Cruising
Mainsail Halyard
- Diameter
- 10 mm (3/8 in)
- Length
- 99 ft (30.2 m)
- Hardware
- Shackle
Unit price
/
Unavailable
Available to order · 5 options
J BoatsFractional Sloop2012
J/108 Parts
Lines here are cut for this rig
- Rig
- Fractional Sloop
- I
- 44.5 ft
- J
- 13.3 ft
- P
- 41.4 ft
- E
- 14.83 ft
Different version? Compare 14 related rigs
| Model | I | J | P | E |
|---|---|---|---|---|
| J/108 this page | 44.5 | 13.3 | 41.4 | 14.83 |
| J/109 | 46.5 | 13.3 | 43.25 | 15.5 |
| J/109 SD | 46.5 | 13.3 | 43.3 | 15.5 |
| J/110 | 46.2 | 13.2 | 42.3 | 15.5 |
| J/110 Al ODR | 46.2 | 13.2 | 42.3 | 15.5 |
| J/110 CF ODR | 46.2 | 13.2 | 42.3 | 15.5 |
| J/105 | 40.6 | 13.5 | 41.5 | 14.6 |
| J/105 OD | 40.5 | 13.5 | 41.5 | 14.6 |
| J/105 SD | 40.5 | 13.5 | 41.5 | 14.6 |
| J/105 SD ODR | 40.5 | 13.5 | 41.5 | 14.6 |
| J/111 | 47.74 | 13.85 | 45.24 | 14.5 |
| J/100 | 38.5 | 11.5 | 38 | 13.5 |
| J/97 | 41.25 | 11.71 | 39.5 | 13 |
| J/97E | 41.25 | 11.71 | 39.5 | 13 |
| J/120 | 50.5 | 14.5 | 46.5 | 17.8 |
Feet, from MAURIPRO Sailboat Data. If your mast or boom differs from every row, send us your measurements before ordering.
Line type
Grade
Halyards 12
-
$204.00 USD
List Price: $275.28 USD -
Performance Cruise
Mainsail Halyard
- Diameter
- 10 mm (3/8 in)
- Length
- 99 ft (30.2 m)
- Hardware
- Shackle
$541.00 USDList Price: $729.88 USDUnit price /UnavailableAvailable to order · 4 options
-
Club Racing
Mainsail Halyard
- Diameter
- 10 mm (3/8 in)
- Length
- 99 ft (30.2 m)
- Hardware
- Shackle
$602.00 USDList Price: $811.31 USDUnit price /UnavailableAvailable to order · 14 options
-
Grand Prix Racing
Mainsail Halyard
- Diameter
- 10 mm (3/8 in)
- Length
- 99 ft (30.2 m)
- Hardware
- Shackle
$746.00 USDList Price: $1,005.73 USDUnit price /UnavailableAvailable to order · 10 options
-
Cruising
Genoa Halyard
- Diameter
- 12 mm (1/2 in)
- Length
- 99 ft (30.2 m)
- Hardware
- Shackle
$426.00 USDList Price: $573.93 USDUnit price /UnavailableAvailable to order · 5 options
-
Performance Cruise
Genoa Halyard
- Diameter
- 10 mm (3/8 in)
- Length
- 99 ft (30.2 m)
- Hardware
- Shackle
$396.00 USDList Price: $533.58 USDUnit price /UnavailableAvailable to order · 4 options
-
Club Racing
Genoa Halyard
- Diameter
- 10 mm (3/8 in)
- Length
- 99 ft (30.2 m)
- Hardware
- Shackle
$724.00 USDList Price: $975.35 USDUnit price /UnavailableAvailable to order · 14 options
-
Grand Prix Racing
Genoa Halyard
- Diameter
- 10 mm (3/8 in)
- Length
- 99 ft (30.2 m)
- Hardware
- Shackle
$868.00 USDList Price: $1,169.76 USDUnit price /UnavailableAvailable to order · 10 options
-
Cruising
Spinnaker Halyard
- Diameter
- 10 mm (3/8 in)
- Length
- 105 ft (32.0 m)
- Hardware
- Shackle
$291.00 USDList Price: $392.46 USDUnit price /UnavailableAvailable to order · 5 options
-
Performance Cruise
Spinnaker Halyard
- Diameter
- 10 mm (3/8 in)
- Length
- 105 ft (32.0 m)
- Hardware
- Shackle
$411.00 USDList Price: $554.38 USDUnit price /UnavailableAvailable to order · 4 options
-
Club Racing
Spinnaker Halyard
- Diameter
- 10 mm (3/8 in)
- Length
- 105 ft (32.0 m)
- Hardware
- Shackle
$746.00 USDList Price: $1,005.07 USDUnit price /UnavailableAvailable to order · 14 options
-
Grand Prix Racing
Spinnaker Halyard
- Diameter
- 10 mm (3/8 in)
- Length
- 105 ft (32.0 m)
- Hardware
- Shackle
$899.00 USDList Price: $1,211.05 USDUnit price /UnavailableAvailable to order · 10 options
- View moreAll J/108 halyards & sheets
Made up to the lengths computed from the J/108's rig dimensions above. Colour and taper are chosen when you add to cart.
