Block, 75 mm ESP Teardrop Mastcollar
Mouse Over to Zoom
Click to Enlarge

HARKENBlock, 75 mm ESP Teardrop Mastcollar


Fulfilled from vendor
Model # 6579080 | Mfg # 6056UPC # 97653098058


Block, 75 mm ESP Teardrop Mastcollar

Name Value
Ball Bearings Torlon
Becket No Becket
Diameter 3/4 Inch or 19 mm
Direction Any
Integral Cleat No Integral Cleat
Length 4 5/8 Inches
Mount Type Fixed Lashing Eye
Ratchet Non Ratcheting
Safe Working Load 3000 Pounds
Sheave Diameter 75 mm
Type Single
Weight 7.8 Ounces

Product Overview

Harken 75mm ESP Teardrop block for direct attachment to padeyes, mast collar posts.

Designed to handle the high loads generated by modern racing and cruising boats, ESP blocks feature sleeve bearings to ensure smooth, hitch-free performance under high load and heavy winds. Simple design and construction for handling high static loads on cruising boats. Ideal for halyards or limited purchase systems on cruising boats. Aluminum or polished stainless steel.

Key Features 

  • Carbon-black Torlon ball bearings
  • Long-glass engineered plastic Sheave
  • Contained-axle sleeve 
  • Sheave Diameter: 3" (75 mm) 
  • Max. Line Diameter: 3/4" (19 mm)  
  • Max. Working Load (MWL): 3000 lb. (1361 kg)  
  • Breaking Load: 6000 lb. (2721 kg)   
  • Weight: 7.8 oz. (221 g) 
  • Length: 4 5/8" (117 mm)


The West Advisor articles have answered boaters' questions and provided solutions to boating problems for more than 20 years. West Marine has compiled one of the Web's most comprehensive collections of technical boating information articles.

Related West Advisor Articles


Product Q & A