Advance HCD400A Heavy Duty Marine Gearbox 4.33:1 Reduction

Match a coastal freight drivetrain with the Advance HCD400A Heavy Duty Marine Gearbox 4.33:1 Reduction. This deep-case marine gearbox is specified for coastal freighters and tugs, with a 4.33:1 reduction ratio, maximum input power of 810 HP (604 kW) at 1,800 RPM, and a maximum input speed of 1,800 RPM.

Model HCD400A-433 pairs a hydraulic multi-disc clutch with a listed transmission capacity of 0.45 HP/RPM (0.331 kW/RPM). The supplied specifications include SAE 0 and SAE 1 bell housing standards, 18,434 lbf (82,000 N) maximum propeller thrust, a 13.98-inch (355 mm) center distance, and a 7.4-gallon (28-liter) oil capacity.

Fitment and Propulsion Use

The Advance HCD400A-433 is specified for coastal freighters and tugs. It supports drivetrain arrangements requiring a 4.33:1 reduction ratio, with engine input limited to the listed 810 HP at 1,800 RPM rating and 1,800 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 HCD400A

Verify that Advance model HCD400A-433 matches your coastal freighter or tug propulsion requirements. Confirm the 4.33:1 reduction ratio, 0.45 HP/RPM (0.331 kW/RPM) transmission capacity, 810 HP (604 kW) maximum input power at 1,800 RPM, 1,800 RPM maximum input speed, hydraulic multi-disc clutch, SAE 0/SAE 1 bell housing options, 18,434 lbf (82,000 N) maximum propeller thrust, 13.98-inch center distance, 7.4-gallon oil capacity, 33.2 x 39.8 x 42.0 inch dimensions, 2,425 lb dry weight, CCS/ZC approval, and 1-year limited warranty. Confirm compatibility with your engine manufacturer’s documentation before purchase.