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Refurbished Twin Disc MG-521 Gearbox Marine 2.194:1 Ratio. Perfectly Good Running Condition.
Twin Disc MG-521 Gearbox Marine
$9,800.00
Refurbished Twin Disc MG-521 Gearbox Marine 2.194:1 Ratio. Perfectly Good Running Condition.
The Twin Disc MG-521 is a heavy-duty marine transmission designed for high-torque applications. The specific variant with a 2.194:1 ratio is commonly used in commercial marine, fishing, and workboat applications.
SPECIFICATION
Gear Ratio: 2.194:1
Gear Output/Configuration: Straight Output
Maximum Input Speed: 2500 RPM
Continuous Duty Rating: Up to 1,000 HP @ 1800 RPM
Intermittent Duty Rating: Up to 1,200 HP @ 2300 RPM
Input Torque Capacity: Approximately 1,500 lb-ft (2,034 Nm)
Dry Weight: 1,600 lbs (725 kg)
Input Housing: SAE No. 0 or SAE No. 1
Flywheel Compatibility: 14" or 18"
Clutch Type: Hydraulically actuated multi-disc, oil-cooled
Lubrication: Pressure lubrication system with internal oil pump
Oil Capacity: Approximately 24–30 quarts (approx. 6-7.5 gallons)
Oil Type: SAE 40W or 50W engine oil
Cooling System: Oil-to-water heat exchanger standard
Rotation: Bi-directional input (suitable for LH or RH engines)
Shifting: Hydraulic with fast, smooth, cushioned engagement
Options: Trolling valve, PTO (hydraulic or mechanical)
OPTIONAL FEATURES
Mechanical or hydraulic Power Take-Off (PTO).
Trolling valves (often used for fishing or precise maneuvering).
Electronic shift controls.
Specific References
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