Performance Headsail Handling
Designed for performance racing and cruising sailors, MKIV furling systems are strong, lightweight and aerodynamic, with the performance and features Harken is known for. Longevity, ease of use, and simplicity of installation are crucial components of the design. These free-rolling systems make all the difference in headsail control, allowing racers and cruisers to quickly furl and reef while maintaining great sail shape and optimal speed. Smoothly unfurl your headsail instead of hoisting a large genoa in light air. Now you can stay off the foredeck during a blow and rely on the furler for ‘crew’ when sailing shorthanded.
Easy Reefing and Furling
This strong, lightweight furler features multiple rows of Torlon® ball bearings in high-load areas to minimize friction for smooth furling. Bearings require no lubrication or isolating seals. Stacked bearing races in the halyard swivel evenly distribute radial and thrust loads to ball bearings; foils turn freely under halyard loads.
Built to Last
Foils and drum are securely connected with strong robust clamp to handle the high torque loads created when sails are reefed and furled in heavy air.
Durable Triple-Lock Foil Joints
Tough triple-interlock foil joints withstand years of torque loading. Connector and geometric shape interlocks to foil and secures by coating engineered channel system with a syringe-injected adhesive. Screws provide a final lock.
Long-Lasting Protective Finish
Aluminum line guard, torque tube and swivels are deepsaturation Hardkote-anodized for no-fade UV-stabilization, strength and durability. The Hardkote-anodized line guard is urethane coated for additional corrosion protection. Specially formulated low-stretch black line is abrasion and UV resistant; standard on units 0, 1 and 2.
More Furling Power
Large inner spool diameter increases mechanical advantage for powerful reefing and furling. Smaller outside dimension allows unit to fit narrow bows or below deck. Unit rotates around rod or wire headstay so furling bearings do not carry the headstay load for easy furling. Independent halyard swivels furl sail center before head and tack for improved sail shape and upwind pointing.
- For boats 35' - 46'' (10.6 - 14.2m)
- Headstay Length: Standard 60' 4" (18.38m); max 67' 4" (20.51m)
- Headstay: Wire: 5/16", 3/8" (8, 10mm); Rod: -12, -17, -22 (7.14, 8.38, 9.53mm)
- Clevis Pin: 5/8", 3/4" (15.9, 19.1mm)
Required Toggle Assembly Sold Separately
Harken MKIV and Cruising Furling Systems require a toggle assembly to match pin size and headstay configuration. Choose from options below. For assistance in selecting the proper toggle assembly, please contact us.
This H7412.10 has minor cosmetic damage to the top of the torque tube and the drum cover. Damage was incurred in shipping. The unit is functional and otherwise undamaged. Sold "as-is", no returns. Toggle or leg kit must be purchased separately.