Harken 2135 57mm Carbo Ratchet Block with Swivel

The Harken 2135 57mm Carbo Ratchet Block is a single ratchet block with swivel designed for sailors who need to hand-hold loaded lines with confidence. Delivering a precise balance between holding power and controlled easing, this block is a trusted choice for mainsheets and trimlines on dinghies and small keelboats alike.

The ratchet mechanism features a machined aluminum sheave with eight facets to grip the line securely, providing a 10:1 holding power ratio ideal for medium to light air conditions. The ambidextrous on/off switch lets sailors engage or disengage the ratchet from either side of the block instantly. A swivel mount keeps the line running fair and prevents twisting across a wide range of lead angles.

Key Features:

• Carbo ratchet design for hand-holding loaded lines with ease
• On/off switch operable from both sides
• Swivel attachment keeps line fair and prevents twisting
• Machined aluminum sheave with 8 facets for secure line grip
• Standard grip optimized for medium/light air — 10:1 holding power
• Lightweight and compact construction
• Replaces discontinued Harken block H019 / HAR019

Specifications:

• Sheave Diameter: 57 mm (2-1/4 in)
• Maximum Line Diameter: 10 mm (3/8 in)
• Maximum Working Load: 227 kg (500 lb)
• Breaking Load: 907 kg (2,000 lb)
• Block Length: 103 mm (4-1/16 in)
• Shackle Pin Diameter: 5 mm (3/16 in)
• Weight: 85 g (3 oz)
• Holding Power: 10:1

The Harken 2135 is backed by Harken's 5-year warranty against defects in material and workmanship when properly installed and maintained. UPC: 097653144267.