Hobie 18 Parts

Hobie 18 Parts

389 products

    Murrays Sports offers the most comprehensive selection of Hobie 18 parts available anywhere. Whether you're restoring a classic Hobie 18, maintaining a SX or Magnum model, preparing for a regatta, or simply replacing worn sheets, you'll find the replacement parts, rigging, sails, rudder components, trampolines, lines and accessories needed to keep your catamaran performing at its best. 


    Why the Hobie 18 Remains an Icon

    The Hobie 18 earned a reputation for combining speed, stability, and versatility. Unlike earlier beach cats, the Hobie 18 utilized twin daggerboards for improved pointing ability and superior upwind performance. Its powerful sail plan, rotating mast, and double trapeze setup made it one of the most exciting production catamarans of its era.

    Today, owners continue to value the Hobie 18 for:

    • Exceptional speed and acceleration
    • Superior upwind performance
    • High crew carrying capacity
    • Active racing fleets
    • Proven durability
    • Excellent restoration potential
    • Strong aftermarket parts support

    Whether you own a standard Hobie 18, Magnum, or SX model, proper maintenance ensures your boat continues delivering the performance that made it famous.


    Shop Hobie 18 Parts by Category

    Murrays Sports makes it easy to find Hobie 18 parts organized by system and application.

    Hobie 18 Rigging Parts

    Rigging is among the most critical systems aboard any performance catamaran. Properly maintained rigging keeps the mast secure while providing precise sail control.

    Popular Hobie 18 rigging components include:

    • Forestay
    • Shrouds
    • Bridle wires
    • Jib Halyard
    • Diamond wires
    • Trapeze wires
    • Roller Furler parts

    Because the Hobie 18 generates significant loads while sailing, regular rigging inspections are essential for safety and performance.

    Signs Your Rigging Needs Replacement

    • Broken wire strands
    • Corrosion around swages
    • Kinks in the rigging
    • When one wire breaks the other side should be replaced as well

    Replacing aging rigging before failure occurs helps prevent costly damage and improves confidence on the water.


    Hobie 18 Rudder Parts

    The Hobie 18 rudder system is engineered for precise steering at high speeds.

    Common replacement rudder components include:

    • Rudder blades
    • Rudder castings
    • Rudder cams
    • Rudder Pins
    • Tiller connectors
    • Tiller Crossbar
    • Tiller extensions
    • Rudder Lock Spring
    • Rudder Screw
    • Rudder Plunger
    • Rudder bushings
    • Rudder spacers

    Many Hobie 18 owners proactively replace rudder cams and pivot hardware as part of routine maintenance to ensure reliable engagement and steering response.

    Common Rudder Problems

    If you experience any of the following, it may be time for replacement parts:

    • Rudders that won't stay locked down
    • Excessive steering play
    • Rudder cams get stuck in one position
    • Excessive weather helm

    A properly maintained rudder system improves both safety and boat handling.


    Hobie 18 Trampolines

    The trampoline serves as the working deck and crew platform.

    Exposure to the following can eventually weaken trampoline material.

    • Sunlight
    • Saltwater
    • Sand
    • Sharp objects


    Installing a new trampoline can:

    • Improve comfort
    • Enhance safety
    • Restore appearance
    • Increase the stiffness and structure of the boat
    • Increase performance

    Whether you're replacing an original trampoline or upgrading to a performance model, Murrays Sports offers solutions designed specifically for the Hobie 18.


    Hobie 18 Sail Parts and Accessories

    The Hobie 18's powerful sail plan is a major reason for its legendary performance.

    Replacement sail-related components include:

    • Mainsail battens
    • Batten caps
    • Batten ties
    • Sail tell tales
    • Downhaul systems
    • Batten Pocket Protectors
    • Sail Bags
    • Sail repair tape

    Maintaining sail systems helps preserve efficiency and boat speed across a wide range of conditions.


    Hobie 18 Mast and Boom Components

    The rotating mast and spar system play a vital role in Hobie 18 performance.

    Available replacement components include:

    • Mast base casting
    • Mast hinge casting
    • Mast bearings
    • Mast step casting
    • Spreader systems
    • Rotation arms
    • Boom fittings
    • Gooseneck hardware
    • Tangs
    • Rivets
    • Downhaul System

    Routine inspection and maintenance help ensure safe operation and reliable sail control.


    Hobie 18 Hull Parts

    Although Hobie 18 hulls are known for their durability, fittings and hardware occasionally require replacement.

