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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 sailing adventure.

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Hub Assembly

Note: Click on your preferred part no. or scroll down to purchase. If it's a Special Order item, click on the part number and request it through the Contact Us form. A customer care agent will follow up shortly.

Exploded View Image Ref. Part N° Description Quantity
Hub Assembly - HFG990 Hub Assembly
Special Order 		1
1 HFS1337 ↳ Clamp Screw (M8 x 16 mm custom dogpoint SS) 2
2 H-83150 ↳ Cover with threaded insert
Special Order 		2
3 H-35600C ↳ Flange half with threaded insert 2
4 HFS980 ↳ Screws for flange and cover (M4 x 10mm FH SHCS) 4
5 H-35199E.GREY ↳ Guard half
Special Order 		2
6 HFS1052 ↳ Guard Screw (M6 x 40mm SHCS) 2
7 2110 ↳ Shackle 1
8 5356 ↳ Label for guard half
Special Order 		2
9 5359 ↳ Label for tack
Special Order 		1
10 H-36636A ↳ IGUS Crosspin Bushings for hub
Special Order 		1
11 7511.10BASE ↳ Hub
Special Order 		1
12 MP-118 ↳ Delrin Ball Bearings for hub
Special Order 		78
13 H-335144A ↳ Ball Plugs for hub
Special Order 		3



Rod Adapter Stud Assembly

Note: Click on your preferred part no. or scroll down to purchase. If it's a Special Order item, click on the part number and request it through the Contact Us form. A customer care agent will follow up shortly.

Exploded View Image Ref. Part N° Description Quantity
Rod Adapter Stud Assembly - 7422-8 Rod Adapter Stud w/Nosepiece (-8) 1
1 H-41536 ↳ Stud (Main Body)
Special Order 		1
2 H-41534 ↳ Nosepiece (-8)
Special Order 		1
3 HFS1341 ↳ Cotter Pin (3/32" x 1" 18-8)
Special Order 		2
- 7423-10 Rod Adapter Stud w/Nosepiece (-10) 1
1 H-41536 ↳ Stud (Main Body)
Special Order 		1
2 H-41535 ↳ Nosepiece (-10)
Special Order 		1
3 HFS1341 ↳ Cotter Pin (3/32" x 1" 18-8)
Special Order 		2
- 7424-12 Rod Adapter Stud w/Nosepiece (-12) 1
1 H-41531 ↳ Stud (Main Body)
Special Order 		1
2 H-41527 ↳ Nosepiece (-12)
Special Order 		1
3 HFS1341 ↳ Cotter Pin (3/32" x 1" 18-8)
Special Order 		2



Eye/Jaw Toggle Reversible

Note: Click on your preferred part no. or scroll down to purchase. If it's a Special Order item, click on the part number and request it through the Contact Us form. A customer care agent will follow up shortly.

Exploded View Image Ref. Part N° Description Quantity
Eye/Jaw Toggle Reversible
- 7411.20 1/2 Eye/Jaw Toggle Reversible 1
1 H-37675C ↳ Toggle
Special Order 		1
2 H-42396 ↳ Crosspin (5/16" x 2 11/16") 1
3 HFS1109 ↳ Nylon Washer 2
4 H-42049 ↳ Cross Hole Plug
Special Order 		2
5 H-42395 ↳ Clevis Pin (1/2" x 1.46") 1
6 HFS220 ↳ Cotter Pin (1/8" x 1" 18-8) 1
7 HFS181 ↳ Cotter Pin (3/32" x 3/4" 18-8) 1
- 7311.20 1/2 Jaw/Jaw Toggle 1
1 H-42336 ↳ Toggle
Special Order 		1
2 H-42396 ↳ Crosspin (5/16" x 2 11/16") 1
3 H-42395 ↳ Clevis Pin (1/2" x 1.46") 2
4 HFS220 ↳ Cotter Pin (1/8" x 1" 18-8) 2
5 HFS181 ↳ Cotter Pin (3/32" x 3/4" 18-8) 1
6 HFS1109 ↳ Nylon Washer 2
- 7311.20 5/8 Stud/Jaw Toggle 1
1 H-41300 ↳ Toggle
Special Order 		1
2 H-42396 ↳ Crosspin (5/16" x 2 11/16") 1
3 H-42397 ↳ Clevis Pin (5/8" x 1 1/2") 2
4 H-43207 ↳ Stud
Special Order 		1
5 HFS220 ↳ Cotter Pin (1/8" x 1" 18-8) 3
6 HFS181 ↳ Cotter Pin (3/32" x 3/4" 18-8) 1
7 HFS1109 ↳ Nylon Washer 2



Long Link Plate w/Toggle

Note: Click on your preferred part no. or scroll down to purchase. If it's a Special Order item, click on the part number and request it through the Contact Us form. A customer care agent will follow up shortly.

