K&N parts matching Beck/Arnley 0421878 air filter

The Beck/Arnley 0421878 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Beck/Arnley air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Joseph Cucchiara, Atlanta, Georgia
Very High quality replacement air filter, fit perfectly, very easy to install, definitely seemed to make a difference in engine performance.
Nick Darchik, Milford New Hampshire
I wish I had replaced the air filters MUCH SOONER... I own two Suzuki SX4 hatchbacks 2013's. Both cars got the same MPG. At best I was hoping for 2 possibly 2.5 MPG increase. The first tank after replacing the filters according to the on board computer I went from 25.5 to 33.8 MPG I was more than pleased. However after filling up with 7.5 gallons of gas, I had gone 279 miles. That works out to around 37 MPG!!! Nothing else has been changed. In the past when getting close to 250 MAX miles on a tank I would be looking for gas. Both cars have the same type of improvement in MPG. The acceleration is much better in both vehicles as well> There is a response now when pressing on the gas pedal. Money well spent and ROI is a no brainier as I'm already showing a major savings on gas.
Mauricio Garcia, El Paso, Texas
Great product and very easy to install. I noticed a big difference in the performance, my vehicle seems to have more power than with the original stock air filter.
33-2463 K&N 33-2463 Replacement Air Filter
List Price: $73.89
Your Price: $47.99