K&N parts matching Hastings AF1437 air filter

The Hastings AF1437 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Hastings air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Patrick Cafone, New York
Filter fit perfectly. Looking forward to never buying a paper filter again. Thank you
R. Cromby, San Antonio, Texas
Excellent product ! Been using K&N filters in all my motorcycles since mid 1980s, and now all our cars & trucks. Almost immediately after taking out Ford provided factory filter in my 2013 F250 Super Duty 6.7L diesel, and replacing it with K&N replacement, I saw (thru on-board computer) my MPG increase, more responsive and easier throttle control, and slightly smoother auto-transmission shifts. K&N has never disappointed me in any of their products. Thanks !
Art Miller, New York
I've had KN products before and have always been satisfied with them.
33-5010 K&N 33-5010 Replacement Air Filter
List Price: $130.69
Your Price: $83.99
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Kirk Kettridge, Vacaville, California
I have only had the filter in the truck for about a month but so far so good. During this time, I have not towed our travel trailer with it in so I can't comment on the upper rpm level performance of it as yet but it will be put to the test in late Feb. early March when we make a trip to Arizona from California. Overall, it went in very easily and it looks very similar to the Motorcraft OEM air filter. Only time will tell how well it performs but I have had K&N filters in all my other trucks before and they performed flawlessly. I have seen a miniscule increase in fuel economy over the past 3 or 4 tanks of fuel that I have gone through since installing it. Hopefully, it will increase a bit more.
Zachariah Riley , Phoenix, Arizona
Amazing filter.
Kurtis Bradshaw, Prince Albert, Canada
Great product for the Ford F350 Super Duty 6.7L.
E-0644 K&N E-0644 Replacement Air Filter
List Price: $178.09
Your Price: $97.99