Harken 40mm Carbo Blocks

Harken 40mm Carbo Blocks
Carbo AirBlocks are 60% stronger and 30% lighter than our classic blocks. Use the 40 mm Carbo for jib and mainsheet systems on high-performance dinghies and for loaded control lines on small keelboats.

The nylon-resin sideplates are densely packed with long-glass fibers for a compact block with a high strength-to-weight ratio. Sheaves spin on high-load ball bearings with fitted races for low-friction operation. Ball bearings, sheave and sideplates UV stabilized with black additive for maximum protection.

Use for:


  • Main/jib sheets

  • Mainsheet fine-tune

  • Control lines

  • Vangs

  • Cunninghams

  • Outhauls

  • Harken 40mm Carbo Block
    Regular price: $33.35
    Sale Price : $26.01
    Harken 40mm Carbo Block w/ Becket
    Regular price: $38.85
    Sale Price : $30.30
    Harken 40 mm Cheek Block w/ Becket
    Regular price: $39.15
    Sale Price : $30.54
    Harken 40mm Carbo Cheek Block
    Regular price: $32.10
    Sale Price : $25.04
    Harken 40mm Carbo Block w/ Cam Cleat
    Regular price: $108.80
    Sale Price : $84.86
    Harken 40mm Carbo Block w/ Cam Cleat & Becket
    Regular price: $114.30
    Sale Price : $89.15
    Harken 40mm/29mm Carbo Traveler Block
    Regular price: $43.35
    Sale Price : $33.81
    Harken 40mm Fixed Carbo Block
    Regular price: $27.35
    Sale Price : $21.33
    Harken 40mm Carbo Block w/ Spring & Eyestrap
    Regular price: $36.70
    Sale Price : $28.63
    Harken 40mm 90 Degree Fixed Head Block
    Regular price: $37.25
    Sale Price : $29.06
    Harken 40mm Double Swivel Carbo Block
    Regular price: $75.60
    Sale Price : $58.97
    Harken 40mm Double Swivel Carbo Block w/ Becket
    Regular price: $81.05
    Sale Price : $63.22
    Harken 40mm Triple Swivel Carbo Block
    Regular price: $124.80
    Sale Price : $97.34
    Harken 40mm Triple Swivel Carbo Block w/ Becket
    Regular price: $130.25
    Sale Price : $101.60
    Harken 40mm Fixed Double Carbo Block
    Regular price: $63.05
    Sale Price : $49.18
    Harken 40mm Double Fixed Head Carbo Block w/ Becket
    Regular price: $68.50
    Sale Price : $53.43
    Harken 40mm Triple Swivel Cabro Block w/ Cam Cleat
    Regular price: $192.20
    Sale Price : $149.92
    Harken 40mm Triple Swivel Carbo Block w/ Cam Cleat & Becket
    Regular price: $197.65
    Sale Price : $154.17
    Harken 40mm Quad Swivel Carbo Block
    Regular price: $165.70
    Sale Price : $129.25
    Harken 40mm Carbo Fiddle Block
    Regular price: $45.70
    Sale Price : $35.65
    Harken 40mm Carbo Fiddle Block w/ Becket
    Regular price: $51.15
    Sale Price : $39.90
    Harken 40mm Carbo Fiddle Block w/ Cam Cleat
    Regular price: $121.05
    Sale Price : $94.42
    Harken 40mm Carbo Fiddle Block w/ Cam Cleat & Becket
    Regular price: $126.55
    Sale Price : $98.71
    Harken 40mm Pivoting Lead Block - Cam-Matic Cleat
    Regular price: $76.65
    Sale Price : $59.79
    Harken 40mm Pivoting Lead Block - Carbo-Cam Cleat
    Regular price: $71.65
    Sale Price : $55.89