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Advance 300 Heavy Duty Marine Gearbox 2.54:1 Reduction
Managing speed-oriented workboat propulsion lines, the 650 kg Advance ADV300-254 inboard boat transmission gearbox handles 737 HP at 2400 RPM with a 2.54:1 ratio during continuous repower operations.
- 2.54:1 ratio matches fast workboat shafts.
- Input speed peaks at 2400 RPM.
- Hydraulic clutch prevents sudden driveline slip.
- Internal reservoir holds 16 liters oil.
- Standard bell housing fits SAE sizes.
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Description
Configure a speed-oriented workboat drivetrain with the Advance 300 Heavy Duty Marine Gearbox 2.54:1 Reduction. This heavy-duty marine transmission is specified for marine repower and speed-oriented workboat applications, with a 2.54:1 reduction ratio, maximum input power of 737 HP (550 kW) at 2,400 RPM, and a maximum input speed of 2,400 RPM.
Model ADV300-254 has a hydraulic multi-disc clutch and a listed transmission capacity of 0.31 HP/RPM (0.23 kW/RPM). the listed configuration identifies 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.
Key Features of Advance 300
- 2.54:1 reduction ratio provides the listed speed-reduction configuration for propulsion-system matching.
- 737 HP (550 kW) maximum input power at 2,400 RPM identifies the listed engine-input rating.
- 2,400 RPM maximum input speed defines the listed input-speed limit.
- 0.31 HP/RPM (0.23 kW/RPM) transmission capacity provides the listed capacity specification.
- Hydraulic multi-disc clutch is specified for the transmission clutch arrangement.
- SAE 0 and SAE 1 bell housing standards identify the listed engine-interface options.
- 11,240 lbf (50,000 N) maximum propeller thrust defines the listed thrust capacity.
- 10.63-inch (270 mm) center distance identifies the listed drivetrain geometry measurement.
- 4.22-gallon (16-liter) oil capacity provides the listed lubricant quantity.
- CCS and ZC approval are listed for this marine transmission.
Fitment and Propulsion Use
The Advance ADV300-254 is specified for marine repower and speed-oriented workboat applications. It supports a drivetrain layout requiring a 2.54:1 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.
Installation and Service Considerations
For a repower installation, confirm the required SAE 0 or SAE 1 bell housing connection, engine alignment, shaft geometry, mounting structure, and propeller-thrust requirement before installation. Plan for the 31.5 x 28.5 x 38.0 inch housing, 1,433 lb dry weight, and 10.63-inch center distance. The listed oil capacity is 4.22 gallons. Follow the engine and gearbox manufacturer’s installation manuals and product instructions for alignment, lubrication, controls, cooling connections, and service procedures.
Before Ordering the Advance 300
Verify that Advance model ADV300-254 matches your marine repower or speed-oriented workboat propulsion project. Confirm the 2.54:1 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/ZC approval, and 1-year limited warranty. Confirm compatibility with your engine manufacturer’s documentation before purchase.
Advance 300 Heavy Duty Marine Transmission - 2.54:1 Ratio
| Brand | Advance |
| Model / SKU | ADV300-254 |
| Country of Origin | China |
| US Support / Warranty | 1-Year Limited Warranty |
| Reduction Ratio | 2.54:1 |
| Transmission Capacity | 0.31 HP / RPM (0.23 kW / RPM) |
| Max Input Power | 737 HP (550 kW) @ 2400 RPM |
| Max Input Speed | 2400 RPM |
| Bell Housing Standard | SAE 0 / SAE 1 |
| Clutch Type | Hydraulic Multi-disc |
| Max Propeller Thrust | 11,240 LBF (50,000 N) |
| Center Distance | 10.63" (270 mm) |
| Oil Capacity | 4.22 Gallons (16 Liters) |
| Dry Weight | 1,433 lbs (650 kg) |
| Dimensions (LxWxH) | 31.5" x 28.5" x 38.0" |
| Classification / Certs | CCS / ZC Approved |
| Primary Application | Marine Repower & Speed-Oriented Workboats |
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