Lazy Jack Systems

Prices from $282.99 - To $386.99


In stock online.
Model # 336479 | Mfg # 253 | UPC # 97653009801

These kits contain everything for installing a simple, variable system. 

Keep your mainsail under control and on the boom as it’s lowered. Works exceptionally well with fully-battened mains, but can also be used with conventional sails. Harken Lazy Jacks are designed to contain and restrain the mainsail while reefing and furling. Can be quickly detached from the boom to permit the use of a sailcover with slots. Everything you need to install a simple, adjustable system is included in the kit: pre-swaged wires, blocks, eyestraps, line, a cleat, fasteners and instructions (including how to alter your sail cover for use with lazy jacks).

Key Features

  • Kits contain everything for installing a simple, variable system
  • Works with fully-battened mains and conventional sails 
  • Includes pre-swaged wires, blocks, eyestraps, line, cleat, fasteners and instructions
  • Lazy jacks make mainsail flaking and dousing easy 
  • Keeps the mainsail on the boom as it’s lowered


  • Small Boat Boom Length: 7' to 13' (2.13m–3.96m); mainsail luff length: 21' to 32' (6.4m–9.75m)
  • Medium Boat Boom Length: 10.6' to 16' (3.2m–4.87m); mainsail luff length: 32' to 42' (9.75m–12.8m)
  • Large Boat Boom Length: 12' to 16'. (3.7m–4.9m); mainsail luff length: 35'7" to 48' (10.88m–14.63m)



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