4 Performa Electric & Hydraulic Electric Components Digital System Switch CLR Mooring Winches Aluminum Stainless Steel Bronze Carbon Fiber Air Winches Pedestals Pedestal Drive Components Handles Service Kits Air Captive Electric & Hydraulic Captive Reel Captive Push Pull Line Tensioners 245 Hydraulics Integral Backstay Adjuster Cylinders Locking Cylinders Double-pull Cylinders Cylinder Blocks & Toggles Boom Vangs Grand Prix Cylinders Valves & Manifolds MVP-1 & MVP-4 Control Panels Compact Control Panels Pumps Rotary Pumps Reservoirs/Pump Handles Accessories 264 Materials & Properties 266 Reference Warranty/Warnings and Instructions Trademarks Maintenance Genoa Lead Car Traveler Mainsheet Boom Vang Outhaul Cunningham Mastbase & Cabin Top Spinnaker Spinnaker Pole Handling Backstay Adjuster Mainsail Reefing Self-Tacking Jibs/Staysail Metric Conversions/Drilling Guide Ball Bearing Replacement Chart Rigging Breaking Loads Loading Formulas 291 Index Catalog Guide BIG BOAT BLOCKS 43 - 68 COMPLEMENTARY HARDWARE 70 - 102 HYDRAULICS 245 - 263 HEADSAIL HANDLING SYSTEMS 170 - 203 MAINSAIL HANDLING SYSTEMS 141 - 169 TRAVELERS & GENOA LEADS 103 - 139 REFERENCE 264 - 290 WINCHES 204 - 244 INDEX 291 - 304 SMALL BOAT BLOCKS 13 - 42 © Harken, Inc. 2026. All rights reserved. No portion of this catalog may be reproduced without the express written permission of Harken, Inc. Printed in U.S.A. Please refer to p.268 for trademark disclaimers and information. 13 Small Boat Blocks Fly Blocks ILCA Kicker/Vang-System Zircon Blocks Carbo Air Blocks T2/T2 Ratchamatic 29 mm 40 mm 57 mm 75 mm HTE Ratchamatic/Power3 Ratchet Ratchet Ratchamatic Fiddle Small Boat Flip-Flops/Dinghy Vang Protexit Exit Blocks 16 mm Micro Classic Blocks Bullet/Dinghy/Exit 2.25" Hexa-Cat Bases Two-Speed Mainsheet Systems Midrange/Midrange Hexaratchet Wire 43 Big Boat Blocks Element Blocks 45 mm 60 mm 80 mm Black Magic Air Blocks 45 mm 57 mm 75 mm 100 mm 125 mm/150 mm Air Runner Blocks/Crossover Teardrops/Footblocks FlatWinder Powered Block Stainless Cruising ESP Megayacht Blocks Mastbase Halyard Leads Over-The-Top/Flip Flop Fixed Tulip Blocks V Blocks High-Load Snatch/1 Ton Twing Block 70 Complementary Hardware Cam Cleats/Accessories Cam Bases Stand-Up Bases Accessories Self-Contained Sheaves Big Boat Sheaves V Sheaves High-Load/Narrow/Steering Sheaves 40 & 50 mm Deck Organizers Big Boat Deck Organizers Spinnaker Pole Cars Soft Attachments Stainless Steel Shackles Eyestraps Folding Padeyes/Padeyes Aluminum Padeyes Duplex Cast Padeyes Gizmos Fixed & Removable Padeyes SMC Rings/Carabiners Lead Rings GP Jib Leads/ Bolt-Down Fairleads Halyard Tensioners/Tiller Extension 103 Travelers & Genoa Leads Dinghy Pinstop Jib Leads CB Captive Ball Bearing Travelers & Genoa Lead Cars 13 mm Micro 22 mm Small Boat 27 mm Midrange 32 mm Big Boat Windward Sheeting 42 mm Mini-Maxi 64 mm Maxi CRX Roller Curved Track T-Track Genoa Lead Cars Access Rail System 141 Mainsail Handling Systems Battcar Systems T-Track Switch Battcar Systems Trysail Switch Furling Mainsail/Outhaul Systems/ Lazy Jacks Vang-Master 170 Headsail Handling Systems Carbo Racing Foil Small Boat Furling Components Reflex Furling MKIV Ocean MKIV MKIV Underdeck MKIV Hydraulic Furling Accessories 192 Winches SnubbAir Radial Aluminum Chrome White Bronze Powered Electric & Hydraulic Motors Unipower Rewind
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