Exploded View Image Ref. Part N° Part N° #2 Description Quantity
Halyard Swivel Diagram - 7311.21 1/2 7311.21 5/8 Long Link Plate w/Toggle 1
1 H-42159 H-41300 ↳ Toggle
Special Order 		1
2 H-42178 H-42178 ↳ Strap
Special Order 		2
3 H-42170 H-42171 ↳ Upper Clevis Pin (Custom)
Special Order 		1
4 H-42395 H-42397 ↳ Lower Clevis Pin 1
5 H-42182 H-42182 ↳ Isolator
Special Order 		2
6 HFS220 HFS203 ↳ Cotter Pin 2
7 HFS1141 HFS1141 ↳ Nylon Locking Nut (M10)
Special Order 		2
8 HFS876 HFS876 ↳ Allen Cap Screws (M6x1x12MM SHCS) 4
9 833 833 ↳ Loctite Blue
Special Order 		1



Trim Caps & Foils

Note: Click on your preferred part no. or scroll down to purchase. If it's a Special Order item, click on the part number and request it through the Contact Us form. A customer care agent will follow up shortly.

Exploded view Image Ref. Part N° Description Quantity
Trim Caps & Foils 1 HFS1127 Trim Cap Screw 6x3/8" Tap (Qty includes 1 extra) 3
2 H-83391 Trim Cap (bottom half)
Special Order 		1
3 H-83390 Trim Cap (top half)
Special Order 		1
4 7511.31F Connector (Quantity is for standard pkg.)
Special Order 		6
5 H-83383 Connector Bushing (bottom, longer with hook)
Special Order 		6
6 H-83382 Connector Bushing (top half, shorter)
Special Order 		6
7 HFS980 Foil Screw M4x10mm FH SHCS (Qty includes extra) 26
8 7511.3 Foil 7' (2.13 m) (Quantity is for standard pkg.) 6
9 HFS1407 Feeder Screw M3x8mm SHCS (Qty includes 1 extra)
Special Order 		5
10 H-83419 Feeder Half
Special Order 		2
11 7511.33F Bottom Foil 2' (610 mm)
Special Order 		1
12 7511.FOILSET Foil set includes (6) 7511.30 and (1) 7511.33F
Special Order 		1



Connector w/Bushings and Foil Screws

Note: Click on your preferred part no. or scroll down to purchase. If it's a Special Order item, click on the part number and request it through the Contact Us form. A customer care agent will follow up shortly.

Exploded View Image Ref. Part N° Description Quantity
Connector w/Bushings and Foil Screws - 7511.31 Connector w/Bushings and Foil Screws 1
4 7511.31F ↳ Connector
Special Order 		1
5 H-83382 ↳ Connector Bushing (top half, shorter)
Special Order 		1
6 H-83383 ↳ Connector Bushing (bottom, longer w/ hook)
Special Order 		1
7 HFS980 ↳ Foil Screw 4



Halyard Swivel

Note: Click on your preferred part no. or scroll down to purchase. If it's a Special Order item, click on the part number and request it through the Contact Us form. A customer care agent will follow up shortly.

Exploded view Image Ref. Part N° Description Quantity
Halyard Swivel - HFG991 Halyard Swivel
Special Order 		1
1 H-83304 ↳ Clip/Smalley Ring
Special Order 		1
2 2110 ↳ Shackle 6 mm 2
3 MP-129 ↳ Torlon Ball Bearings
Special Order 		42



Instruction Manual & Accessories

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Exploded View Part N° Description Quantity
Instruction Manual & Accessories
5390 Instruction Manual
Special Order 		1
HFG739 Loctite Red
Special Order 		1
833 Loctite Blue
Special Order 		1
HFG233 7 mm Double Braid Polyester (70' / 21.3 m) 1


Extra Tools

Note: Click on your preferred part no. or scroll down to purchase. If it's a Special Order item, click on the part number and request it through the Contact Us form. A customer care agent will follow up shortly.

Exploded View Part N° Description Quantity
Extra Tools
7404 Lead Block Kit (sold separately) 1
7403 29 mm Outboard Lead Assembly 3
7402 57 mm Carbo Ratchet Assembly 1
7401 40 mm Carbo Assembly 1
HCP168 Horn Cleat
Special Order 		1
944 Halyard Restrainer (sold separately) 1
944ASSY Sheave/SS Inner Race Only
Special Order 		1
HFG467 Clevis Pin (1/4" x 9" 18-8) 1
HCP393 Bracket-Small
Special Order 		-
HFS118 Cotter Pin (1/16" x 1/2" 18-8)
Special Order 		1
7302 Halyard Deflector (sold separately) 1
Hex Keys
HCP1387 ↳ 2.5 mm 1
HCP1089 ↳ 3 mm
Special Order 		1
HFG640 ↳ 4 mm 1
HFG642 ↳ 5 mm 1
HFG643w ↳ 5 mm Long
Special Order 		1


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