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 Harken 3239 75mm Black Magic Runner Block With Becket supports mast bend adjustment in offshore sailing conditions. Its integrated bails and recessed cotter key create a streamlined design, while Hard Lube-anodized sheaves and sideplates resist UV wear. Torlon® roller bearings stay separated and aligned to maintain smooth, efficient line handling.
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$ 1,089.64
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1-2 weeks delivery time The Harken 3240 75mm Black Magic 1-Sheave High-Load Padeye Block is designed for masthead or direct padeye attachments, allowing fair leads without deck contact. Ideal for backstay applications, it features Hard Lube-anodized sideplates and sheaves for UV protection. Torlon® roller bearings stay parallel and separated within a center cage to reduce friction.
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$ 779.34
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1-2 weeks delivery time The Harken 3241 75mm Black Magic Spriddle Block Swivel is a lightweight, high-performance block for racing or cruising sail controls. With Torlon® bearings aligned in a center cage, it delivers smooth, powerful operation. The shackle swivels or locks to avoid line twisting, making it suitable for mainsheet, halyard, runner, and spinnaker systems.
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$ 1,421.58
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1-2 weeks delivery time The Harken 3242 75mm Black Magic Spriddle Block Swivel with Becket delivers reliable control for performance sailors. Lightweight yet durable, it features Torlon® roller bearings arranged in a center cage for smooth operation. The swivel shackle locks in two positions to prevent twisting, while the added becket increases versatility for sail handling systems.
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$ 1,544.25
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1-2 weeks delivery time The Harken 3243 75mm Black Magic 1-Sheave Aluminum Low-Load Block Swivel is crafted for frequent sail trimming with light weight and low friction. It features a red isolator, Delrin® ball bearings, and corrosion-resistant stainless components. The shackle swivels or locks to keep lines aligned under varying loads for smooth, reliable operation.
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$ 696.35
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1-2 weeks delivery time The Harken 3244 75mm Black Magic Aluminum Stand-up Block offers strength and fluid operation for high-performance sailing. Hard Lube-anodized sheaves and sideplates provide UV resistance and smooth movement, while Torlon® roller bearings are separated in a center cage to minimize friction. It mounts with a padeye and supports dynamic sail control under load.
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$ 1,147.35
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1-2 weeks delivery time The Harken 3245 100mm Black Magic Aluminum Loop Block combines lightweight construction with impressive strength for mainsheet, halyard, and spinnaker applications. The center cage separates Torlon® bearings for low-friction performance, while its soft-attachment loop and removable deadend post enable secure and adaptable mounting to padeyes or lashings.
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$ 1,154.58
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1-2 weeks delivery time The Harken 3246 100mm Black Magic 1-Sheave Aluminum Block Swivel is designed for high-performance sailing with smooth, low-friction operation. Its Torlon® roller bearings ensure efficiency, and the swivel shackle can rotate or lock to prevent twisting. Built for mainsheet, halyard, and spinnaker use, it delivers dependable strength under heavy loads.
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$ 1,100.46
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1-2 weeks delivery time The Harken 3247 100mm Black Magic 1-Sheave Aluminum Block Swivel with Becket provides durable, twist-free performance for sailors. Its Torlon® roller bearings, separated in a center cage, minimize friction, while the shackle swivels or locks securely. Ideal for demanding sail control systems such as mainsheets and halyards in heavy-load environments.
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$ 1,432.40
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1-2 weeks delivery time The Harken 3248 100mm Black Magic 2-Sheave Aluminum Block Swivel delivers exceptional load capacity for advanced deck systems. Dual sheaves and Torlon® roller bearings within a center cage ensure low-friction line handling, while the shackle can swivel or lock for stability. It’s designed for mainsheet, halyard, and spinnaker control under maximum tension.
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$ 2,338
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1-2 weeks delivery time The Harken 3249 100mm Black Magic Aluminum Footblock provides reliable deck line redirection and temporary sheet locking. Hard Lube-anodized sideplates and sheaves resist UV damage and ensure smooth performance. Torlon® bearings within the center cage minimize friction, while metric and imperial fasteners allow strong, hidden mounting for a clean setup.
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$ 985
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1-2 weeks delivery time The Harken 3250 Black Magic Aluminum 2-Sheave Foot Block is designed for smooth, efficient line redirection on deck, featuring Hard Lube-anodized sideplates and sheaves, Torlon® roller bearings for alignment, and hidden flathead fasteners for a clean finish.
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$ 1,775.15
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1-2 weeks delivery time The Harken 3251 Black Magic Runner Block provides precise mast bend control for offshore yachts, incorporating integrated sideplate bails, recessed cotter key, Hard Lube-anodized aluminum, and Torlon® bearings for minimal friction.
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$ 1,443.23
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1-2 weeks delivery time The Harken 3252 Black Magic Runner Block With Becket offers reliable control for running backstays, with Hard Lube-anodized sideplates and sheaves, Torlon® roller bearings, and recessed fittings for a smooth, snag-free profile.
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$ 1,666.93
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1-2 weeks delivery time The Harken 3253 Black Magic 1-Sheave Aluminum Padeye Block is ideal for masthead applications, providing limited articulation for halyard alignment, Hard Lube-anodized protection, and smooth operation with Torlon® bearings.
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$ 1,212.29
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1-2 weeks delivery time The Harken 3254 Black Magic Aluminum Stand-up Block is engineered for active sail control systems, combining lightweight strength, Hard Lube-anodized surfaces, Torlon® roller bearings, and padeye compatibility for high-performance yachts.
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$ 1,432.40
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1-2 weeks delivery time The Harken 3255 Black Magic Aluminum Loop Block delivers exceptional strength and smooth operation for mainsheet, runner, halyard, and spinnaker systems, featuring a lightweight aluminum build, precision bearings, and a removable deadend post.
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$ 1,544.25
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1-2 weeks delivery time The Harken 3256 Black Magic 1-Sheave Aluminum Block Swivel prevents line twist under heavy loads and ensures durable, free-running operation for mainsheet, halyard, and spinnaker applications.
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$ 1,565.89
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1-2 weeks delivery time The Harken 3257 Black Magic Foot Aluminum Footblock provides durable, low-friction line redirection on deck, with a Hard Lube-anodized finish and secure mounting for professional sailing setups.
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$ 1,338.59
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1-2 weeks delivery time The Harken 3258 Black Magic 2-Sheave Aluminum Footblock ensures smooth line control for deck-mounted systems, featuring a dual-sheave design, Hard Lube-anodized finish, and high load capacity.
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$ 3,074.05
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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.