K&N parts matching Eco Gard XA10421 air filter

The Eco Gard XA10421 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Eco Gard air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Bill, Roseville, California
I'm using the K&N drop in filter in my 2015 Mustang GT. I notice a better engine sound and the electronic average mpg meter reads 2-3 mpg better now. I was really surprised because I normally go full on cold air intake versus drop in, but money is tight at the moment. Also the stock filter that I removed was about an inch thicker and made of cheap looking paper, so I'm sure that wasn't good for air flow and gas mileage. I've always used K&N for my cars (normal street driving) with no issues. Be careful not to over oil when cleaning them. If you do over oil - let the filter sit and drain somewhere before re-installing. Thanks K&N for a great product.
Justin, Arizona
Awesome product as per usual.
Chris, Florida
Excellent product as always with K&N. I wasn't ready to invest in a full on CAI for my '15 EcoBoost Mustang, so I went with the drop in filter instead. Can definitely notice a more responsive throttle and quicker boost build. Extremely fun to drive in Sport Mode.
33-5029 K&N 33-5029 Replacement Air Filter
List Price: $85.79
Your Price: $55.99