K&N parts matching Donaldson P550437 fuel filter

The Donaldson P550437 fuel filter cross references with the K&N fuel filter parts below. K&N offers compatible fuel filters for many Donaldson fuel filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Fuel Filter
  • Built for High Flow Rates
  • Outstanding Filtration
Robert Ridgeway, Evansville, Illinois
Night and day difference once installed.
Dennis Munn, Macon, Georgia
Very easy to change out. I'll be changing all my further filters from now on.
Matthew Thomas, Saint Augustine, Florida
Excellent!
PF-4000 K&N PF-4000 Fuel Filter
List Price: $54.89
Your Price: $34.99