Description
MB2F – Donaldson P551316 is a heavy-duty spin-on diesel fuel filter designed to remove fine contaminants and protect fuel injection components from premature wear. It is commonly used in Caterpillar equipment and industrial/marine engine applications, with CAT 1R-0755 as a primary OEM reference. Donaldson lists it at 99% efficiency at 4 micron and 99.9% at 5 micron.


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