0item in your cart

MKIV Hydraulic Unit 3

MKIV Hydraulic Unit 3

Powerful performance packed into a compact, slim profile makes our hydraulic headsail furlers the ultimate in push-button sail control. Perfect for cruisers and performance cruisers, these free-rolling systems fit wire sizes from 11 - 12 mm (7/16" - 1/2"); rod from -22 to -30 or equivalent fiber stays. Parts and service are available around the world. Standard transmission reduces mechanical friction and pressure loss; engages/disengages the motor’s powered and manual gear drive for efficient operation. Worm gear drive prevents backwinding, unloads hydraulic motor when reefed.

Features

Click the plus sign to learn more

Features 631 632 633 634
Emergency manual operation in case of power loss

Use supplied crank handle or cordless drill adapter, or use standard winch handle.

631
Improved sail shape and boat control

Independent halyard and tack swivels furl sail center before head and tack for improved sail shape when reefed. Lightweight aluminum halyard swivel saves weight aloft to reduce pitching and heeling.

632
Fast hoists, douses, reefs, and sail changes

Precision-extruded, double-groove Air foils for smooth sail handling and fast sail changes. Stainless steel feeder allows fast singlehanded hoist and sail changes.

633
Designed for easy installation

Lower unit fits over existing turnbuckle allowing easy length adjustment. Harken toggle assembly accepts standard turnbuckle using swage, rod, Norseman, or STA-LOK® terminals.

634
MKIV Hydraulic Unit 3

Unit 3 MKIV Hydraulic Furling System

MKIV Hydraulic Unit 3

Furling Toggle Assembly — 19mm Pin

MKIV Hydraulic Unit 3

Furling Toggle Assembly — 22.2mm Pin

MKIV Hydraulic Unit 3

Unit 3 MKIV Foil — 2.13 m

MKIV Hydraulic Unit 3

Unit 3 MKIV Foil Connector Set — 248mm

MKIV Hydraulic Unit 3

-22 Rod Adaptor Stud — Thread UNF 3/4"

MKIV Hydraulic Unit 3

-30 Rod Adaptor Stud — Thread UNF 7/8"

Show more