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Advance HCT400A Heavy Duty Marine Gearbox 6.09:1 Reduction
Advance HCT400A-609 Heavy Duty Marine Gearbox HCT400A-609 delivers a specialized 6.09:1 reduction ratio as a marine propulsion transmission system for Heavy Displacement Trawlers & Tugboats field integration.
- Mechanical Reduction Ratio: Absolute 6.09:1 Reduction Ratio.
- Max Propulsion Power: 450HP (335kW) Power Capacity @ 1800 RPM.
- Maritime Certification: CCS / ZC Approved.
- Transmission Clutch: Hydraulic Power Shift Technology.
- Bell Housing Standard: SAE 0 / SAE 1 Standard Position.
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Description
Advance HCT400A 6.09:1 Gearbox
Dominating the requirements of massive displacement vessels, the Advance HCT400A represents the definitive mechanical solution for a high-ratio physical bridge to propulsion. As a premier Advance marine gearbox, this unit utilizes a 6.09:1 reduction to deliver superior hydrodynamic low-speed torque for heavy-duty tugs and trawlers. The hardware architecture focuses on extreme load management, ensuring this Advance power system converts high engine RPM into immense rotational force for large-diameter propellers.
Technology-driven mechanical performance provides total protection through an advanced internal lubrication system that services all gears and bearings under extreme pressure. This Advance marine transmission features a reinforced output shaft and heavy-duty housing to facilitate operation in the most punishing offshore conditions. Reliability is reinforced by the industrial-grade gear hobbing and thermal management systems designed for professional maritime service. This unit is the premier choice for mariners prioritizing professional maritime power and extreme reduction capabilities.
Key Technical Specifications
- 6.09:1 extreme reduction gear ratio.
- HCT400A high torque series architecture.
- Advanced internal pressurized lubrication system.
- Reinforced output shaft and flange.
- Designed for heavy displacement hulls.
- Integrated cooling and thermal management.
- Industrial grade deep sea architecture.
Advance HCT400A Specialized Marine Transmission - 6.09:1 Ratio
| Brand | Advance |
| Model / SKU | HCT400A-609 |
| Country of Origin | China |
| US Support / Warranty | 1-Year Limited Warranty |
| Reduction Ratio | 6.09:1 |
| Transmission Capacity | 0.25 HP / RPM (0.19 kW / RPM) |
| Max Input Power | 450 HP (335 kW) @ 1800 RPM |
| Max Input Speed | 1800 RPM |
| Bell Housing Standard | SAE 0 / SAE 1 |
| Clutch Type | Hydraulic Power Shift |
| Max Propeller Thrust | 20,232 LBF (90,000 N) |
| Center Distance | 14.17" (360 mm) |
| Oil Capacity | 7.92 Gallons (30 Liters) |
| Dry Weight | 2,094 lbs (950 kg) |
| Dimensions (LxWxH) | 36.2" x 41.3" x 42.0" |
| Classification / Certs | CCS / ZC Approved |
| Primary Application | Heavy Displacement Trawlers & Tugboats |







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