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Harken Headsail Furling Unit 1 MKIV
For boats 28ft-36ft
Wire diameter 1/4-in. , 9/32-in.
Headstay length 45-ft. 11-in. , maximum 52-ft. 11-in.
Toggle assembly required-available size 1/2-in. pin(7411.20 1/2)

MKIV furlers feature multiple rows of free-rolling Torlon® ball bearings in high-load areas, computer-designed stacked bearing races and large-diameter drums for smooth reefing and furling. A free-spinning, high-strength halyard swivel reduces weight aloft to minimize pitching and heeling. Independent head and tack swivels shape the sail when partially furled. The aluminum line guard, torque tube and swivels are deep-saturation Hardkote anodized for strength and durability, with a black additive for no-fade UV stabilization and corrosion protection.

Installation is easy: C-shaped open connectors with low-friction plastic isolators slip onto the headstay wire and into the foil without the need to cut your headstay. The foils twin grooves and smooth feeder allow fast hoists, douses, and sail changes—Ideal for club racing.