Advance HC400 Heavy Duty Marine Gearbox 3.42:1 Reduction

Plan a marine repower with the Advance HC400 Heavy Duty Marine Gearbox 3.42:1 Reduction. This heavy-duty marine transmission is specified for marine propulsion and repower projects, with a 3.42:1 reduction ratio, maximum input power of 810 HP (604 kW) at 1,800 RPM, and a maximum input speed of 1,800 RPM.

Model HC400-342 combines a hydraulic multi-disc clutch with a listed transmission capacity of 0.45 HP/RPM (0.33 kW/RPM). the listed specifications include SAE 0 and SAE 1 bell housing standards, 18,434 lbf (82,000 N) maximum propeller thrust, a 10.39-inch (264 mm) center distance, and a 6.07-gallon (23-liter) oil capacity.

Fitment and Propulsion Use

The Advance HC400-342 is specified for marine propulsion and repower projects. It supports a drivetrain layout requiring a 3.42:1 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 HC400

Verify that Advance model HC400-342 matches your marine propulsion or repower project. Confirm the 3.42:1 reduction ratio, 0.45 HP/RPM (0.33 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, 10.39-inch center distance, 6.07-gallon oil capacity, 25.2 x 39.8 x 35.0 inch dimensions, 1,807 lb dry weight, CCS approval, and 1-year limited warranty. Confirm compatibility with your engine manufacturer’s documentation before purchase.