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Donaldson · Filtration
P550757
In stock · ships from Knoxville
The Donaldson P550757 is a primary fuel filter cartridge and water separator for heavy-duty diesel engines.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
We don't publish fitment for this part yet. Rather than guess, get it confirmed against your truck in under a minute.
It uses cellulose media to capture 99% of particles down to 16 microns and removes up to 95% of emulsified water, protecting injectors and fuel pumps. Regular replacement helps prevent fuel system contamination, poor engine performance, and costly injector damage. Always consult your engine or equipment manual for correct service intervals and verify the cartridge dimensions (3.82" OD, 6.74" length) match your filter housing.
Part Number: P550757
FUEL FILTER, CARTRIDGE
Category: Donaldson- F
Dealer: Post Onsite
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