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HARKEN Carbo Furling Lead Block Assemblies

These stanchion lead blocks have free-rolling ball bearings to lead line aft for safe furling from the cockpit. Use the 7401 40mm block on the bow pulpit as an inboard lead. The 7402 features a ratchet to control spooling when unfurling. The 7401 and 7402 have ball and socket bases to align blocks for smooth leads aft. The 7403 has a 29mm sheave and allows the furling line to travel outboard of the stanchion to keep the side deck clear. Mounts to stanchion with a four-screw clamp.

  • Material: UV-stabilized glass-fiber, nylon resin side plates
  • Maximum Line Length: 3/8" (10mm)
Customer Reviews
Product Models
Description WM Model # MFG Part # Availability Price Quantity  
40mm Carbo Lead Block Assembly, Fits 1" (25mm) Stanchions, 485lb. SWL, 3.7oz. 8712564 7401
In stock online.

$39.60

57mm Carbo Ratchet Lead Block Assembly, Fits 7/8", 1" (22, 25mm) Stanchions, 500lb. SWL, 5.4oz. 8712572 7402
In stock online.

$73.60

29mm Outboard Lead Block Assembly, 3.0oz. 8712580 7403
In stock online.

$37.60

Lead Block Kit (includes all three blocks) 8712598 7404
In stock online.

$241.60

40mm Carbo Double Lead Block Assembly, Fits 1" (25mm) Stanchions, 485lb. SWL, 5.6 oz. 14135875 7405
In stock online.

$62.40

Product Description

These stanchion lead blocks have free-rolling ball bearings to lead line aft for safe furling from the cockpit. Use the 7401 40mm block on the bow pulpit as an inboard lead. The 7402 features a ratchet to control spooling when unfurling. The 7401 and 7402 have ball and socket bases to align blocks for smooth leads aft. The 7403 has a 29mm sheave and allows the furling line to travel outboard of the stanchion to keep the side deck clear. Mounts to stanchion with a four-screw clamp.

  • Material: UV-stabilized glass-fiber, nylon resin side plates
  • Maximum Line Length: 3/8" (10mm)

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Harken 57mm Carbo Ratchet Lead Block Assembly, Fits 7/8", 1" (22, 25mm) Stanchions, 500lb. Swl, 5.4oz.
 
4.5

(based on 2 reviews)

Ratings Distribution

  • 5 Stars

     

    (1)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (0)

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    (0)

  • 1 Stars

     

    (0)

Reviewed by 2 customers

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(1 of 3 customers found this review helpful)

 
5.0

The perfect furling block

By Charis, Catalina 30

from Seattle

About Me Casual/ Recreational

Verified Buyer

Pros

  • Attractive Design
  • Easy To Install
  • Easy To Use
  • Quality Construction

Cons

    Best Uses

    • Sailing

    Comments about Harken 57mm Carbo Ratchet Lead Block Assembly, Fits 7/8", 1" (22, 25mm) Stanchions, 500lb. Swl, 5.4oz.:

    Installation was a snap and the block works perfectly.

    (2 of 3 customers found this review helpful)

     
    4.0

    Great for intended purpose

    By sid

    from newport, ri

    About Me Advanced

    Pros

    • Low friction
    • Ratchet block

    Cons

    • Lack of strength

    Best Uses

    • Furling - only
    • Sailing

    Comments about Harken 40mm Carbo Lead Block Assembly, Fits 1" (25mm) Stanchions, 485lb. Swl, 3.7oz.:

    This is an excellent set of furling blocks. The ratchet block works great, and with a bow-and-arrow technique you can furl easily, even under heavy wind conditions, and you can easily control how much sail you let out... without wrapping the line on a winch. And the fairlead blocks run free with little friction.

    That said, the ratchet block is an "attractice nuisance", as they say in legal circles. We needed a turning block to winch my buddy to the top of the mast, and the block, right at the edge of the cockpit, looked just right for the job. Unfortunately, the block is not rated for much force, and it snapped.

    No one got hurt, and I suppose it is a good thing this block is not stronger. If you were to do the same thing to free a jammed furling line, the block would snap rather than the furler ... But lack of strength is why I downgraded it one star. Incidentally, it worked well enough that I am buying a replacement.

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