Make routine engine maintenance cleaner and more efficient with the Mercury 802889A1 Crankcase Oil Pump. Designed for marine applications, this manual oil extractor allows you to remove used engine oil directly through the dipstick tube, eliminating the need to drain oil into pans inside tight engine compartments. This helps reduce mess, save time, and simplify the entire oil change process. As a genuine Mercury OEM part, this crankcase oil pump is engineered to fit all MerCruiser sterndrive and inboard engines equipped with a threaded dipstick tube fitting. The secure connection ensures smooth, controlled oil extraction for reliable maintenance. It can also be used with Mercury and Mariner 8 and 9.9hp four-stroke outboards (model year 2004 and earlier) when paired with the appropriate adapter, sold separately. The included outlet hose allows for precise and controlled oil transfer, helping prevent spills and improve efficiency during servicing. Its compact manual design makes it easy to operate, transport, and store, making it a convenient tool for both professional technicians and boat owners. Built with durability in mind, this oil pump delivers dependable performance in marine environments. Whether you’re performing seasonal service or routine oil changes, the Mercury crankcase oil pump provides a cleaner, easier way to maintain your engine and keep it running at peak performance.