Blocks

Harken blocks have become widely accepted as the industry standard for ball bearing blocks.  We, at Discount Marine Source, are you complete source for all Harken Blocks. From the smallest control line block on a dinghy, to large Big Boat Blocks.

Ball Bearing Blocks

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Harken, 16mm Pivoting Cheek Air Block, 432

Harken, 16mm Pivoting Cheek Air Block, 432

Harken, Colored Cam Caps (specify color), 431..

$20.95

Harken, 16mm Sheave, 415

Harken, 16mm Sheave, 415

Description: Double Cam-Matic****..

$12.95

Harken, 16mm Swivel Air Block, 417
Harken, 2.00 Single Wire Block, 308
Harken, 2.00 Wire Sheave, 311
Harken, 2.25 Cheek Block with Fasteners, 013

Harken, 2.25 Cheek Block with Fasteners, 013

Description: Heavy duty single/becketSheave dia. (in): 3Sheave dia. (mm): 76Length (in): 6 1/4Length..

$59.35

Harken, 2.25 Deck Sheave, 727

Harken, 2.25 Deck Sheave, 727

Breaking load/sheave (lb): 9900Breaking load/sheave (kg): 4491..

$158.95

Harken, 2.25 Double Block, 003

Harken, 2.25 Double Block, 003

Description: Single/becketSheave dia. (in): 2 1/4Sheave dia. (mm): 57Length (in): 5Length (mm): 127W..

$132.05

Harken, 2.25 Double w-Becket, 004

Harken, 2.25 Double w-Becket, 004

Description: DoubleSheave dia. (in): 2 1/4Sheave dia. (mm): 57Length (in): 4 1/2Length (mm): 114Weig..

$148.95

Harken, 2.25 Hexaratchet Block - Starboard, 019

Harken, 2.25 Hexaratchet Block - Starboard, 019

Description: Cheek (port)+Sheave dia. (in): 3Sheave dia. (mm): 76Length (in): 4Length (mm): 102Weigh..

$105.10

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