K&N parts matching Ryco A1637 air filter

The Ryco A1637 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Ryco air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Ash Luigi Cazzalli, Redwood City, California
Great buy if you have a 13" round air filter. Fits perfect into my 1969 Mustang!
Ron Herron, Michigan
The only place I could find this filter!
E-2865 K&N E-2865 Replacement Air Filter
List Price: $104.29
Your Price: $66.99
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Kenneth Stubert, Georgetown, Texas
It installed as easily as the OEM filters. I noticed an immediate increase in performance. I haven't checked the mileage yet, but I also expect a small boost there as well. Highly recommend K&N filters!
Juan Garica, Bogota, Colombia
I own a European version Mercedes w124 230E. This is a 2.3 liter, 4 cylinder M102 engine. With the K&N filter instantly power was increased specially at high revs. Mileage also increased specially on the road, perhaps a little in town. Though do not expect to convert your car engine into a V8.
E-9178 K&N E-9178 Replacement Air Filter
List Price: $121.09
Your Price: $77.99