UniPower 900 Radial Line® Winch

Part No.

Low-profile electric winch

  • This single-speed winch combines the advantages of a low-profile manual winch with the power of a 12- or 24-volt, low-amp-draw motor.

  • The motor is partially imbedded inside the drum, so that it extends only 105 mm (4 1/8″) below the winch base.


Oceanic block bearings

The gripping surface geometry is optimized for each drum material.

Oceanic block bearings

If there is a loss of power, the UniPower can be operated manually using a standard winch handle.

Winching applications where space is at a premium and low current draw is important.

The drum features the Harken Radial grip for minimal line wear and controlled easing. The low-amp, high-efficiency motor, and the low friction of the roller bearings, minimize power draw. Winches include a waterproof switch and a one-speed control box. A built-in current controller protects hardware by electronically limiting the winch’s maximum pull. The UniPower can be driven by a standard handle if there is a loss of power.

UniPower Radial drums are available in hardcoat-anodized aluminum (900UPWA), or mirror-finished chromed bronze (900UPWAC). The stripper arm and load-carrying gears are stainless steel for strength and durability. High-strength composite self-tailing jaws and skirt save weight. Composite roller bearings are lightweight, reliable, and maintenance-free.

Harken recommends professional installation, with wiring checked by a certified electrician.

Apply a light coat of grease to the gears, and oil the pawls and springs. Remove dirt with a mild solvent. Periodically check electrical connections.

For detailed product dimensions, please click on the ‘Other Information’ tab below.

Or visit our marine site.

Other Informations





From 12 kg (26.5 lb) for the 900UPWA

Rope diameter

8 – 14 mm (5/16 – 9/16″)