Carbo Triple Swivel Block
Harken Harken
  • Carbo Triple Swivel Block

Harken 75mm Carbo Triple Swivel Block with Cam and Becket

Harken's Triple Carbo AirBlock 2669 features 2-15/16 inch diameter sheaves, a shackle that swivels to prevent line twist, a becket for line attachment, and a cam to secure line trim. Carbo AirBlocks are 60 percent stronger and 30 percent lighter than Harken Classic blocks.

The 75 mm Carbo has a safe working load of 1200 lbs. It releases easily under load and is perfect for mainsheet systems on sport boats like the Melges 24, J/105 and Henderson 30.

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Tech Spec Product Info User Generated Content


  • AirBlock design with high-tech, long-glass fibers and nylon material for high strength-to-weight ratio
  • Eliminates heavy stainless sideplates
  • Curved bearing race fit ball for more ball-to-race contact. Disperses load for higher strength, smaller block




2669 Block

Sheave diameter  2-15/16 inch 
Length  7 inch 
Weight w/ shackle  28.4 oz 
Shackle pin diameter  5/16 inch 
Max. line diameter  1/2 inch 
Safe Working Load  1800 lbs 
Breaking Strength  4500 lbs 
BRAND: Harken
Type: Blocks and Sheaves
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