As the leading ship supplier in Ross Dependency, Propeller Shaft Alignment Dial Indicator Stands, we specialize in delivering high-quality Lower Unit Gear Oil Pump with unmatched speed and reliability. Trusted by shipowners and masters worldwide, our team ensures your vessel gets everything it needs — on time, every time.
The Lower Unit Gear Oil Pump is a marine pump designed to circulate lubricating oil within the lower unit of marine engines. It ensures smooth operation and longevity of gears and bearings by maintaining proper oil flow. Typically used in outboard and sterndrive systems, it is essential for preventing friction and overheating.
Size: Typically ranges from 1/2" to 2" discharge ports, depending on application.
Grade: API GL-5 or equivalent marine-grade lubricant.
Viscosity: SAE 80W-90 or SAE 75W-90 for most marine applications.
Buoyancy: Not applicable (submerged operation in lower unit).
Material: Housing—aluminum or bronze; gears—steel or composite.
Flow Rate: 5-20 GPM (varies by pump size and engine requirements).
Pressure Rating: 50-150 PSI (depends on design and application).
Seals: Nitrile or Viton for corrosion resistance.
Operating Temp: -20°F to 250°F (-29°C to 121°C).
Compatibility: Saltwater and freshwater use.
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