• Harken 57mm Carbo Quad Swivel Block 2631 for Sailboat Line Control
1 1

Harken

Harken 57mm Carbo Quad Swivel Block 2631 for Sailboat Line Control

Harken 57mm Carbo Quad Swivel Block 2631 for Sailboat Line Control

88766

$213.95 USD
$213.95 USD
Sale Sold out
Shipping

Low stock: 5 left
  • 30-Day Returns
  • Secure Checkout
  • Free Shipping — Contiguous U.S.

Shipping & Delivery

Free standard shipping is available on all orders shipping within the Contiguous United States, with no minimum order. Alaska and Hawaii are excluded from free shipping. Orders are typically processed within 1–2 business days. See our Shipping Policy for complete terms.

Returns & Refunds

Eligible items may be returned within 30 days of delivery. Items must be new, unused, uninstalled, and in original packaging. An RMA is required.

Installment options at checkout are provided by Shop Pay and its partners and are subject to eligibility. Options depend on your purchase amount and may require a credit check by the financing partner. Terms, rates, and eligibility are determined by the financing partner. For details, see the Shop Pay Installments terms during checkout.

57mm Carbo Quad Block - Swivel

Low-friction Carbo Air blocks are lightweight, strong, reliableand affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working loads for safe, easy trimming.

Features:

  • Sheave (mm) 57 mm
  • Sheave (in) 2 1/4 in
  • Maximum line (mm) 10 mm
  • Maximum line (in) 3/8 in
  • Maximum working load (kg) 1080 kg
  • Maximum working load (lb) 2380 lb

Harken 57mm Carbo Quad Block - Swivel, Part Number 2631

The Harken 57mm Carbo Quad Swivel Block is a lightweight, low-friction sailing block designed for reliable line handling and trimming on sailboats. Its compact Carbo Air construction combines strength with a high maximum working load, making it suitable for sailors who need smooth, controlled adjustment in a space-conscious setup. As a companion to Harken Big Boat blocks, this quad block provides practical performance for a range of onboard trimming applications.

With four sheaves and a swivel configuration, the Harken Carbo Quad Block helps organize and redirect sailing lines while allowing the block to align with changing line angles. The low-friction design supports easier trimming, and the compact format makes it useful for equipment layouts where efficient line control matters. It accommodates line up to 3/8 inch and has a maximum working load of 2,380 pounds.

Key Features:

  • Low-friction Carbo Air design: Supports smooth, easy line trimming for sailing applications.
  • Quad sheave configuration: Provides four sheaves for versatile line routing and control.
  • Swivel block design: Allows the block to orient with the line direction during use.
  • Lightweight and compact construction: Helps provide practical performance where onboard space and equipment weight matter.
  • High working load: Handles a maximum working load of 2,380 pounds for demanding trimming applications.

Product Details:

  • Brand: Harken
  • Part number: 2631
  • Product type: 57mm Carbo Quad Block - Swivel
  • Sheave diameter: 2 1/4 inches
  • Maximum line size: 3/8 inch
  • Maximum working load: 2,380 pounds
  • Sheave quantity: Four

Choose the Harken 57mm Carbo Quad Swivel Block 2631 for compact, reliable, and smooth line control on your sailboat.

SEO Meta Description: Shop the Harken 57mm Carbo Quad Swivel Block 2631 for low-friction sailboat line control, four sheaves, and a 2,380-pound working load.
Truck Freight: No
Oversized: No

View full details