Advance D300A Heavy Duty Marine Gearbox 7.63:1 Reduction

Configure deep-sea propulsion around a 7.63:1 reduction with the Advance D300A Heavy Duty Marine Gearbox 7.63:1 Reduction. This heavy-duty marine transmission is specified for deep-sea trawlers and harbor tugboats, with a maximum input rating of 737 HP (550 kW) at 2,400 RPM and a maximum input speed of 2,400 RPM.

Model D300A-763 uses a hydraulic power-shift clutch and provides a listed transmission capacity of 0.31 HP/RPM (0.23 kW/RPM). Its supplied interface and service data include SAE 0 and SAE 00 bell housing standards, 15,736 lbf (70,000 N) maximum propeller thrust, a 13.78-inch (350 mm) center distance, and a 5.28-gallon (20-liter) oil capacity.

Fitment and Propulsion Use

The Advance D300A-763 is specified for deep-sea trawlers and harbor tugboats. It supports a propulsion layout requiring a 7.63:1 reduction ratio, with engine input limited to the listed 737 HP at 2,400 RPM rating and 2,400 RPM maximum input speed. Confirm fitment using the engine model, serial number, rated torque, operating RPM, reduction ratio, and manufacturer drivetrain documentation before ordering.

Before Ordering the Advance D300A

Verify that Advance model D300A-763 is correct for your deep-sea trawler or harbor tugboat propulsion system. Confirm the 7.63:1 reduction ratio, 0.31 HP/RPM (0.23 kW/RPM) transmission capacity, 737 HP (550 kW) maximum input power at 2,400 RPM, 2,400 RPM maximum input speed, hydraulic power-shift clutch, SAE 0/SAE 00 bell housing options, 15,736 lbf (70,000 N) maximum propeller thrust, 13.78-inch center distance, 5.28-gallon oil capacity, 36.0 x 32.5 x 45.0 inch dimensions, 1,940 lb dry weight, CCS/ABS grade materials classification, and 1-year limited warranty. Confirm compatibility with your engine manufacturer’s documentation before purchase.