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Unit 4 MKIV Furling System

Part No. 7414.10

Wire Ø (1 x 19 SS) (mm) 16 mm

Wire Ø (1 x 19 SS) (in) 9/16 in

Rod Ø (mm) 14.3 mm

Rod Ø (dash) -48

Clevis pin Ø (mm) 28.57 mm

Clevis pin Ø (in) 7/8 in

MKIV furling systems are strong, lightweight and aerodynamic, with the performance and features Harken® is known for. Longevity, ease of use, and simplicity of installation are crucial components of the design.
Wire Ø (1 x 19 SS) (mm)16 mm
Wire Ø (1 x 19 SS) (in)9/16 in
Rod Ø (mm)14.3 mm
Rod Ø (dash)-48
Clevis pin Ø (mm)28.57 mm
Clevis pin Ø (in)7/8 in
Standard headstay length (m)22.88 m
Standard headstay length (ft in)75' 1" ft in
Maximum headstay length (m)27.15 m
Maximum headstay length (ft in)89' 1" ft in
A (mm)227 mm
A (in)8 15/16 in
B (in)** in
C (in)** in
D (mm)280 mm
D (in)11 1/16 in
E (mm)130 mm
E (in)5 1/8 in
F (mm)1405 mm
F (in)55 5/16 in
F maximum (mm)1405 mm
F maximum (in)55 5/16 in
G maximum (in)** in
G minimum (in)** in
H (mm)509 mm
H (in)20 in
H maximum (mm)509 mm
H maximum (in)20 in
I (mm)220 mm
I (in)8 5/8 in
I maximum (mm)220 mm
I maximum (in)8 5/8 in
J (mm)44 mm
J (in)1 3/4 in
K (mm)47 mm
K (in)1 27/32 in
Extrusion length (m)2.13 m
Extrusion length (ft in)7' ft in
Luff tape size (mm)5 mm
Luff tape size (in)#6 (6/32) in
ID BOM Qty Price
H-38212 - more info $243.95
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Line Guard - MKIV Unit 4

Fasteners not included.

H-38819 - more info $31.05
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(1/2) Cover with Insert - Furling MKIV Unit 4

Fasteners not included.

H-38820 - more info $31.05
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(1/2) Flange - MKIV Unit 4

Fasteners not included.

H-45482 - more info $224.70
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Feeder - Furling MKIV Unit 4

Stainless steel feeder allows fast singlehanded hoist and sail changes.

H-45788 - more info $2,461.00
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Halyard Swivel - Furling MKIV Unit 4

Lightweight aluminum halyard swivel saves weight aloft to reduce pitching and heeling.

HFG672 - more info $4.30
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Fastener Set - 2, 3, 4 MKIV Trim Cap

HFG946 - more info $92.00
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Connector Bushing Set - MKIV Unit 4

HFG947 - more info $25.70
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Wedge Set - MKIV Unit 4

HFG948 - more info $66.35
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Fastener Connector Set - MKIV Unit 4

HFG949 - more info

Trim Cap Set - MKIV Unit 4

H-45498B - more info

Torque Tube Clamp - MKIV Unit 4

Fasteners not included.

7414.10BASE - more info

Unit 4 MKIV Lower Unit

Aluminum line guard and torque tube are deep-saturation hardcoat-anodized, UV-stabilized for durability. Large inner spool diameter increases mechanical advantage for powerful reefing and furling.

7414.32 - more info

Unit 4 MKIV Bottom Connector with Bushings

Triple-interlock foil joints withstand years of torque loading: foil connectors geometric shape interlocks with foil; secures with syringe-injected adhesive; screws provide final lock.

7414.33 - more info

Unit 4 MKIV Foil - 0.61 m

Aerodynamic, clear-anodized aluminum Air foils handle extreme reefing loads.