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Donaldson · Filtration
P557440
In stock · ships from Knoxville
The Donaldson P557440 is a spin-on secondary fuel filter designed for heavy-duty diesel engines and industrial equipment.
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Verified fitment for 3 applications
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All confirmed applications for this part number.
Caterpillar
Other applications
Caterpillar
Other applications
Secondary fuel filter for Donaldson filtration systems. Often found on diesel-powered compressors, generators, and heavy equipment. Verify exact fitment via OEM manual.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 1 of 1.
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It uses cellulose media to capture contaminants down to 9 microns with 99% efficiency, helping to protect fuel injectors and pumps from premature wear. This filter has a 1-14 UN thread, an outer diameter of 3.66 inches, and a height of 6.85 inches. It is commonly used in applications such as Atlas Copco air compressors, Caterpillar generator sets, and Komatsu equipment.
Part Number: P557440
FUEL FILTER, SPIN-ON
Category: Donaldson- F
Dealer: Knox Trailers
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