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Rotary Cutter Gear Boxes
Rotary cutter gearboxes are a core component of your mower’s driveline that helps deliver the torque and speed needed for efficient cutting in tough field conditions. Our line-up includes replacement rotary cutter gearboxes and components designed for a wide range of equipment sizes and applications. Whether you’re maintaining pasture, clearing brush, or handling heavy-duty mowing, you’ll find reliable solutions built for long-lasting performance.
We offer gearboxes in multiple horsepower ratings and configurations to match your equipment (6 spline, 12 spline and 15 spline), including:
40 HP gearboxes for 4 ft. and 5 ft. rotary cutters
75 HP and higher gearboxes for 6 ft. and larger cutters
Heavy-duty options up to 100 HP for demanding applications
In addition to complete gear boxes, Farmer Bob’s also carries essential replacement components like seals, hubs and mounting hardware.
Whether you’re replacing a worn gearbox or upgrading for heavier workloads, Farmer Bob’s provides dependable parts you can trust in the field. Shop the parts you need today!