Donaldson - 550934 - Oil Filter

This engine oil filter removes particulate and sludge from the lubricating oil circuit before the oil reaches the main bearing journals and crankshaft. It mounts on the engine block and receives oil from the pump; a bypass valve in the filter head opens if the element becomes restricted, allowing continued lubrication at the cost of filtration. A clogged filter causes the bypass valve to open prematurely, sending unfiltered oil through the engine and accelerating wear on bearing surfaces. The manufacturer matches the original thread and seal-face geometry so the filter seats correctly against the housing without requiring an adapter. On installation, lubricate the gasket face with clean oil and tighten to the specified torque.