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Marine Gearboxes & Transmissions
Shop our full range of marine gearboxes engineered for reliable power transmission between your engine and propeller shaft, covering marine reduction gearboxes, reverse gearboxes, and marine transmission units for commercial and recreational vessels. Each unit is built to match specific torque ratings, gear ratios, and mounting configurations so you can find the right fit for your propulsion system.
Whether you’re replacing a worn boat gearbox on an existing vessel or specifying a marine reduction drive for a new build, our catalog is organized by horsepower range, reduction ratio, and engine compatibility to help you source the correct part faster. From compact units for recreational craft to heavy-duty twin disc gearbox alternatives for commercial workboats, every listing includes the technical specs you need to confirm fitment before you buy.
- Wide selection of reduction ratios for optimal fuel efficiency and shaft speed
- Compatible with major marine engine brands for new installs or replacements
- Options for PTO (power take-off) configurations and clutch engagement types
- Rated for commercial workboats, fishing vessels, and recreational marine use
- Detailed specs for horsepower, input speed, and mounting type on every listing
Choose from our marine gearbox collection to keep your vessel running with dependable, engine-matched power transmission built for long-term performance on the water.
FAQ
How do I choose the right marine gearbox for my engine?
Match the gearbox’s input horsepower rating and reduction ratio to your engine’s output and propeller shaft requirements — check mounting configuration and PTO needs before purchasing.
What’s the difference between a marine reduction gearbox and a reverse gearbox?
A reduction gearbox lowers shaft speed relative to engine RPM for efficient propeller performance, while a reverse gearbox adds forward/neutral/reverse gear selection for vessel maneuvering.
Are marine gearboxes compatible with all engine brands?
Compatibility depends on input specifications and mounting type rather than brand alone — check horsepower rating, bolt pattern, and shaft coupling against your engine’s specs before ordering.