Harken 2156 40mm Carbo Pivoting Lead Block with Aluminum Cam-Matic Cleat

The Harken 2156 is a 40mm Carbo Pivoting Lead Block with Aluminum Cam-Matic® Cleat, engineered for high-load sailing applications where reliable line control and quick cleating are essential. Part of Harken's proven Carbo 40 series, this block delivers the strength and versatility demanded by keelboat sailors, dinghy racers, and catamaran crews alike.

Key Features:

• High-strength pivoting design — ideal for halyard controls on larger keelboats and as a headknocker on dinghies and beachcats for sheeting directly from the boom
• Aluminum Cam-Matic® cleat — hardcoat-anodized for durability in high-load, high-wear, continuous adjustment applications
• Cam reverses for either up or down cleating, adding versatile rigging options
• Drop-in upgrade compatibility — hole spacing and rivet size match Classic models, making retrofits straightforward
• Becket block capable — can be rigged as a becket block for additional purchase configurations
• Maximum working load: 300 lb (136 kg)
• Breaking load: 950 lb (430 kg)
• Maximum line diameter: 3/8 in (10 mm)
• Sheave diameter: 1-9/16 in (40 mm)
• Fastener spacing: 62 mm with 5.0 mm fasteners

The Harken 2156 pivoting lead block is a trusted choice for sailors seeking a compact, lightweight, and dependable block-and-cleat solution. With a packaged weight of just 0.41 lbs, it adds minimal load aloft while delivering professional-grade performance. Backed by Harken's 5-year warranty when properly installed and maintained.