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Harken 2641 40mm Carbo Air Triple Block with Swivel and Becket

Manufacturer

Harken

<h3>About Harken: Performance Marine Hardware Since 1967</h3><p><strong>Harken</strong> is one of the most recognized names in performance marine hardware, with a legacy stretching back to 1967. <a href="/14853-harken">Harken</a> was founded in a 60-foot trailer by brothers Peter Harken and Olaf Harken, who set out to engineer better sailboat hardware than anything the market had to offer. Their early breakthrough — the plastic recirculating ball bearing block — redefined how sailors managed lines under load and launched a brand that would go on to dominate competitive sailing at the highest levels.</p><p>Headquartered in Pewaukee, Wisconsin, and with a major manufacturing facility in Limido Comasco, Italy, Harken operates as an employee-owned company with distribution spanning 48 countries. From club racing dinghies to grand prix offshore programs, Harken hardware has been aboard winning boats for decades — making its Olympic and America's Cup debuts in 1976 and 1977, respectively.</p><h3>A Full Range of Marine Hardware</h3><p>Harken's product lineup is broad by design. The company works hard to be the technological leader in sailboat blocks, deck hardware, winches, and hydraulics, as well as safety and rescue equipment and services. Their marine catalog includes small boat and big boat blocks, travelers and genoa leads, mainsail and headsail handling systems, winches, hydraulics, mooring solutions, and a robust line of spare parts and accessories.</p><p>At the core of it all are Harken's renowned <a href="/14853-harken-pulleys-blocks-200822">Pulleys &amp; Blocks</a> — the product category that started it all. Whether you're outfitting a high-tech racing dinghy or a bluewater cruising yacht, Harken blocks are engineered for high-load capacity, corrosion resistance, and the smoothest possible operation. The lineup spans sheave sizes from 16 mm all the way to 75 mm, with single, double, triple, fiddle, and soft-attach configurations to cover virtually every application on deck.</p><p>Beyond sailing, Harken also produces a dedicated line of sportfishing <a href="/14853-harken-pulleys-blocks-202394">Pulleys &amp; Blocks</a> engineered for the unique demands of offshore fishing. These compact, high-load pulleys are built for outrigger systems, dredge rigging, and heavy-duty line management — bringing the same patented bearing technology that excels on race courses to the rigors of the fishing cockpit.</p><h3>Why Sailors Trust Harken</h3><p>What sets Harken apart is a relentless commitment to engineering. Each product category is developed with input from top sailors, sailmakers, and boat designers — and the results speak for themselves on race courses worldwide. Harken hardware is a consistent fixture on America's Cup campaigns, Volvo Ocean Race fleets, Olympic classes, and everything in between. For cruisers, that race-proven performance translates into gear that is more reliable, longer-lasting, and more responsive than the alternatives.</p><ul><li>Employee-owned company with decades of marine engineering expertise</li><li>Manufacturing in the USA and Italy, with global distribution in 48 countries</li><li>Patented bearing systems engineered for high loads and minimal friction</li><li>Product lines covering everything from small dinghies to superyachts</li><li>Trusted at the Olympic Games and America's Cup since the 1970s</li></ul>

Part Number

2641
07/11/2036 12:18 PM
Sale Price

$126.09

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Product Details

The Harken 2641 40mm Carbo Air® Triple Block with Swivel and Becket is a high-performance, ball-bearing sailing block engineered for racers and performance sailors who demand maximum efficiency at minimum weight. Part of Harken's award-winning Carbo Air® line, this triple block delivers a reliable 3:1 purchase system with a swivel and integrated becket for versatile rigging configurations.

Key Features:

  • Lightweight Construction: Consistently 30% lighter than equivalent Classic blocks, reducing overall boat weight and improving handling
  • Superior Strength: 60% higher working load capacity than Classic blocks, with a maximum working load of 1,455 lbs (660 kg)
  • High-Strength Sideplates: Nylon-resin sideplates densely packed with long-glass fibers deliver a compact block with an outstanding strength-to-weight ratio
  • Low-Friction Ball Bearings: Sheaves spin on high-load ball bearings with fitted races for smooth, efficient line movement under load
  • UV-Stabilized Materials: Sheave, ball bearings, and sideplates are UV-stabilized with black additive for long-term protection in marine environments
  • Swivel Attachment: Patented swivel design locks the shackle in front or side positions, or allows the block to freely swivel to prevent line twisting
  • Becket Included: Integrated becket provides a fixed attachment point for the standing end of the line, enabling efficient multi-part purchase systems
  • Maximum Line Diameter: Accepts up to 10mm (3/8 in) line
  • Sheave Diameter: 40mm (1-9/16 in)

Ideal for jib and mainsheet systems on high-performance dinghies and for heavily loaded control lines on small keelboats, the Harken 2641 is a compact, dependable block that delivers race-proven performance. Recipient of both the Dame Award and Sail Magazine's Freeman-Pittman Award for innovation, the Carbo Air® series represents Harken's commitment to fiber-reinforced composite construction and exceptional strength-to-weight engineering.

Products specifications

Diameter

3/8 Inch or 10 mm

Length

4 5/16 Inches

Mount Type

Swivel Shackle

Type

Triple

Weight

0.29

Ball Bearings

Plastic

Becket

Becket

Direction

Any

Integral Cleat

No Integral Cleat

Ratchet

Non Ratcheting

Safe Working Load

1455 Pounds

Sheave Diameter

40 mm

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