The Gear Lube Pump for Lower Unit is a marine pump designed to transfer lubricating oil efficiently in boat lower units. It ensures smooth operation and longevity of marine gear systems by maintaining proper lubrication. These pumps are durable, corrosion-resistant, and built for reliable performance in harsh marine environments.

Size: Typically ranges from 1/4" to 1" inlet/outlet ports

Grade: SAE 80W-90 or SAE 90 (common for marine applications)

Viscosity: 90-120 cSt at 40°C, 15-18 cSt at 100°C

Buoyancy: Not applicable (submerged operation in lower unit)

Material: Aluminum, bronze, or stainless steel housing; nitrile or viton seals

Flow Rate: 1-10 GPM (varies by model)

Pressure Rating: 50-150 PSI (depends on design)

Temperature Range: -20°C to 120°C (-4°F to 248°F)

Drive Type: Electric (12V/24V DC) or mechanical (engine-driven)

Compatibility: Marine gear oils (API GL-4 or GL-5)