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Harken 2156 40mm Pivoting Block & Cam Cleat

Harken
RRP:$110.94
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Model 2156
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Harken 40mm Pivoting Lead Block — Cam-Matic® Cleat is a high-performance solution designed for efficient line control and secure trimming in dynamic sailing systems. Featuring a pivoting lead block combined with an integrated Cam-Matic® cleat, this setup allows smooth line handling with quick, reliable locking under load.

Commonly used for halyard controls on larger keelboats and as a “head knocker” system on dinghies and beachcats, this block enables direct sheeting from the boom with optimal line alignment. The pivoting base follows the line angle, reducing friction and improving trimming efficiency in constantly changing conditions.

The Cam-Matic® cleat can be reversed for either up or down cleating, allowing flexible setup to suit different sailing preferences. Designed with the same hole spacing and rivet size as Classic models, this block is an easy upgrade for existing installations and can also be used as a becket block for added rigging versatility.

Specifications

Length: 112 mm / 4 1/2 in

Weight: 186 g / 6.6 oz

Sheave Diameter: 40 mm / 1 9/16 in

Maximum Line Diameter: 10 mm / 3/8 in

Maximum Working Load: 136 kg / 300 lb

Breaking Load: 430 kg / 950 lb

Key Features

  • Pivoting lead block for smooth, efficient line alignment
  • Integrated Cam-Matic® cleat for quick, secure line holding
  • Cleat can be reversed for up or down cleating
  • Ideal for halyard controls on keelboats
  • Perfect as a “head knocker” for boom sheeting on dinghies and beachcats
  • Compatible with Classic model mounting hole spacing for easy upgrades
  • Can be used as a becket block for added versatility
  • Low-friction performance for efficient trimming
  • Durable construction for demanding marine environments
  • Suitable for performance sailing and active use

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