Main Deck - Sailboat Blocks - Harken Blocks

Harken Blocks

We offer a very broad selection of Harken® blocks, ranging from Small Boat thru Midrange up to their Big Boat blocks. Here you'll find many sizes and configurations for a wide variety of sailboat applications.

The 16mm is Harken's smallest block. It's perfect for small, synthetic control lines found on high-tech dinghies. Low-friction Micro blocks are compact and lightweight, providing fast trim and release under high or low loads. They're ideal for sailboards, smaller dinghies, and lightly loaded control lines on boats of all sizes. Harken's Classic Blocks, both Small Boat and Midrange, are the answer if you've got an older boat and you'd like to enhance its traditional look with performance hardware. Low-friction Carbo AirBlocks® are lightweight, strong and reliable. They're perfect for the small-diameter lines favored by racers. Lightweight, low-friction Wire High-Strength blocks carry wire halyards and high-strength control lines on boats of all sizes.

Big Boat Black Magic® AirBlocks® are strong and lightweight. They have few parts, are easy to clean and service, and have a high strength-to-weight ratio. Use them for sail controls that see lots of action: mainsheet, runner, halyard, and spinnaker systems. Cruising ESP blocks complement Harken's existing blocks in looks and function, but they're simpler in design and construction. They're ideal for halyards or limited purchase systems on cruising boats.

If you need blocks for trimming your headsail, look in Genoa/Jib Blocks & Cars to check out our selection from Harken, as well as Ronstan & Schaefer.
Big Boat "Black Magic AirBlocks"
Big Boat "Cruising ESP" Blocks
Big Boat Mastbase Lead Blocks
Midrange Classic Blocks
Small Boat "Carbo AirBlocks"
Small Boat 16mm Blocks
Small Boat Classic Blocks
Small Boat Flip-Flop Blocks
Small Boat Micro Blocks
Small Boat Wire High-Strength Blocks
Snatch Blocks
Stand-Up Bases & Accessories