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P550777
The Donaldson P550777 is a spin-on bypass oil filter. Unlike a full-flow filter that cleans all the oil going to the engine bearings, a bypass filter draws a small portion of oil and cleans it to a much finer level, removing tiny particles that can cause long-term engine wear.
It is commonly used on older Cummins engines (like the VT555) found in agricultural sprayers and industrial equipment. You should replace it according to your engine's service schedule to maintain oil cleanliness and extend engine life.
Verified primary application for Cummins VT555 engines used in specific AG Chem sprayers. It is a direct replacement for Cummins part numbers 330432 and 3313289.
Part data verified against 5 catalog sources
Part Number: P550777
LUBE SPIN-ON
Category: Donaldson- F
Dealer: Post Onsite
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