Gear Oil Pump: Designed for quart bottles, this lower unit gear oil pump simplifies gear lube refills and changes, keeping your boat's engine lubricated and running smoothly. Avoid messy spills and the hassle transferring fluids Quart Bottle Pump: The 28mm gear oil transfer pump threads fit standard quart-sized bottles, ideal for motor oil, ATF, and gear lube. Compatible with US 32oz, Quart, and 946ml bottles. 2 Suction Tube: Comes with 2 rigid suction tubes, the gear lube pump can reach to bottom of tall and short gear oil bottles WIDE COMPATIBILITY: This transmission fluid pump kit comes with a 3/8-16 adapter that fits popular brands like OMC, Mercruiser, Evinrude, Johnson, Volvo, Force, Honda 70hp and up, and Mercury US origin. Extra Adapters: FUELIO differential fluid pump includes 8mm and 10 mm adapter fits foreign outboards like Yamaha, Nissan, Tohatsu, small Honda's, and Mercury Japanese origin. Good Sealing with O-Ring: The gear oil pump for quart bottle comes with an O-ring seal for secure connections and detachable tubing for easy cleaning. Easy To Use: Simply attach to your lower drain hole and pump gear lube into your engine. Universal Hand Pump: Ideal for transferring fluid between containers or to engines, cooling systems, and more. Perfect for boats, motorcycles, RVs, and other vehicles with engines. Marine Lower Unit Gear Oil Pump For Quart Bottles - Transmission Fluid Pump For Marine Boat Engine Motor Automotive Car Change, 3/8 inch Swivel, 8mm & 10mm Adapter