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Harken 57 mm Carbo Fiddle Block H2621

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HAR 2621
Ships in 3-5 Days
Current Stock:
Fiddle Block
57 mm

Memorial Day Sale: 15% off orders over $200+ (applies automatically in shopping cart). Offer ends 5/27/2024.

Exceptions apply. Excludes Boats, Kayaks, and items not purchasble online.
See sale page for details, terms, and conditions.

Frequently Bought Together:

Harken 57 mm Carbo Fiddle Block
Inc. Tax
Ex. Tax


Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming.


This fitting is commonly used and/or recommended for the following one design sailboat applications:

  • Flying Scot Boom Traveler Block (x1)
  • J/22 Mainsheet Boom Block (x1)
  • J/24 Mainsheet Boom Block (x2)
  • J/70 Traveler Block (Lower) (x1)
  • J/80 Traveler Block (Lower) (x1)
  • J105 Upper Vang Block (x2)
  • Star Shroud (x1)
  • Viper 640 Boom Vang (Aft) (x1)

Product Reviews

Shipping & Returns

Delivery Info: Enjoy Free Standard Shipping on most orders* to the Continental United States over $99. Our Standard Shipping method utilizes USPS, UPS, and FedEx to send packages near and far. Oversize/Freight shipping (where applicable), Expedited Shipping (where available), and rates to other destinations will be calculated at checkout.

See our Shipping Page for more information (and exceptions).

Returns Info: Your 100% satisfaction is our goal - we want you to love your sailing gear, but if something doesn't work out, we accept returns on most new, unused items*. Returns can be made within 366 days (1 year + 1 day) of your original order date. Exceptions include (and are not limited to) cut line, Rig Shop products, special order items, numbered sailors, and items used or worn sailing.

See our Returns Page for more information.

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