K&N parts matching Baldwin PA4178 air filter

The Baldwin PA4178 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Baldwin air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Gary Bert, Windham, New Hampshire
I have used K&N filters for most of my vehicles the past 3 plus years, it only makes sense. Replace them once and clean them as needed. All the vehicles I put these filters on run smoother and a noticeable sound difference when get on the peddle. Gas mileage gain is negligible but any little bit helps. No issues with the vehicles I have them in, all positive. I typically put these in soon after I purchase the vehicle, including new.
Michael, Lena, Wisconsin
Perfect fit & easy to install.
Jake Myers, Nebraska
Bought this product for my girlfriends Monte Carlo. EPA showed the car got 29 MPG. I reset the average MPG function on her car to see what it was really getting and after an 80 mile drive, stop and go city, wind at the back the car only averaged 25.7 MPG. I put in this KN filter and reset the average MPG on her car and took it on the same 80 mile trip but into a head wind. When I got back to her place I checked it and on the trip back I averaged 33.7 MPG You might think I was babying it on the drive but I wasn't. I drive all my vehicles the same way. Her car always had a hesitation in it when you put your foot on the gas pedal. Put the KN in and that hesitation has gone away. She loves her car now that it is getting better gas mileage and has a lot more power. I talked her into a KN for this car after fighting with her for years to put them on her vehicles. She won't go back to the paper filters after this.
33-2334 K&N 33-2334 Replacement Air Filter
List Price: $74.49
Your Price: $47.99