Upgrade Lower Unit Gear Oil Pump for Standard Quart Bottles, Includes 3/8 inch 8mm 10mm Metal Adapters, Compatible With Most Marine and Mercury Boat Outboard Motors(Not Fit Volvo Penta)

Contains 3 adapters, suitable for outboard engines of multiple brands (excluding Volvo).Galvanized steel material, rust-proof and leak-proof, durable and reusable.Each pump 8 ml, precise oil control, avoid over-filling and overflow waste.Dual suction tubes are suitable for standard oil bottles, easy operation without tools.

• 3-in-1 Adapters for Universal Fit: Includes 3 interchangeable adapters: 3/8"-16 (for Mercury, Mariner, and U.S.-made outboards), 8mm-1.25, and 10mm-1.25 (for Yamaha, Honda, Evinrude, and foreign-made outboards). Note: Not compatible with Volvo Penta. Ensures a tight seal across most outboard engine models.
• Galvanized Steel Adapters: All adapters are crafted from galvanized reinforced steel (no plastic parts), resisting rust, wear, and leaks. The pump body combines durable plastic and rubber for long-term use—withstands repeated pressure and oil exposure, reusable for multiple oil changes.
• Precise Oil Control: Each pump stroke dispenses a steady 8ml (0.27oz) of oil, letting you control volume to avoid overfilling. Perfect for gear cases, where precise oil levels are critical for engine performance.
• 2 Straw Design Fits Standard Oil Bottles: Comes with 2 rigid suction tubes to reach the bottom of both tall and short quart bottles—ideal for 32oz (946ml) gear oil bottles. The pump cap fits standard 28mm (1.125") bottle openings, screwing on tightly for spill-free pumping.
• Tool-Free, Mess-Free Operation: Screw the pump onto your oil bottle. Attach the correct adapter to your engine’s fill port. Pump to transfer oil—no spills, no wasted oil. Saves time vs. manual pouring, making gear oil changes cleaner and easier for DIYers and mechanics.