Blocks
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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, 3.00 Midrange Hexaratchet Block - Stbd, 1549
Description: Cheek*Sheave dia. (in): 3Sheave dia. (mm): 76Length (in): 4 3/8Length (mm): 111Weight (..
$234.95
Harken, 3.00 Midrange Hexaratchet w-Becket - Stbd, 1550
Description: SingleSheave dia. (in): 3Length (in): 6 1/8Length (mm): 156Weight (oz): 14Weight (g): 3..
$246.95
Harken, 3.00 Midrange Triple Block, 1546
Description: Double/becketSheave dia. (in): 3Sheave dia. (mm): 76Length (in): 8 1/2Length (mm): 216W..
$440.95
Harken, 3.00 Midrange Triple w-Hex Cam Cleat and Becket, 1556
Description: Triple/ratchet/camSheave dia. (in): 3Sheave dia. (mm): 76Length (in): 7 3/4Length (mm):..
$723.95
Harken, 3.00 Midrange Triple w-Hexaratchet and Cam Cleat, 1555
Description: Single/becketSheave dia. (in): 3Sheave dia. (mm): 76Length (in): 7 1/8Length (mm): 184W..
$712.95
Harken, 3.00 Single Block, 005
Description: Double/becketSheave dia. (in): 2 1/4Sheave dia. (mm): 57Length (in): 5 1/2Length (mm): ..
$91.45
Harken, 3.00 Single Midrange Block w-Aluminum Sheave, 1542
Description: Single/becketSheave dia. (in): 3Sheave dia. (mm): 76Length (in): 7 1/8Length (mm): 184W..
$187.95
Harken, 3.00 Single Midrange Block, 1540
Center pin dia. (in): 5/16Center pin dia. (mm): 8.10Sheave dia. (in): 2 1/2Sheave dia. (mm): 64Width..
$140.95
Harken, 40mm 90 degree Fixed Head Carbo Block, 2659
Description: Fiddle/423 Carbo-Cam/becketSheave dia. (in): 1 9/16Sheave dia. (mm): 40Length (in): 5 1..
$41.95
Harken, 40mm Carbo Block w-Cam Cleat and Becket, 2646
Shackle pin dia. (mm): 4Max. line dia. (in): 1/4Max. line dia. (mm): 6Description: Single/swivel/423..
$128.95