Quicksilver Gear Lube Pump - The Quicksilver Gear Lube Pump 8M0072133 is a 16 drain plug that fits any outboard or stern drive. It will allow you to easily replace a lower unit oil. This marine gear lube pump fits all quart and liter bottles so it is versatile enough to be used with almost any machine. There is an adapter included with it that is ideal to use for gear cases with an M 8 x 1.25 drain plug. This Quicksilver pump is a handy piece of equipment to have around for marine repairs and maintenance making it quick and convenient to get back on the water in no time.