Name: Harken 2603 57mm Double Carbo Airblock With Becket
Brand: Pacific Sailboat Supply
SKU: 102210
Price: 122.95 USD
Availability: InStock

HARKEN 2603

Double Carbo AirBlock® with Becket - 57mm

Low-friction Carbo AirBlocks® are lightweight, strong, reliable, and affordable.

Carbo AirBlocks® are 60% stronger and 30% lighter than Harken's Classic blocks. The Nylon-resin side plates are densely packed with long-glass fibers for a compact block with a high strength-to-weight ratio. Ball bearings, sheave and side plates are UV-stabilized with carbon-black additive for maximum protection.

Blocks feature Cam-Lock or U-Lock locking systems to lock the shackle in front or side positions, or swivel to keep line from twisting. The high-load 57mm Carbo has a broad working range. Use for main and jib sheets on centerboard and keelboats like Lightnings, Dragons, Solings, J/24's, and for mainsheet systems on catamarans.

Like all AirBlocks®, the three-way head swivels/locks in front/side positions. Blocks are easily disassembled with a single Allen® wrench.

Use for:

Main/jib sheets
Mainsheet fine-tune
Control lines
Vangs
Cunninghams
Outhauls

Specifications:

Sheave Diameter - 57mm (2-1/4")
Max Line Diameter - 7/16" (10mm)

Mfg No.	Description	Length	Shackle Pin Diameter	Max Working Load	Breaking Load	Weight w/ Shackle
2603	Double / swivel / becket	5-5/8" (142mm)	--- 6mm	1,584 Lbs (720kg)	3,300 Lbs (1,500kg)	6.6 oz. (187g)

At Pacific Sailboat Supply, we’re passionate about what we do, and our primary goal is elevating your sailing and boating experience. We cater specifically to racers and enthusiasts of high-performance sailing, offering a meticulously curated selection from over 300 premier marine brands. Our website features less than 5% of our available products, ensuring only the finest sailboat rigging, hardware, electronics, and more make the cut.

But our expertise doesn’t stop with sailboats. We also provide top-quality supplies for powerboats. If you don’t find exactly what you’re looking for, our team is ready to assist you. Reach out via email, chat, phone, or directly through our website messaging service. At Pacific Sailboat Supply, we’re here to help you navigate your sailing and boating needs with excellence.