Sheets & guys 16
-
Cruising
Genoa Sheet
- Diameter
- 10 mm (3/8 in)
- Length
- 53 ft (16.2 m)
- Hardware
- None listed
$77.28 USDUnit price /UnavailableAvailable to order · 5 options
-
Performance Cruise
Genoa Sheet
- Diameter
- 10 mm (3/8 in)
- Length
- 53 ft (16.2 m)
- Hardware
- Soft shackle
$189.00 USDList Price: $262.52 USDUnit price /UnavailableAvailable to order · 4 options
-
Club Racing
Genoa Sheet
- Diameter
- 10 mm (3/8 in)
- Length
- 53 ft (16.2 m)
- Hardware
- Soft shackle
$202.00 USDList Price: $279.16 USDUnit price /UnavailableAvailable to order · 14 options
-
Grand Prix Racing
Genoa Sheet
- Diameter
- 10 mm (3/8 in)
- Length
- 53 ft (16.2 m)
- Hardware
- Soft shackle
$280.00 USDList Price: $385.02 USDUnit price /UnavailableAvailable to order · 8 options
-
Cruising
Spinnaker Sheet
- Diameter
- 10 mm (3/8 in)
- Length
- 70 ft (21.3 m)
- Hardware
- Shackle
$244.00 USDList Price: $329.47 USDUnit price /UnavailableAvailable to order · 5 options
-
Performance Cruise
Spinnaker Sheet
- Diameter
- 10 mm (3/8 in)
- Length
- 70 ft (21.3 m)
- Hardware
- Shackle
$326.00 USDList Price: $439.47 USDUnit price /UnavailableAvailable to order · 4 options
-
Club Racing
Spinnaker Sheet
- Diameter
- 10 mm (3/8 in)
- Length
- 70 ft (21.3 m)
- Hardware
- Shackle
$647.00 USDList Price: $872.47 USDUnit price /UnavailableAvailable to order · 14 options
-
Grand Prix Racing
Spinnaker Sheet
- Diameter
- 10 mm (3/8 in)
- Length
- 70 ft (21.3 m)
- Hardware
- Shackle
$750.00 USDList Price: $1,011.07 USDUnit price /UnavailableAvailable to order · 8 options
-
Cruising
Spinnaker Guy
- Diameter
- 10 mm (3/8 in)
- Length
- 53 ft (16.2 m)
- Hardware
- Shackle
$253.00 USDList Price: $341.08 USDUnit price /UnavailableAvailable to order · 5 options
-
Performance Cruise
Spinnaker Guy
- Diameter
- 10 mm (3/8 in)
- Length
- 53 ft (16.2 m)
- Hardware
- Shackle
$317.00 USDList Price: $427.70 USDUnit price /UnavailableAvailable to order · 4 options
-
Club Racing
Spinnaker Guy
- Diameter
- 10 mm (3/8 in)
- Length
- 53 ft (16.2 m)
- Hardware
- Shackle
$635.00 USDList Price: $855.56 USDUnit price /UnavailableAvailable to order · 14 options
-
Grand Prix Racing
Spinnaker Guy
- Diameter
- 10 mm (3/8 in)
- Length
- 53 ft (16.2 m)
- Hardware
- Shackle
$713.00 USDList Price: $961.43 USDUnit price /UnavailableAvailable to order · 8 options
-
Club Racing
Asymmetrical Spinnaker Sheet
- Diameter
- 10 mm (3/8 in)
- Length
- 70 ft (21.3 m)
- Hardware
- None listed
$252.00 USDList Price: $339.44 USDUnit price /UnavailableAvailable to order · 14 options
-
Grand Prix Racing
Asymmetrical Spinnaker Sheet
- Diameter
- 10 mm (3/8 in)
- Length
- 70 ft (21.3 m)
- Hardware
- None listed
$354.00 USDList Price: $478.04 USDUnit price /UnavailableAvailable to order · 8 options
-
Cruising
Gennaker Sheet
- Diameter
- 10 mm (3/8 in)
- Length
- 70 ft (21.3 m)
- Hardware
- Shackle
$244.00 USDList Price: $329.47 USDUnit price /UnavailableAvailable to order · 5 options
-
Performance Cruise
Gennaker Sheet
- Diameter
- 10 mm (3/8 in)
- Length
- 70 ft (21.3 m)
- Hardware
- Shackle
$593.00 USDList Price: $799.81 USDUnit price /UnavailableAvailable to order · 4 options
- View moreAll J/108 halyards & sheets
Made up to the lengths computed from the J/108's rig dimensions above. Colour and taper are chosen when you add to cart.
