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Harken ESP Furling

Harken ESP Furling

Harken ESP Furling has been specifically designed and manufactured for the daysailer and coastal cruiser looking for value for money with Harken accredited quality. The DIY friendly construction combines a competitive price with the stylish...

Harken ESP Furling has been specifically designed and manufactured for the daysailer and coastal cruiser looking for value for money with Harken accredited quality. The DIY friendly construction combines a competitive price with the stylish design of the Mark IV

Harken ESP Plus Factors:

  • 7 year Manufacturer Extended warranty
  • Good Value
  • Easy to assemble
  • Simple to install
  • Detailed Installation and User Manual
  • Simple, effective Design
  • Choice of top foils in five pre-cut lengths—no hacksaw required.
  • Adjustable bottom foil for cutting to exact length required
  • Foils slip over most existing headstays without cutting reducing set-up time
  • Reef safely from the cockpit when conditions deteriorate and unfurl instead of motoring during light weather and patchy breeze

Harken ESP Build Quality

The Spool inside the drum is manufactured from Hard Lube anodized aluminium.

The Cover, flange, and guard are moulded from glass-reinforced polymers delivering maximum strength : weight ratio.

Foils are clear-coat anodized for durability.

The feeder is produced form hard wearing marine grade stainless steel.

Selecting Short or Long Leg Option

Long leg - Raises the drum to clear the anchor, reduce sail chafe, and increase visibility for smooth sailing.

Choose the long leg kit when using a standard turnbuckle with swage or swageless terminals.

A single stainless steel clevis pin provides access to the turnbuckle for adjustment.

Short Leg - attaches directly to the marine eye at the lower end of the stay. Although most turnbuckles will not fit, it does allow a sail with a longer luff.

Selecting your ESP Unit

Use your existing headstay length and clevis pin diameter combined with the approximate boat length guide to determine which unit is suitable. Take care to note whether you need an extra foil.

Every kit contains all components required to assemble the unit and comprehensive instructions to make everything as easy as possible.

Extras such as new stanchion blocks, furling lines, new headstay or rod adaptors are not included in the kit but are readily available from the Jimmy Green Rigging Sales Team.

Harken ESP Jib Reefing and Furling Selection Process

Choose Furler Type

The table below is only a guideline based on sailing style and approximate boat size.

Harken ESP Selection Guide

Determine Unit Size

The Unit Size should be based on the headstay and clevis pin diameter.

Choose between unit sizes when diameters are shared by considering stay length and typical boat size recommendations.
Harken ESP size

Determine whether Additional Foils are Needed

Use the I and J measurements to determine the length of the headstay.

If the existing headstay is longer than the Harken recommended standard length for that unit, you will require additional foils and connectors.
Harken ESP I and J


Determine Leg Kit

Use short leg kits for maximum luff length, long leg kits to accommodate a turnbuckle or to make clearance on deck.
Harken ESP Leg Kits

Choose Lead Block Kit and Accessories

Harken recommend a ratchet lead block kit.

More Furling Accessories include equipment for halyard management and hardware for improved sail changes.

Prepare Sail and Forestay

Your Genoa will require a luff tape.

Match the sail length to the stay length minus the height of the halyard swivel and lower unit.

ESP furlers with long or medium leg kits install over the existing turnbuckle.

The turnbuckle is accessible for adjustment by raising the drum.

The forestay may need to be shortened to accommodate the Harken toggle but it may be only the lower threaded turnbuckle that needs changing.

The Jimmy Green Rigging Team are happy to help you determine the appriate Harken unit tailored to your yacht and your intended sailing.


Don’t get becalmed

Set sail with the benefit of Team Jimmy Green expertise. We are confident that you will look forward to our emails.