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Donaldson · Filtration
P550431
In stock · ships from Knoxville
The Donaldson P550431 is a secondary spin-on fuel filter designed to capture fine contaminants down to 9 microns with 99% efficiency, protecting your fuel injectors and pump from wear.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 4 applications
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All confirmed applications for this part number.
Other applications
Other applications
May also fit other vehicles using cross-referenced filters, but primary fitment is for Mack trucks.
Part data verified against 5 catalog sources
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It is typically used as the final filter in two-stage fuel systems on Mack E6, EM-6, and CH613 trucks. Replacing this filter at recommended intervals ensures clean fuel delivery and maintains engine performance.
Part Number: P550431
FUEL FILTER, SPIN-ON SECONDARY
Category: Donaldson- F
Dealer: KP Services Crossville
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