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HARKEN 57mm Carbo Ratchet Blocks

Control loaded lines with ease

Lightweight Carbo Ratchets are available in 40mm, 57mm, and 75mm sizes.  The 57mm size has many configurations to fit jibsheets, spinnakers, and mainsheet systems on boats ranging from dinghies to large sportboats. All the Carbo Ratchets feature a recessed On-Off switch that is easily operated from either side. The Cheek Block is also switch-controlled.

 

  • Sheave: Hardkote anodized eight-sided aluminum
  • Sheave Size: 2 1/4" (57mm)
  • Ball Bearings: Engineered plastic in fitted ball races
  • Line Diameter: 3/8"
  • Cheek Material/Finish: Long-glass reinforced engineered nylon
  • Shackle/Strap Type: Stainless swivel shackle
Customer Reviews
Product Models
Description WM Model # MFG Part # Availability Price Quantity  
57mm Carbo Ratchet Block, Ratchet, 500lb. SWL, 3.0oz. 6840557 2135
In stock online.

$64.15

57mm Carbo Ratchet Block, Ratchet with Becket, 500lb. SWL, 3.3oz. 6840565 2136
Delivery within 2 - 3 weeks.

$69.61

57mm Carbo Ratchet Block, Ratchet with Cam, 300lb. SWL, 8.7oz. 6840581 2138
In stock online.

$144.94

57mm Carbo Ratchet Block, Ratchet with Cam & Becket, 600lb. SWL, 9.0oz. 6840599 2139
In stock online.

$149.69

57mm Carbo Ratchet Block, Triple with Cam & Becket, 1,800lb. SWL, 14.5oz. 6840615 2141
In stock online.

$215.86

57 mm Carbo Fiddle Block with Cam and Becket 793lb. MWL, 10.7 oz. 11871126 2676
In stock online.

$159.37

2137 Ratchet Cheek, 500lb SWL, 2.5oz 6840573 99W 2137
Delivery within 2 - 3 weeks.

$69.17

Product Description

Control loaded lines with ease

Lightweight Carbo Ratchets are available in 40mm, 57mm, and 75mm sizes.  The 57mm size has many configurations to fit jibsheets, spinnakers, and mainsheet systems on boats ranging from dinghies to large sportboats. All the Carbo Ratchets feature a recessed On-Off switch that is easily operated from either side. The Cheek Block is also switch-controlled.

 

  • Sheave: Hardkote anodized eight-sided aluminum
  • Sheave Size: 2 1/4" (57mm)
  • Ball Bearings: Engineered plastic in fitted ball races
  • Line Diameter: 3/8"
  • Cheek Material/Finish: Long-glass reinforced engineered nylon
  • Shackle/Strap Type: Stainless swivel shackle

Specs

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