    Hull-related parts include:

    • Drain plugs
    • Inspection ports
    • Hull fittings
    • Deck hardware
    • Fasteners
    • Mounting brackets
    • Rail grip

    Regular inspection helps prevent water intrusion and prolongs hull life.


    Hobie 18 Magnum Parts

    The Hobie 18 Magnum introduced hiking wings that increased righting moment and crew comfort. These wings remain popular among recreational sailors and racers alike. The Magnum version became one of the most recognizable variants of the Hobie 18.

    Owners of Hobie 18 Magnum models often seek replacement:

    • Wing hardware
    • Mounting brackets
    • Structural fittings
    • Trapeze components
    • Rigging

    Maintaining wing systems ensures both safety and performance.


    Hobie 18 Racing Parts

    The Hobie 18 continues to enjoy an active racing community because of its speed, durability, and exciting handling characteristics. Many racers upgrade components to maintain competitive performance. Community discussions continue to highlight the Hobie 18 as a powerful and enjoyable platform for experienced sailors.

    Popular racing upgrades include:

    • Performance mainsheet systems
    • High-load blocks
    • Upgraded traveler controls
    • Lightweight tiller extensions
    • Modern control line systems
    • Racing trapeze hardware

    Properly maintained racing equipment helps sailors maximize boat speed while reducing friction and control loads.


    Restoring a Classic Hobie 18

    Many Hobie 18s built in the 1970s, 1980s, and 1990s remain active today. Because replacement parts are still readily available, the Hobie 18 is one of the most rewarding classic catamarans to restore.

    Common restoration projects include replacing:

    • Standing rigging
    • Sheeting lines and control lines
    • Trapeze system
    • Rudder locking hardware
    • Daggerboard
    • Trampolines
    • Sail battens
    • Drain plugs
    • Hull fittings
    • Blocks and cleats

    A well-restored Hobie 18 can deliver modern performance while preserving a classic multihull design.


    The Most Common Hobie 18 Replacement Parts

    Based on long-term owner demand, frequently replaced Hobie 18 parts include:

    1. Rudder cams
    2. Shrouds
    3. Forestays
    4. Trapeze wires
    5. Mainsheets
    6. Jib sheets
    7. Sail battens
    8. Trampolines
    9. Drain plugs
    10. Access ports

    Keeping these items in top condition helps avoid many common maintenance issues.


    Why Buy Hobie 18 Parts from Murrays Sports?

    Murrays Sports has been helping catamaran sailors maintain and upgrade their boats for decades. Our Hobie 18 inventory includes replacement parts organized by boat model and application, making it easier to find exactly what you need.

    Customers choose Murrays Sports for:

    • Extensive Hobie 18 parts inventory
    • Expert catamaran knowledge
    • Fast shipping
    • Technical support
    • Hard-to-find replacement components
    • Racing and restoration expertise
    • Trusted service since the early days of beach cat sailing
    • We make our own rigging and can usually ship out complete rigging sets within 24 hours

    Hobie 18 Frequently Asked Questions

    What are the most commonly replaced Hobie 18 parts?

    Rudder cams, standing rigging, trapeze wires, trampolines, sail battens, rudder pins, mast bearings and mainsheet systems are among the most frequently replaced components.

    Are parts available for older Hobie 18 models?

    Yes. Many replacement parts remain available for standard Hobie 18, Magnum, and SX boats, making restoration and maintenance practical.

    What makes the Hobie 18 different from the Hobie 16?

    The Hobie 18 features daggerboards, a larger sail plan, increased carrying capacity, and improved upwind performance compared to the Hobie 16.  The 18 is easier to tack and does not pitch pole as easily.

    How often should Hobie 18 rigging be inspected?

    Rigging should be inspected before every sailing season and periodically throughout the year, especially on boats exposed to saltwater environments.

    Can I improve performance with upgraded hardware?

    Yes. Modern blocks, racing sheets, rudder tuning, and performance rigging can significantly improve sail handling and efficiency.

    Target SEO Keywords

    Hobie 18 parts, Hobie 18 replacement parts, Hobie 18 rigging, Hobie 18 rudder parts, Hobie 18 daggerboards, Hobie 18 trampolines, Hobie 18 sail parts, Hobie 18 Magnum parts, Hobie 18 racing parts, Hobie catamaran parts, Hobie 18 restoration, Hobie 18 hardware, Hobie 18 accessories, catamaran replacement parts, Murrays Sports Hobie 18 parts.

