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57mm Carbo Quad Block - Swivel Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very h... More Details
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40mm Carbo Single Ratchet Block with Swivel Becket & Cam Cleat Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing.  Features: Sheave Ø... More Details
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40mm Carbo Single Ratchet Block with Swivel & Becket Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing. 2608, 2609, and 2614 have on/... More Details
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40mm Carbo Single Ratchet Block with Swivel Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing. 2608, 2609, and 2614 have on/off switc... More Details
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25mm Wire Block with Shackle Lightweight, low-friction wire blocks carry wire halyards and high-strength control lines on boats of all sizes. Specifications: Sheave: 25mm / 1in. Weight: 28g / 1oz. Sha... More Details
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22mm Triple Micro Block with Cam Cleat - Fishing Low-friction Micro blocks are compact and lightweight.  Specifications: Sheave: 22mm / 7/8in. Length: 51mm / 2in. Weight: 99g / 3.5oz. Maximum line: 6m... More Details
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22mm Triple Micro Block with Becket - Fishing Low-friction Micro blocks are compact and lightweight.  Specifications: Sheave: 22mm / 7/8in. Length: 64mm / 2.5in. Weight: 64g / 2.25oz. Maximum line: 6m... More Details
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22mm Triple Micro Block with Becket Low-friction Micro blocks are compact and lightweight. They are ideal for sailboards, smaller dinghies, and lightly loaded control lines on boats of all sizes. Spec... More Details
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22mm Triple Micro Block Low-friction Micro blocks are compact and lightweight. They are ideal for sailboards, smaller dinghies, and lightly loaded control lines on boats of all sizes. Specifications: ... More Details
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22mm Fiddle Micro Block with V-Jam & Becket Low-friction Micro blocks are compact and lightweight. They are ideal for sailboards, smaller dinghies, and lightly loaded control lines on boats of all siz... More Details
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22mm Fiddle Micro Block with V-Jam Low-friction Micro blocks are compact and lightweight. They are ideal for sailboards, smaller dinghies, and lightly loaded control lines on boats of all sizes. Speci... More Details
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22mm Double Micro Block with Becket Low-friction Micro blocks are compact and lightweight.  Specifications: Sheave: 22mm / 7/8in. Length: 64mm / 2.5in. Weight: 43g / 1.5oz. Maximum line: 6mm / 1/4in. ... More Details
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40mm Carbo Air Pivoting Lead Block with Aluminum Cam-Matic® Cleat High-strength pivoting lead blocks with cams are used for halyard controls on larger keelboats and as “headknockers” on dinghies and b... More Details
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57mm Carbo Block Flip Flop with Cam Small Boat Flip-Flop blocks pivot around the line axis to keep the line close to the deck. Hinged construction allows for various lead angles. Features: Sheave Ø (m... More Details
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57mm Triple Carbo Block - Swivel, Becket, Cam Cleat Carbo Ratchets allow sailors to hand-hold loaded lines and offer a balance between holding power and controlled easing. Features: Sheave Ø (mm) 57 m... More Details
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57mm Single Carbo Ratchet Cheek Block Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing.  Features: Sheave Ø (mm): 57 mm Sheave Ø (in... More Details
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57mm Carbo Single Ratchet Block with Swivel & Becket Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing.  Features: Sheave Ø (mm): 57 ... More Details
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57mm Carbo Single Ratchet Block with Swivel Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing. Features: On/off switch operates from ... More Details
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16mm Triple Block with Becket The 16 mm is Harken’s smallest block. It is perfect for small synthetic control lines found on high-tech dinghies. The patented bearing system uses stainless steel balls ... More Details
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Harken 16mm Triple Block - MW

Sailboat Blocks
16mm Triple Block The 16 mm is Harken’s smallest block. It is perfect for small synthetic control lines found on high-tech dinghies. The patented bearing system uses stainless steel balls in a captive... More Details
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16mm Double Block with Becket  The 16 mm is Harken’s® smallest block. It is perfect for small synthetic control lines found on high-tech dinghies. The patented bearing system uses stainless steel ball... More Details
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Harken 16mm Double Block - MW

Sailboat Blocks
16mm Double Block The 16 mm is Harken’s® smallest block. It is perfect for small synthetic control lines found on high-tech dinghies. The patented bearing system uses stainless steel balls in a captiv... More Details
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Midrange Double Block Midrange blocks’ robust construction makes them ideal to handle the high loads found on medium and large offshore boats. Sheave runs exclusively on a ball bearing system for fast... More Details
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Midrange Single with Aluminum Sheave Block Midrange blocks’ robust construction makes them ideal to handle the high loads found on medium and large offshore boats. Sheave runs exclusively on a ball be... More Details
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Midrange Single Block Midrange blocks’ robust construction makes them ideal to handle the high loads found on medium and large offshore boats. Sheave runs exclusively on a ball bearing system for fast... More Details
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12mm Bolt-Down Fairlead - Single Harken Bolt-Down Fairleads are used on boats 6–15 m (20–50 ft) as shallow-angle line deflectors. These weight-saving fairleads are built of 6061-T6 Hard Lube-anodized ... More Details
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38mm Double Big Bullet Block with Becket Low-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets... More Details
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38mm Double Big Bullet Block Low-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these block... More Details
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B285M Medium-Frequency CHIRP Transducer with Temperature - Bronze Thru-Hull with High Speed Fairing Block Features: Frequency: Chirp 85 - 135 kHz Power Rating: 1 KW Connector: 10 Pin Fairing Block: Hi... More Details
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Size 2 Single Upright Block Plain Bearing Blocks Barton plain bearing blocks have a precision molded acetal sheave running on a large diameter brass bearing, ensuring free running under the highest of... More Details
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WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov More Details
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Series 5 54mm Crusier Blocks - Fiddle - Reverse Shackle Reverse Shackle Removable shackle that can be set in-line or at 90° to the sheave. This range of high load cruiser blocks are of rugged construc... More Details
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Ratchet Block - 55mm The Barton Ratchet Block is designed to be used on mainsheet systems and spinnaker sheets on dinghies and keelboats and for small yachts up to 30 feet. Combining high-performance ... More Details
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Proudly serving customers across United States & Canada with Marine, RV parts and accessories.

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About Us

LibertyMarineUSA supplies marine and RV parts and accessories from trusted U.S. manufacturers and proven, quality-approved imported manufacturers. We focus on dependable, quality-tested products from reliable sources, so you can maintain, repair, and outfit your boat or RV with confidence.

Our goal is simple: to deliver the best quality marine parts you can count on. We focus on dependable service, fast shipping, and proven products that are either American-made or American-tested and approved for quality and reliability.