Defender Home Page
Phone: 800-628-8225 Fax: 800-654-1616 Int'l.: 860-701-3400 Email: Contact Us
Follow us on Facebook
Shipping Info
Defender Home Page
Your Cart
null View Cart View Shopping Cart
null Check My Order(s)
null Track My Package(s)
Conversion Chart
Shopping Areas
Boats & Motors
null Defender Seal null
promo A
promo B
promo C
promo D
Harken 57 mm Carbo Air Block Ratchet Block

Harken 57 mm Carbo Air Block Ratchet Block

  • Single Ratchet Block with Swivel and 150 Cam-Matic
  • Maximum Working Load: 300 lbs
  • Maximum Line Size: 3/8"
  • Item #: 
    Model #: 


    Shipping Weight: 
    0.55 Lbs.
    List Price: 
    Our Price:
    Status:    null In Stock

    Quantity : 
    Made in the USA


     57mm Carbo Ratchet Block w/Cam Cleat


    • Provides precise on/off control with
    • Accessible and easy to operate on/off switches on both sides of the block
    • Carbo side plates provide lightweight line control
    • Cam assembly adjusts and locks in a wide range of positions for crew accessibility
    • On/Off switch operates from both sides
    • Sheaves offer balance between holding power and controlled easing


    • Maximum Working Load: 300 lb (136 kg)
    • Breaking load: 750 lb (340 kg)
    • Weight: 8.7oz (247g)
    • Sheave diameter: 2-1/4" (57 mm)
    • Maximum line size: 3/8" (10 mm)

    Note:  DO NOT use Harken Equipment for Human suspension.



    Have A Suggestion?

    Help us make our site better for everyone! Let us know you've found something wrong or frustrating on this page and we will improve it. Please mark each that apply.

    Product has been improperly categorized
    Page loads too slowly
    Product information is incorrect
    Page has errors or bugs
    Site is frustrating or difficult to use
    Product image is missing or wrong
    Cannot find my size
    Spelling errors on page
    Not enough product information

    Comments or Examples:
    Examples: Missing information such as dimensions and model number, typos, inaccuracies, etc...

    Please include your e-mail address below if you would like us to respond to your comments or questions.             

    Join Our Email List And Receive our Monthly Promotions
    Defender Email Specials
    Click Here For Our Privacy Policy