Harken Blocks are essential components for sailboats, designed to handle loaded control lines with efficiency and precision. These boat blocks, including small boat blocks and ratchet blocks, come in various configurations to suit different sailing nee
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1-2 weeks delivery time The HC9639 slider car accommodates rope or wire halyards on large cruisers, securely locking halyards while leaving the winch free, measuring 152 mm by 57 mm, with a weight of 529 g and a maximum working load of 3000 kg.
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$ 3,203.94
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1-2 weeks delivery time The HC9702 mounting kit is intended for round mast grooves, providing secure attachment for each track section with 10 slugs per kit, each 19 mm long and weighing 4 g.
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$ 104.64
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1-2 weeks delivery time The HC9703 mounting kit fits flat mast grooves, offering a precise and strong attachment for track sections with 10 slugs per kit, each 19 mm long, weighing 5 g, and accommodating groove gaps from 8 to 11 mm.
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$ 104.64
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1-2 weeks delivery time The HC9704 mounting kit is designed for wide flat mast grooves, ensuring secure track attachment with 10 slugs per kit, each 19 mm long and weighing 6 g, fitting groove gaps from 11 to 16 mm.
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$ 104.64
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1-2 weeks delivery time The HC9733 Tensioner T-Track is made of 6061-T6 aluminum with a hardcoat-anodized finish, providing durable, self-locking performance over its 750 mm length and 32 mm width, weighing 0.595 kg.
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$ 638.61
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1-2 weeks delivery time The Harken HC9953 40mm T-Track is constructed from high-strength 6061-T6 aluminum with a hardcoat-anodized finish for superior wear resistance. It provides secure self-locking functionality along its 1500 mm length, making it ideal for marine use. Dimensions include a 40 mm width, 1500 mm length, and 1717 g weight, with an endstop B811. Item number: HKHC9953.
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$ 1,666.93
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1-2 weeks delivery time The Harken HCI006BCC -6 Single-Acting Integral Backstay Cylinder with a 25 mm bore enhances sail performance with precise mast tension control. It features a built-in single-acting pump, hardcoat-anodized aluminum construction, and a stainless steel handle that can be locked or removed. It includes clevis pins, a fiberglass tension indicator, and pressure-release safety. Weight: 3.79 kg, stroke: 360 mm, pull force: 1710 kg. Item number: HKHCI006BCC.
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$ 3,947.19
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1-2 weeks delivery time The Harken HCI010BCC -10 Integral Backstay Cylinder features a 35 mm bore and single-acting hydraulic pump for effortless sail shape and mast tension adjustments. Made from hardcoat-anodized aluminum with a stainless handle, it includes clevis pins, a fiberglass indicator, and a pressure-release knob for safety. It weighs 3.79 kg, with a 360 mm stroke and 2130 kg pull force. Item number: HKHCI010BCC.
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$ 3,947.19
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1-2 weeks delivery time The Harken HCI012BCC -12 Integral Backstay Cylinder with a 40 mm bore offers precision and reliability for both racers and cruisers. Built from hardcoat-anodized aluminum, it includes a stainless handle, clevis pins, and a fiberglass position indicator for repeatable settings. It has a 360 mm stroke, 9.72 lb weight, and a 3040 kg pull force. Item number: HKHCI012BCC.
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$ 4,329.65
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1-2 weeks delivery time The Harken HCI017BCC -17 Integral Backstay Cylinder with a 45 mm bore ensures smooth mast tension control through its integrated single-acting pump. Made of hardcoat-anodized aluminum, it includes a stainless handle, clevis pins, and a fiberglass position indicator. It features a 360 mm stroke, 9.72 lb weight, and 3800 kg pull force. Item number: HKHCI017BCC.
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$ 4,329.65
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1-2 weeks delivery time The Harken HCP1717 80 Amp Circuit Breaker provides dependable protection for 12V and 24V marine systems. Compact and weather-resistant, it is waterproof and ignition-protected for long-term reliability in harsh environments. Item number: HKHCP1717.
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$ 168.38
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1-2 weeks delivery time The Harken HCP1718 100 Amp Circuit Breaker is designed for 12V electrical systems, combining compact panel-mount design with waterproof and ignition-protected construction to ensure reliable operation in marine conditions. Item number: HKHCP1718.