Compare grades
| Grade | Rope, as described on each product | Colours | Tapered option | From | Filter |
|---|---|---|---|---|---|
| Cruising7 lines | Cruiser XTS Polyester Double Braid | Up to 5 | No | $77.28 | |
| Performance Cruise7 lines | DX Performance SK38 with polyester cover | Up to 4 | No | $189.00 | |
| Club Racing7 lines | S Cup (Stirotec with polyester cover) | Up to 7 | Yes | $202.00 | |
| Grand Prix Racing7 lines | DX Cup Dyneema SK78 core with polyester coverTN Racing - Stirotex core / Technora Polyester cover | Up to 5 | Yes | $280.00 |
Rope names are quoted from each product's own description; prices are the lowest option for the J/108. Not sure which grade suits your sailing? Ask us.
Winches 2
-
Harken
Harken Self Tailing Winch Radial Size 46
Aluminum Black / Two Speed
Sized for this boat · Primary winches (genoa/jib sheets)
$1,597.95 USDList Price: $2,282.00 USDUnit price /UnavailableAvailable to order
-
Harken
Harken Self Tailing Winch Radial Size 35
Aluminum Black / Two Speed
Sized for this boat · Halyard winch
$1,033.95 USDList Price: $1,477.00 USDUnit price /UnavailableAvailable to order
- View moreAll winches
Spinnaker poles 1
-
Forespar
Forespar Standard Spinnaker Pole 3 in. Dia., 13 ft. 6 in. max. length (for Boats 30-35 ft.)
UXP/UXP Ends
Sized for this boat · Spinnaker pole
$1,331.96 USDList Price: $1,664.95 USDUnit price /UnavailableAvailable to order
- View moreAll spinnaker & whisker poles
Blocks 4
-
Harken Block
Classic Midrange Standard 76mm Single
Fiddle
Sized for this boat · Mainsheet block A (4:1 fiddle)
$208.95 USDUnit price /UnavailableAvailable to order
-
Harken Block
Classic Midrange HexaRatchet 76mm Single
Fiddle - 280 Cam-Matic / Becket
Sized for this boat · Mainsheet block B (4:1 fiddle)
$518.95 USDList Price: $589.05 USDUnit price /UnavailableAvailable to order
-
Harken Block
Wire High Strength 51mm
Wire
Sized for this boat · Boom vang cascade block (8:1)
$119.95 USDUnit price /UnavailableAvailable to order
-
Harken Block
Classic Midrange Standard 76mm Single
Fiddle - 280 Cam-Matic / Becket
Sized for this boat · Boom vang fiddle block with cam (8:1 cascade)
$423.95 USDList Price: $481.35 USDUnit price /UnavailableAvailable to order
- View moreAll blocks
Traveler & genoa cars 4
-
Harken
Harken Traveler Car 1 1/4 in (32.0 mm)
Stand-Up Toggle - Purchase: 4:1
Sized for this boat · Traveler car (Standard 4:1)
$494.95 USDList Price: $561.95 USDUnit price /UnavailableAvailable to order
-
Harken
Harken ESP End Controls
For Travelers: 6 1/4 in (32.0 mm) - Double Sheave and Cam Cleat (Pair)
Sized for this boat · Traveler end controls
$571.95 USDList Price: $649.85 USDUnit price /UnavailableAvailable to order
-
Harken Genoa Car
Slider Pinstop
For Tracks: 1 1/4 in (32.0 mm)
Sized for this boat · Genoa lead car (pinstop slider)
$1,212.95 USDList Price: $1,378.50 USDUnit price /UnavailableAvailable to order
-
Harken Block
Cruising ESP Aluminum 100mm Single
Footblock
Sized for this boat · Genoa sheet footblock
$230.00 USDList Price: $319.75 USDUnit price /UnavailableAvailable to order
- View moreAll travelers, tracks & genoa cars
Tracks are sold by length and are not included. Ask us for the track to suit your boat.