     

    389 products
    Out of Stock
    hobie-18-mast-60610010
    H-18 MAST ASSEMBLY
    Hobie
    $2,345.00
    Out of Stock
    H18SX Mainsail (White)

Murrays Part# 50-68991100

Hobie® factory white main sail for Hobie® 18SX.
    H-18SX MAINSAIL (WHITE)
    Hobie
    $1,937.00
    Out of Stock
    H18 Custom Color Sail

Murrays Part# 50-60991991

Choose from available colors to make your own custom sail color scheme. Contact us to find out the current color options and for lead time. All custom color sails are special order from the Hobie factory and will take at least 5 weeks to deliver.
    H-18 CUSTOM COLOR SAIL
    Hobie
    $1,696.00
    HOBIE 18 MAIN SAIL - WHITE

White Hobie 18 main sail from Hobie.  Discontinued product, limited availability.

Hobie part number 60991011
    H-18 MAINSAIL (WHITE)
    Hobie
    $1,429.00
    Out of Stock
    H18 Main Sail (Coronado)

Murrays Part# 50-60991086

Coronado color pattern Hobie factory mainsail.

Hobie Part# 60991086
    H-18 MAINSAIL (CORONADO)
    Hobie
    $1,400.00
    Out of Stock
    H18 Comptip Assembly

Murrays Part# 50-60611100




Hobie® factory Hobie 18 CompTip Assembly for Hobie 18 mast. A CompTip is the upper section of Hobie mast built in or after 1968. Fiberglass and non-conductive, it is designed to prevent electrocution by contact with a high power line.
    H-18 COMPTIP ASSEMBLY
    Hobie
    $939.00
    Hobie 68040256
    TRAMP WINGS SET H18SX/21 TEAL
    Hobie
    $690.00
    Out of Stock
    H18SX/21 Trampoline Wing Set-Black

Murrays Part# 50-68040255

Hobie® factory replacement black mesh tramps. Lacing line is not included; order 32 feet of 3/16" line #39-1410BK per side.
    Hobie 18SX/21 TRAMPOLINE WING SET-BLACK
    Hobie
    $690.00
    H18 Jib Sail With Window (White)

Murrays Part# 50-60992011

Hobie factory replacement sail is Hobie class legal for racing.

The only current production color is white, but custom color jibs are available for special order. Hobie will typically have access to any color that is currently being used on their production boat sails. Contact for current color availability and lead time.
    Hobie 18 JIB SAIL WITH WINDOW (WHITE) OEM
    Hobie
    $669.00
    Out of Stock
    H18 Boom Assembly-Black

Murrays Part# 50-60720011

Hobie® factory replacement part: The black Hobie 18 boom assembly includes all integrated accessories pictured. Main sheet block hangers, out haul cleat, outhaul traveler, mast rotation cleat, endcaps and gooseneck pin.

Hobie Part#60720011
    H-18 BOOM ASSEMBLY-BLACK
    Hobie
    $655.00
    Hobie 18 rigging set: Forestay, upper forestay, shrouds, bridles, trapeze wires
    H-18 RIGGING KIT
    Murrays Sports
    $650.00
    Out of Stock
    H18 Mesh Trampoline-Black

Murrays Part# 50-60970055



The gold standard for Hobie 18 trampolines, this black mesh trampoline features a heavy duty fabric, pockets, and reinforced grommets.

Hobie Part# 60970055
    HOBIE 18 MESH TRAMPOLINE-BLACK
    Hobie
    $631.99
    CATAMARAN BOAT YARD COVER
    Misc
    from $625.00
    H18 Aft Crossbar Extrusion-Black

Murrays Part# 50-60191211

Hobie® factory replacement H18 Black Aft Crossbar Extrusion.
    H-18 AFT CROSSBAR EXTRUSION-BLACK
    Hobie
    $572.00
    HOBIE EPO3 RUDDER BLADE
    Hobie
    $569.00
    Harken 57mm Carbo 10:1 System

Murrays Part# 28-101

This system offers 10:1 purchase power! Light weight, low profile and very strong, these Carbo AirBlocks® have enormous working range, with a higher working load than standard blocks, even though they are lighter in weight. The base block has an on-off ratchet and will roll freely in both directions when disengaged, such as in light air. Engage the ratchet in heavy air when you need the mechanical advantage of the ratchet.
    HARKEN 57mm CARBO 10:1 SYSTEM
    Harken
    $560.00
    Out of Stock
    H18 Vinyl Trampoline Set-White

Murrays Part# 50-60970000

White vinyl trampoline for Hobie 18.

