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Harken 2645 40mm Carbo Air Single Block with Swivel and Cam Cleat

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

2645
07/10/2036 11:20 PM
Sale Price

$107.91

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Product Details

The Harken 2645 is a 40mm Carbo Air® single block with an integrated swivel and cam cleat, engineered for high-performance sailing applications where low friction, light weight, and reliable line control are essential. Part of Harken's award-winning Carbo Air® block family, the 2645 delivers an exceptional strength-to-weight ratio at an accessible price point.

Key Features:

  • Lightweight Construction: Consistently 30% lighter than equivalent Harken Classic blocks
  • Superior Strength: 60% stronger than equivalent Classic blocks for confident, high-load use
  • High-Strength Resin Sideplates: Nylon-resin sideplates densely packed with long-glass fibers for a compact, durable build
  • UV-Stabilized Components: Ball bearings, sheave, and sideplates are UV-stabilized with carbon-black additive for long-term protection in marine environments
  • Low-Friction Ball Bearings: Sheave spins on high-load ball bearings with fitted races for smooth, efficient operation
  • Three-Way Swivel Head: Swivels and locks in front or side positions to prevent line twisting and allow quick adjustments
  • Integrated Cam Cleat: Securely holds lines and releases instantly for precise, easy trimming
  • Easy Maintenance: Fully disassembled with a single Allen wrench

Specifications:

  • Sheave Diameter: 1‑9/16" (40 mm)
  • Maximum Line Diameter: 1/4" (6 mm)
  • Maximum Working Load: 150 lb (68 kg)
  • Breaking Load: 300 lb (136 kg)
  • Weight: 4.2 oz (119 g)

Ideal for jib and mainsheet systems on high-performance dinghies, and for loaded control lines on small keelboats. Common applications include main/jib sheets, mainsheet fine-tune systems, control lines, vangs, cunninghams, and outhauls. A recipient of both the Dame Award and Sail Magazine's Freeman-Pittman Award for innovation, the Carbo Air® line represents a benchmark in composite block technology.

Products specifications

Type

Single

Diameter

1/4 Inch or 6 mm

Length

3 3/8 Inches

Mount Type

Swivel Shackle

Ball Bearings

Plastic

Becket

No Becket

Direction

Any

Integral Cleat

Integral Cam

Ratchet

Non Ratcheting

Safe Working Load

150

Sheave Diameter

40 mm

Great prices and great selection

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Easy to oreder - an excellent price.

Shipped right away and arrived in good condition!

Shipping was a bit expensive. Sure you folks didn't have anything to do with that. Would use you again.

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