Mainsail covers 3
-
MAURIPRO
MAURIPRO Canvas Shop Mainsail Cover
High Neck for booms up to 16.4 ft (5.0 m)
$613.00 USDList Price: $802.24 USDUnit price /UnavailableAvailable to order · 10 options
-
MAURIPRO
MAURIPRO Canvas Shop Mainsail Cover
Horse Blanket for booms up to 16.4 ft (5.0 m)
$585.00 USDList Price: $765.83 USDUnit price /UnavailableAvailable to order · 10 options
-
MAURIPRO
MAURIPRO Canvas Shop Mainsail Cover
MZ for booms up to 16.4 ft (5.0 m)
$727.00 USDList Price: $986.50 USDUnit price /UnavailableAvailable to order · 10 options
- View moreAll J/108 mainsail covers
No J/108 part matches this search and these filters.
Parts marked "Sized for this boat" are chosen from the manufacturers' sizing guides (Harken, Forespar, Schaefer) using this boat's published dimensions. Check your boat's equipment before ordering.
Specifications
| Builder | J Boats |
|---|---|
| Designer | Johnstone |
| Years built | 2012 |
| Rig | Fractional Sloop |
| Hull | Keel/CB w/twin rudders |
| Construction | FG |
| Length overall | 35 ft 10.7 m |
| Waterline length | 30.5 ft 9.3 m |
| Beam | 11.5 ft 3.5 m |
| Draft | 3.9 ft 1.2 m |
| Displacement | 11,400 lb 5,171 kg |
| Ballast | 4,400 lb 1,996 kg |
| I · foretriangle height | 44.5 ft 13.56 m |
| J · foretriangle base | 13.3 ft 4.05 m |
| P · mainsail luff | 41.4 ft 12.62 m |
| E · mainsail foot | 14.83 ft 4.52 m |
| Forestay length | 13.3 ft 4.1 m |
| 100% jib area | 295.9 sq ft 27.5 m² |
| Mainsail area | 331.5 sq ft 30.8 m² |
| Jib + mainsail area | 627.5 sq ft 58.3 m² |
| Cruising spinnaker area | 503.1 sq ft 46.8 m² |
Source: MAURIPRO Sailboat Data, updated 2026-07-01. Always confirm against your own boat.
More for the J/108
- J/108 sailboat data
- All halyards & sheets for the J/108
- All J Boats boats
- Standing rigging, quoted to your rig
- All boats A–Z
- Ask us what fits your J/108
Other J Boats models
Questions
What J/108 parts does MAURIPRO carry?
The J/108 page lists halyards and sheets made up to this boat's rig lengths, mainsail covers, sails, winches, blocks, travelers, genoa cars, boom vangs and spinnaker poles sized with manufacturer guides where the boat size allows. Prices and availability shown are live from our catalogue.
How do I know a part fits my J/108?
Halyards and sheets are made up to lengths computed from the J/108's published rig dimensions (I, J, P, E). Other parts are matched with manufacturer sizing guides and are labelled as sized for this boat. Fit can still depend on your boat's year, builder and rig, so check the product details or ask our technical team before you order.
Where can I find the J/108 rig dimensions?
Our J/108 Sailboat Data page lists the rig dimensions (I, J, P, E) and other published data we hold for this boat. Figures come from a sailboat database and may differ from your boat as built.