The OSP Gearbox Kit HC3 is a complete service solution designed to restore or overhaul the gearbox of HC3 windlass systems. The gearbox is the mechanical link between the motor and the anchor chain drive, ensuring torque is transmitted efficiently and consistently under load. Over time, internal gears, bearings, and seals can wear from repeated use, exposure to saltwater, and high mechanical stress — leading to reduced performance, harsh operation, or inconsistent torque delivery.
This genuine OSP gearbox kit includes all the essential components needed to refurbish your HC3 windlass drive train. Whether you’re servicing a worn unit or rebuilding as part of preventative maintenance, this gearbox kit brings drivetrain performance back to OEM standards.
How It Improves Your Windlass
• Restores smooth torque transmission: Precision gear profiles reduce vibration and noise
• Improves anchoring control: Consistent power delivery during deployment/retrieval
• Extends service life: Replaces worn internal components before they cause further wear
• Maintenance-ready: Designed for overhaul, servicing, or part replacement
Built for Marine Conditions
Constructed from marine-grade, corrosion-resistant materials, the gearbox components are engineered to endure:
• Saltwater and spray exposure
• Moisture and humidity
• Vibration and mechanical loading
• Repeated anchoring cycles
Ideal For
✔ Routine windlass servicing or rebuilds
✔ Replacement of worn gearbox components
✔ Boats equipped with HC3 windlass systems
✔ Boaters seeking smooth, reliable anchoring operation
