Advance HC400 Heavy Duty Marine Gearbox 2.50:1 Reduction
Delivering a 2.50:1 reduction ratio with 810 HP capacity at 1800 RPM, the 820 kg Advance HC400-250 inboard boat transmission gearbox powers speed-oriented commercial repower vessels across demanding waterways.
- 2.50:1 reduction matches commercial shaft setups.
- Max input power handles 810 HP.
- Hydraulic clutch cushions continuous heavy shifts.
- Thrust bearing takes 82000 N loads.
- Heavy cast iron body weighs 820kg.
$8,293.12
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Configure a speed-oriented repower with the Advance HC400 Heavy Duty Marine Gearbox 2.50:1 Reduction. This heavy-duty marine transmission is specified for speed-oriented repower projects, with a 2.50:1 reduction ratio, maximum input power of 810 HP (604 kW) at 1,800 RPM, and a maximum input speed of 1,800 RPM.
Model HC400-250 uses a hydraulic multi-disc clutch and provides a listed transmission capacity of 0.45 HP/RPM (0.331 kW/RPM). Its supplied drivetrain configuration includes 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 HC400-250 is specified for speed-oriented repower projects. It supports propulsion systems requiring a 2.50:1 reduction ratio, subject to matching the engine’s rated torque, operating RPM, SAE 0 or SAE 1 bell housing interface, propeller-thrust requirement, and complete shaft arrangement. 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 HC400-250 is correct for your speed-oriented marine repower project. Confirm the 2.50:1 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, 10.39-inch center distance, 6.07-gallon oil capacity, 33.2 x 37.4 x 35.0 inch dimensions, 1,807 lb dry weight, CCS/ZC approval, and 1-year limited warranty. Confirm compatibility with your engine manufacturer’s documentation before purchase.
Product Specifications
Advance HC400 Heavy Duty Marine Transmission - 2.50:1 Ratio
| Brand | Advance |
|---|---|
| Model / SKU | HC400-250 |
| Country of Origin | China |
| US Support / Warranty | 1-Year Limited Warranty |
| Reduction Ratio | 2.50:1 |
| Transmission Capacity | 0.45 HP / RPM (0.331 kW / RPM) |
| Max Input Power | 810 HP (604 kW) @ 1800 RPM |
| Max Input Speed | 1800 RPM |
| Bell Housing Standard | SAE 0 / SAE 1 |
| Clutch Type | Hydraulic Multi-disc |
| Max Propeller Thrust | 18,434 LBF (82,000 N) |
| Center Distance | 10.39" (264 mm) |
| Oil Capacity | 6.07 Gallons (23 Liters) |
| Dry Weight | 1,807 lbs (820 kg) |
| Dimensions (LxWxH) | 33.2" x 37.4" x 35.0" |
| Classification / Certs | CCS / ZC Approved |
| Primary Application | Speed-Oriented Repower Projects |
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