Hobie Part# 60970000
    H-18 VINYL TRAMPOLINE SET-WHITE
    Hobie
    $539.99
    Harken 57mm Carbo 8:1 System

Murrays Part# 28-81



Lightweight, low profile and very strong, these Carbo AirBlocks® have enormous working range, with a higher working load than standard blocks, even though they are lighter in weight! The Carbo Ratchmatic® is a load-sensing ratchet block that rolls freely in both directions under low loads, and automatically engages the ratchet as loads increase.
    HARKEN 57mm CARBO 8:1 SYSTEM
    Harken
    $535.00
    Harken 57mm Carbo Ratchamatic 7:1 Low-Profile Mainsheet System

Murrays Part# 28-71

The Harken 7:1 Mainsheet System includes a 57mm Triple Carbo Ratchamatic Base with 40mm Carbo single (Harken #HSB360) added on to it and a 57mm Triple with becket boom block (Harken #2605) By adding the 40mm Carbo single to the base block we have turned this into a low profile 7:1 Mainsheet system. line is not included. Safe working load is 1500 pounds; breaking strength is 3750 pounds.
    HARKEN 57MM CARBO RATCHAMATIC 7:1 LOW-PROFILE MAINSHEET SYSTEM
    Harken
    $535.00
    CHEATA MOTOR BRACKET
    Murrays Sports
    from $495.00
    H18 Black 3 Piece Trampoline

Murrays Part# 30-3103



Murrays black mesh tramp for Hobie® 18 is not Class-legal for racing. Polypropylene mesh is the ideal material for beach cat tramps because it is light, strong and comfortable with very good UV resistance, plus it allows water to drain, so you won't be sitting in a puddle. The Hobie 18 version comes with a sewn in pocket in the front for your halyard and jib furling line.
    H-18 3PC MESH TRAMPOLINE-BLACK
    Murrays Sports
    $495.00
    H18 1-Piece Bias Cut Trampoline-Black

Murrays Part# 30-3103-2



This one-piece, bias-cut, black mesh tramp for Hobie® 18 provides a smooth, uncomplicated deck and includes an 11"x12" pocket and adjustable hiking straps. Polypropylene mesh is the ideal material for beach cat tramps because it is light, strong and comfortable with very good UV resistance, plus it allows water to drain, so you won't be sitting in a puddle. Two-year warranty on workmanship and materials.
    H-18 1PC BIAS CUT TRAMPOLINE-BLACK
    Murrays Sports
    $495.00
    H18SX Wing Trampoline with Teflon Thread-Grey


Murrays Part# 30-3105-5


These are the replacement wing trampolines for your Hobie 18 SX wings.
Made of high-quality and very durable polyester coated vinyl Textilene 90 trampoline premium mesh

Perfect fit
Tenara Teflon Thread- Tenara Teflon thread by Gore. Tenara has a 15 year warranty in the sun. If you store your boat on the beach this is the best thing you can add to extend the life of your trampoline.
    H-18SX WING TRAMPOLINE WITH TEFLON THREAD-GREY
    Murrays Sports
    $485.00
    Harken 57mm Triple Ratchamatic® Block-Swivel, Cam Cleat, 40 mm Block

Murrays Part# 28-2632

The Harken Carbo Ratchmatic® is a load-sensing ratchet block that rolls freely in both directions under low loads, and automatically engages the ratchet as loads increase. Shifting between ratchet and light air modes is seamless. Unloaded, the sheet runs freely during mark roundings and jibes. Ratchet engagement may be adjusted to a higher or lower load according to strength and sailing style.
    HARKEN 57MM TRIPLE RATCHAMATIC BLOCK-SWIVEL, CAM CLEAT, 40MM BLOCK
    Harken
    $428.90
    Hobie 18 Magnum wing trampoline set.

Requires 2 x 16' pieces of 3/16 VLS line to install
    Hobie 18 Magnum wing trampoline set.

Requires 2 x 16' pieces of 3/16 VLS line to install.
    H-18 MAGNUM WING TRAMPOLINE-BLACK
    Murrays Sports
    $395.00
    H18SX/21sc WING TRAMPOLINES
Murrays Hobie 18SX and 21SC Wing Trampolines. Lace on. Sold as a pair.
Compare to Hobie part number 68040255
Not compatible with the Hobie 18 Magnum.
    H18SX/21sc WING TRAMPOLINES

Murrays Hobie 18SX and 21SC Wing Trampolines.  Lace on.  Sold as a pair.  

