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Twin Disc MG-518 Gearbox Marine
Refurbished Twin Disc MG-518 Gearbox Marine 2.00:1 Ratio. Perfect Condition and Ready to Install.
Description
Twin Disc MG-518 is a heavy-duty, hydraulically actuated marine transmission designed for continuous-duty commercial applications, often paired with engines requiring significant torque capacity. It is renowned for its durability in workboats, fishing vessels, and tugs.
SPECIFICATION
Ratio: 2.00:1
Torque Capacity: 800-1,200 lb-ft (1,085-1,627 Nm)
Maximum Input Speed: 2500 RPM
Horsepower Rating:
- Continuous Duty: Up to 900 HP @ 1800 RPM
- Intermittent Duty: Up to 1,050 HP @ 2300 RPM
- Clutch Type: Oil-cooled, hydraulically actuated multi-disc
Input Housing: SAE No. 0 or SAE No. 1
Flywheel Compatibility: 14" or 18"
Dry Weight: 1,400 lbs (635 kg)
Oil Type/Viscosity: SAE 30W engine oil
Oil Capacity: Approximately 18–22 quarts
Cooling System: Internal oil pump with standard oil-to-water heat exchanger
Options: Trolling valve, mechanical/hydraulic PTO, straight or down-angle output
KEY FEATURES
Operation: Suitable for commercial workboats, tugs, and high-load vessels
Rotation: Bi-directional input, supporting left- and right-hand engine rotation
Maintenance: Pressure range of 160-180 PSI @ 1800 RPM and 180°F.
STANDARD FEATURES
Clutch: Oil-cooled, hydraulically actuated multi-disc clutch for smooth engagement
Valves: Equipped with a mechanical selector valve assembly for easy directional shifting
Monitoring: Includes standard pressure and temperature ports for seamless monitoring during operation
Product Details
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