197
7404
7401
7403
7405
7402
7407
7356
7360
7359
7355
Furling Lead Blocks
Harken recommends equipping jib reefing and asymmetric/code zero furling systems with lead 
blocks for safe furling from the cockpit. Lightweight, UV-stabilized Carbo blocks run exclusively 
on ball bearings for fast trimming under any load. Furling leads are offered 
separately or in complete kits.
MKIV and MKIV Ocean Jib Reefing and Furling Leads 
A 57 mm Carbo ratchet maintains tension on the line so the unit furls smoothly and easily. 
The outboard assembly allows the line to travel outside of the stanchions, keeping the 
sidedecks clear. Inboard block assemblies are available for the bow pulpit, to handle two 
lines, for continuous line furlers, or for cutter-rigged boats with two furlers. Ball and 
socket bases align blocks for smooth leads aft. 
Reflex Asymmetric and Code Zero Furling Leads
Two stanchion leads forward guide line outboard to keep sidedecks clear. A stanchion lead aft 
features a double Harken Cam-Matic for cleating continuous furling line. A Carbo T2 block with 
shockcord attaches aft of the double cam to keep line in place for easy access.
Outboard leads allow furling line to 
travel outboard of the stanchion to 
keep the sidedeck clear.
*Kit includes 3 x 7403 / 1 x 7401 / 1 x 7402 / 1 cleat.     **Kit includes 2 x 7355 / 1 x 7359 / 1 x 7360.
MKIV & MKIV OCEAN JIB REEFING & FURLING LEADS
REFLEX ASYMMETRIC & CODE ZERO FURLING LEADS
Part
No.
Description
Sheave
Ø
Weight
Max line
Ø
Maximum
working load
Use with
in
mm
oz
g
in
mm
lb
kg
 MKIV & MKIV Ocean 
 
 
 
 
 
 
 
 
 
 7401  40 mm Carbo lead block assembly 
 1 9/16 
 40 
 3.7 
 106 
 3/8 
 10 
 485 
 220 
 25 mm (1") stanchions 
 7402  57 mm Carbo ratchet lead block assembly 
 2 1/4 
 57 
 5.4 
 152 
 3/8 
 10 
 500 
 227 
 25 mm (1") stanchions 
 7403  29 mm outboard lead block assembly 
 1 1/8 
 29 
 3 
 85 
 3/8 
 10 
 
 
 25 mm (1") stanchions 
 7404  Lead block kit* 
 
 
 19.2 
 544 
 3/8 
 10 
 
 
 25 mm (1") stanchions 
 7405  40 mm Carbo stanchion mount double lead 
 1 9/16 
 40 
 5.6 
 159 
 3/8 
 10 
 485 
 220 
 25 mm (1") stanchions 
 7407  57 mm Carbo lead block 
 2 1/4 
 57 
 5.2 
 149 
 3/8 
 10 
 500 
 227 
 25 mm (1") stanchions 
 Reflex 
 
 
 
 
 
 
 
 
 
 7355  Outboard fairlead 
 
 
 4.35 
 123 
 3/8 
 10 
 
 
 25 mm (1") stanchions 
 7356  Lead block kit** 
 
 
 26.54 
 751 
 3/8 
 10 
 
 
 25 mm (1") stanchions 
 7359  Outboard fairlead/double cam cleat 
 
 
 9.79 
 276 
 3/8 
 10 
 
 
 25 mm (1") stanchions 
 7360  57 mm T2 lead block/bungee 
 2 1/4 
 57 
 3.7 
 106 
 3/8 
 10 
 500 
 227 
 

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