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$ 168.38
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1-2 weeks delivery time The Harken HCP1719 150 Amp Circuit Breaker for 12V systems is engineered for heavy-duty electrical protection. Compact, waterproof, and weather-resistant, it is ideal for high-load winch setups such as Classic B70.2STE to B980.2STE. Item number: HKHCP1719.
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$ 168.38
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1-2 weeks delivery time The Harken HCP1720 135 Amp Circuit Breaker offers high-amperage protection for 12V systems in compact, durable form. Designed for marine use, it is waterproof, weather-resistant, and ignition-protected to ensure consistent performance. Item number: HKHCP1720.
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$ 168.38
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1-2 weeks delivery time Harken HFG301 is a fastener built for the MKIII Unit 3 Hydraulic Furling System, ensuring secure attachment and dependable performance in high-demand conditions. Item number: HKHFG301.
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$ 0.72
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1-2 weeks delivery time Harken HFG341 is a connector fastener set crafted for MKIV Unit 0, featuring small yet sturdy components that provide accurate and lasting connections. Length: 4 mm / 5/32 in, Width: 2 mm / 3/32 in, Fits: MKIV Unit 0, Item number: HKHFG341.
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$ 36.08
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1-2 weeks delivery time Harken HFG343 is a compact fastener set made for MKIV Unit 1, offering dependable components that support effective assembly and ongoing maintenance. Length: 4 mm / 5/32 in, Width: 2 mm / 3/32 in, Fits: MKIV Unit 1, Item number: HKHFG343.
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$ 26.70
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1-2 weeks delivery time Harken HFG348 is a versatile connector fastener set compatible with various MKIV units, providing precise dimensions and reliable fitting for multiple models. Length: 6 mm / 1/4 in, Width: 3 mm / 1/8 in, Fits: 7412.10, 7412.11 5/8, 7412.13 12V, 7412.13 24V, Item number: HKHFG348.
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$ 36.08
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1-2 weeks delivery time Harken HFG349 is a precision connector fastener set designed for MKIV Unit 3, including one component essential for achieving secure and stable connections. Length: 6 mm / 1/4 in, Width: 3 mm / 1/8 in, Quantity required: 1, Fits: MKIV Unit 3, Item number: HKHFG349.
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$ 53.76
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1-2 weeks delivery time Harken HFG889 is a torque tube foil key with bumper, built for Unit 00 to securely lock the foil to the lower unit, ensuring consistent and stable operation. Item number: HKHFG889.
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$ 137.46
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What are the key features of a Harken Element Block and how is it used in sailing?
Harken Element Blocks are designed with durability and performance in mind, featuring a combination of aluminum side plates and composite sheaves. These blocks are ideal for a variety of sailing applications, from halyards to control lines. Their bearing system ensures smooth operation under both high and low loads, making them suitable for fast trim and release. Available in various configurations such as single block, fiddle block, and snatch block, they cater to the diverse needs of sailors.
The 16mm Micro Block is perfect for light load applications on small sailboats, while the 75mm Carbo Block is better suited for handling larger loads on bigger boats. Harken’s selection of blocks, including the Element Fiddle and Carbo Fiddle Block, are considered some of the best in the industry, providing reliable performance for both cruising and racing scenarios.
How does a fiddle block differ from a single block in terms of functionality
A fiddle block differs from a single block in that it has two sheaves, allowing it to manage more complex rigging setups and offer greater mechanical advantage. This makes it ideal for applications where precise trimming and efficient release under high or low loads are required. Fiddle blocks, like the 16 mm and bullet blocks in Harken's selection of sailboat blocks, are essential for leading control lines aft and ensuring smooth operation in various sailing conditions.
How does a micro block differ from a standard block in terms of usage on a sailboat?
A micro block differs from a standard block in terms of size and weight, making it ideal for applications where space and weight savings are crucial. Classic blocks, such as those in the selection of Harken blocks, include micro blocks designed for smooth and efficient trim and release under high loads. These compact blocks, like the triple carbo, are made with high-quality materials to ensure durability and performance, making them some of the best blocks available in Harken hardware.