Advance 300 Heavy Duty Marine Gearbox 4.61:1 Reduction

Plan a marine repower around the Advance 300 Heavy Duty Marine Gearbox 4.61:1 Reduction. This heavy-duty marine transmission is specified for marine propulsion and repower projects, with a 4.61:1 reduction ratio, maximum input power of 737 HP (550 kW) at 2,400 RPM, and a maximum input speed of 2,400 RPM.

Model ADV300-461 pairs a hydraulic multi-disc clutch with a listed transmission capacity of 0.31 HP/RPM (0.23 kW/RPM). the listed specifications include SAE 0 and SAE 1 bell housing standards, 11,240 lbf (50,000 N) maximum propeller thrust, a 10.63-inch (270 mm) center distance, and a 4.22-gallon (16-liter) oil capacity.

Fitment and Propulsion Use

The Advance ADV300-461 is specified for marine propulsion and repower projects. It supports a drivetrain layout requiring a 4.61:1 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 300

Verify that Advance model ADV300-461 matches your marine propulsion or repower project. Confirm the 4.61:1 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 multi-disc clutch, SAE 0/SAE 1 bell housing options, 11,240 lbf (50,000 N) maximum propeller thrust, 10.63-inch center distance, 4.22-gallon oil capacity, 31.5 x 28.5 x 38.0 inch dimensions, 1,433 lb dry weight, CCS approval, and 1-year limited warranty. Confirm compatibility with your engine manufacturer’s documentation before purchase.