Harken 3.00 Heavy Duty Cruiser Block

SKU: 011.

The timeless styling of the Classic block line enhances your boat’s traditional look. Strong, dependable and exceptionally free-running, these compact blocks are the foundation of the Harken block line. We offer them in multiple configurations for dinghies, scows, beachcats, iceboats, and small offshore racers and cruisers.

Ball bearings, sheave, and sideplates are UV-stabilized.

Corrosion-resistant stainless steel straps reinforce blocks.


  • Sheave Ø (mm): 76 mm
  • Sheave Ø (in): 3 in
  • Length (mm): 133 mm
  • Length (in): 5 1/4 in
  • Weight (g): 227 g
  • Weight (oz): 8 oz
  • Shackle pin Ø (mm): 6 mm
  • Shackle pin Ø (in): 1/4 in
  • Maximum line Ø (mm): 12 mm
  • Maximum line Ø (in): 7/16 in
  • Maximum working load (kg): 340 kg
  • Maximum working load (lb): 750 lb
  • Breaking load (kg): 1361 kg
  • Breaking load (lb): 3000 lb
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