At the core of the Marco OCK1 portable pump kit is a robust bronze gear pump. Add hoses, clamps, clip-on battery leads and fuse, and this kit becomes an easily operated and conveniently transported oil transfer machine. The reversibly pump is designed for transfer of oil and diesel applications.

The pump quickly removes oil from engine or generator crank cases using the included hoses. Insert hose through engine dip tube and pump spent oil into a user supplied container. Then, by simply reversing battery connections, the OCK-1 pump will pump new oil back into the engine. Powerful bronze gear pump design will outlast traditional impeller pump design without the nuisance impeller blade burnout.