Насос предпусковой подачи смазки Caterpillar 5251866

The Prelubrication Pump supplies engine oil to the necessary lubrication points before the main engine-driven oil pump becomes active. Ensuring oil is already present in the lubrication system reduces metal-to-metal contact that causes premature wear or damage. This pump is activated before engine ignition, circulating oil from the sump through the oil filter and into the distribution channels, ensuring all rotating and sliding components receive sufficient lubrication. By improving lubrication reliability during startup, the pump enhances component lifespan, minimizes startup wear, and contributes to smoother engine operation.Attributes:• Minimizes risk of seizure in rotating parts.• Ensures smooth engine startup operation.• Prevents dry start damage to engine parts.Applications: The Prelubrication Pump is installed in the engine lubrication system to provide oil circulation before engine start, preventing startup wear, thereby improving reliability and service life.