpm. Averaged 42 MPG @ 75mph. Noticeable improvement in torque and midrange power.
Patrick Edmund, Mississauga, Canada
Great product and shipment was fast.
33-5050 K&N 33-5050 Replacement Air Filter
List Price: $77.99
Your Price: $49.99