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Harken Underdeck Furling System - 5mm Luff Wire

Item #


Product Description

Harken Underdeck Furling System - 5mm Luff Wire
Small Boat underdeck furling units are ideal for sportboats and daysailers from 4.8 m to 9 m (16 to 30 ft). The drum is located beneath the deck, lowering the tack height for maximized sail area. An optional hoistable ball bearing halyard swivel can be installed on your headstay so you can raise or lower the sail without removing the headstay. Swivels are independent of the headstay, allowing you to tension the luff separately from the mast rake.


  • Pin-to-pin length: 7 3/8 in. (188 mm)

  • Drum Ø: 4 in. (102 mm)

  • Minimum line Ø: 5/32 in. (4 mm)

  • Maximum line Ø: 3/16 in. (5 mm)

  • Jaw width: 3/8 in. (10 mm)

  • Maximum luff wire Ø: 3/16 in. (5 mm)

  • Clevis pin Ø: 5/16 in. (7.9 mm)

  • Weight: 50.5 oz. (1433 g)

  • Maximum working load: 2000 lbs. (907 kg)

  • Footnote: Includes drum and upper swivel. Does not include hoistable swivel.