Image is for illustration purposes only. Actual part may vary.

P550777

LUBE SPIN-ON

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.