Compare to Hobie part number 68040255

Not compatible with the Hobie 18 Magnum.
    H18SX/21SC WING TRAMPOLINES-BLACK
    Murrays Sports
    $395.00
    Out of Stock
    Compare to Hobie part number 62000001 - Hobie 18 Main Battens
    Compare to Hobie part number 62000001 - Hobie 18 Main Battens
    H-18 MAIN FIBERGLASS BATTEN SET
    Murrays Sports
    $380.00
    HOBIE ROLLER FURLER DRUM ASSEMBLY
    Hobie
    $379.00
    UNIVERSAL MAMA BOB MAST FLOAT

The Hobie Mama Bob Universal Mast Float Kit aids in preventing your boat from going full turtle (mast straight down) when capsized, helping to prevent damage to your rig and sails should they contact the bottom. This model (Hobie® Cat #30112) is mast-side mounted system. The Universal Mama Bob float has been adapted for use as a shaft-mounted "universal" mast float that does not rotate, but is held in a fore-aft position in alignment with the mast for minimum drag while
    MAST FLOAT UNIVERSAL MAMA BOB
    Hobie
    $366.99
    H17/18/20 Upper Right Rudder Casting

Murrays Part# 50-50341001



Hobie® factory replacement upper right rudder casting for Hobie® 17, 18 or 20. Use four 6-8 rivets (#19-5033) for installation.
Hobie Part# 50341001
    H-17/18/20 UPPER RIGHT RUDDER CASTING
    Hobie
    $366.99
    Out of Stock
    H17/18/20 Lower Rudder Casting

Murrays Part# 50-50322001




Hobie® factory replacement lower rudder casting for Hobie® 17, 18, 20, Getaway and Wave. This casting does not fit Hobie® 14 or 16.
    H-17/18/20 LOWER RUDDER CASTING
    Hobie
    $332.99
    Powerstick_carbon Hobie tiller extension
    Powerstick carbon tiller extension - Hobie, Nacra, Prindle, Dart, G-Cat, Sol Cat
    Black Blue Red Orange
    POWERSTICK TELESCOPING CARBON TILLER EXTENSION 62-115" - YOKE
    Murrays Sports
    from $315.00
    Out of Stock
    H17/18/20 Upper Rudder Casting
Murrays Part# 50-50321001


Hobie® factory replacement upper left rudder casting for Hobie® 17, 18, 20 or Wave. Use four 6-8 rivets (#19-5033) for installation.
    H-17/18/20 UPPER RUDDER CASTING
    Hobie
    $314.00
    Out of Stock
    Downhaul Kit 8:1 H18
Murrays Part# 001-2150
This is a performance upgrade downhaul kit that give increased performance control for your Hobie 18 Catamaran. The downhaul leads are run to the side of the boat for crew control and the loads are oriented to reduce sail tack damage that is common on the H18. It takes minutes to install with a rivet gun a drill and approximate measuring.
The kit was born from a discussion at the 2023 NACs wherein many of the boats in Division 4 have a variation of the
    H-18 DOWNHAUL KIT 8:1
    Murrays Sports
    $310.00
    Out of Stock
    ROLLER FURLING DRUM REBUILT
    Hobie
    Sale price $299.00 Regular price $379.00 Save $80
    Out of Stock
    Power Righting System I

Murrays Part# 13-4101
    POWER RIGHTING SYSTEM I
    Murrays Sports
    $299.00
    Murrays 1 Piece Econo Boat Cover

Econo covers are economical, lightweight and waterproof. They are basic one-piece catamaran covers that fit loosely and secure with nylon ribbon ties. The econ covers fit multiple catamarans from the Hobie Wave to the Nacra F18. Econo covers provide full coverage and are ideal for use on the beach and in the yard thru the winter.

Materials: The we use a 3-ply polyvinyl material that has a black interior, a fiber laminate core that effectively resists rips, Hobie 16
    Murrays 1 Piece Econo Boat Cover

Econo covers are economical, lightweight and waterproof. They are basic one-piece catamaran covers that fit loosely and secure with nylon ribbon ties. The econ covers fit multiple catamarans from the Hobie Wave to the Nacra F18. Econo covers provide full coverage and are ideal for use on the beach and in the yard thru the winter.

Materials: The we use a 3-ply polyvinyl material that has a black interior, a fiber laminate core that effectively resists rips, Hobie 16, wave
    ECONOMY CATAMARAN COVER - HOBIE, NACRA, PRINDLE
    Murrays Sports
    from $289.00
    Recently viewed