40mm Fiddle Block — Swivel, Becket

Harken 40mm Fiddle Block — Swivel, Becket

The Harken 40mm Carbo Air Fiddle Block with Swivel and Becket (Part No. 2656F) is widely recognized as the tournament standard for teaser deployment on sport fishing boats. Its low-friction performance significantly improves deployment and retraction responsiveness, allowing anglers to react quickly and efficiently during competition. A single swivel is mounted at the head end above the larger sheave, providing smooth rotation and reducing line twist under load.

Beyond its sportfishing applications, this fiddle block is an excellent choice for building compact 3:1 or 4:1 tackle systems where minimal weight and maximum performance are essential. The Carbo Air construction combines lightweight materials with outstanding strength, resulting in a block that weighs just 54 g yet delivers a maximum working load of 220 kg (485 lb) and a breaking load of 735 kg (1620 lb).

At 131mm in length and featuring a 40mm sheave diameter, this block accepts line up to 10mm (3/8 in) and mounts via a 4mm (5/32 in) shackle pin. Its compact dimensions make it easy to integrate into a wide range of rigging configurations without adding unnecessary bulk or windage.

Key Features

• Tournament-standard fiddle block for teaser deployment on sport fishing vessels
• Low-friction Carbo Air design for fast, responsive deployment and retraction
• Single swivel at head end above the larger sheave for reduced line twist
• Ideal for building 3:1 or 4:1 compact tackle systems
• 40mm sheave diameter accepts lines up to 10mm (3/8 in)
• Maximum working load: 220 kg (485 lb); breaking load: 735 kg (1620 lb)
• Lightweight construction at only 54 g (1.9 oz)
• Overall length: 131mm (5 1/8 in)
• Becket included for attaching additional tackle or line termination
• Part Number: 2656F