Hobie 18 Parts

Hobie 18 Parts

396 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.

     

    396 products
    Daggerboard Carpet

Murrays Part# 56-1082

​Approximately 1-1/2″ wide carpet installs in daggerboard wells.

Nacra factory item #1083.


Sold by the foot.
    DAGGERBOARD CARPET
    Murrays Sports
    $1.00
    Out of Stock
    Hobie rivet casings sleeves seal rivets to prevent water penetration. When used with a rivet they seal the hole to prevent water from getting through the center of the rivet. Rivet Casings are recommended for use on all rivets on the mast to keep the mast water tight. Compatible with all 3/16 diameter rivets up to 5/8" long. Compatible with all rivets on Hobie, Nacra and Prindle catamarans except traveler tracks. Requires 13/64" hole. Hobie part number 8011291, 8011290, also called rivet cap.
    RIVET CASING 6-10(3/16 X 5/8)
    Hobie
    $0.99
    Screw 1/4-20 x 1" THMS-P SS

Murrays Part# 50-8030701

Hobie® factory replacement 1/4-20 x 1" stainless steel screw. Used on Hobie® pre-EZ-Loc rudder system, tendon tiller connector, rudder adjuster, Hobie 20 shroud anchor plate.

Applications:

H18/ Hobie 18 SX
Rudder Adjuster Screw: 1

Compare to Hobie Part# 8030701
    SCREW STAINLESS STEEL 1/4-20x1"
    Hobie
    $0.99
    Rivet CCP 6-10 (3/16 X 5/8)
Murrays Part# 19-5034
Stainless steel 3/16" x 5/8" rounded pan head rivet. Compare to Hobie Cat® #8010121.
Halyard mast cleat rivet
    RIVET CCP 6-10 (3/16 X 5/8)
    Misc
    $0.85
    Rivet CCP 6-8 (3/16 X 1/2)
Murrays Part# 19-5033
Stainless steel 3/16" x 1/2" rounded pan head rivet. Compare to Hobie Cat® #8011231.
    RIVET CCP 6-8 (3/16 X 1/2)
    Misc
    $0.85
    Nut Nylock 3/8-16" Stainless Steel

Murrays Part# 19-2524

Stainless 3/8-16 hex nut with nylock insert will not rust or work loose if properly installed. Used on newer (1994) Hobie 16 pylon bolt.

Hobie Part# 8050521
    NUT NYLOCK 3/8-16" (SS)
    Misc
    $0.80
    Nut Low Profile 5/16-24 Nylock

Murrays Part# 50-8050341

Hobie® factory replacement 5/16-24 low-profile nylock nut. Used in Hobie 18SX wings mounting bar kit (#50-65071001).

Hobie Part# 8050341
    NUT LOW PROFILE 5/16-24" NYLOCK
    Hobie
    $0.79
    Screw THMS 1/4-20 X 1-5/8"

Murrays Part# 50-8030601

Hobie® factory replacement 1/4-20 x 1-5/8" screw.

Hobie Part# 8030601
    SCREW THMS 1/4-20 X 1-5/8"
    Hobie
    $0.79
    Screw RHMS 1/4-20 X 1"

Murrays Part# 50-8030211

Hobie® factory replacement round head machine screw measures 1/4-20 x 1". Measurements are diameter and threads per inch times grip length.

Applications:
Hobie 18 - Shroud anchor plate screw
    SCREW RHMS 1/4-20 X 1"
    Hobie
    $0.79
    Screw Boom Clamp 10-24 X 1.25 FHMS-S

Murrays Part# 50-8031011

Hobie® factory replacement screw for the boom clamp (#50-61711000) on the Hobie 18. #10-24 x 1-1/4" flat head machine stainless screw with Phillips head.

Hobie Part# 8031011
    SCREW 10-24x 1-1/4"
    Hobie
    $0.79
    Out of Stock
    Nut Nylock 3/8-24

Murrays Part# 50-8050511

Replacement 3/8-24 nylock nut is used on Hobie® 14, 16 and 18 dolphin striker rods, as well as Hobie® 17 inboard support.

Hobie Part# 8050511
    NUT NYLOCK 3/8-24"
    Hobie
    $0.79
    3/16 - 1/4" Split Ring with Pigtail
Murrays Part# 22-9491
A pigtail makes this split ring (ring ding) easier to open than standard split rings.

For use on 3/16″ – 1/4″ clevis pins
Material: 316 Stainless steel.
Medium Split ring
Dimensions: 5/8″ Diameter
This is the most common size Split ring on Hobie, Nacra and Prindle Catamarans.
Applications:
All Hobies Shroud and Forestay split ring
H18/ Hobie 18 SX – Tiller Yoke Clevis Pin Ring
Also called Ring Ding, Clevis Ring, Cotter Ring or Ringy Ding
    3/16 - 1/4" SPLIT RING WITH PIGTAIL
    Misc
    $0.75
    RIVET CCP 6-6 (3/16 X 3/8)
Murrays Part# 19-5032
Stainless steel 3/16" x 3/8" pan head rivet
Among other uses, the Stainless steel 3/16" x 3/8" pan head rivet can be used when Hobie® rivet #8010131 is specified:
Hobie 14 (2) or 16 (4) mast head
Hobie Wave/Getaway/14/16/17/18/18SX/ mast base (4)
Hobie 14/16 rudder upper casting (2)
Hobie 14/16 tiller end cap (2)
Hobie 14/16 boom front end cap (3)
Pair with stainless steal rivet casings to seal the holes when using on the mast.
    RIVET CCP 6-6 (3/16 X 3/8)
    Misc
    $0.75
    Murrays PN 001-0053

The Murrays Rudder Stiffening Spacer is a 2" diameter spacer for use on Hobie, Nacra and Prindle catamarans to eliminate excessive clearances between rudders and castings which cause rudder slop, side to side wobble, and thwart rudder alignment. A kit with spacers and nuts is also available (#01-2053).  The Murrays Rudder Stiffening Spacer are quite thin so that you can achieve a perfect fit. Standard kits come with 8 spacers.
    RUDDER STIFFENING SPACER
    Murrays Sports
    $0.75
    3/16 - 1/4" Split Ring
Murrays Part# 22-9492
Stainless steel split ring (ring ding) for 3/16″-1/4″ diameter clevis pin. This is the standard size Hobie split ring used all over the boats, most commonly on the shrouds, forestay and roller furler
Medium Split ring
Dimensions: 5/8″ Diameter
Material: 316 Stainless steel.
This is the most common size Split ring on Hobie, Nacra and Prindle Catamarans. 20860000 Medium Clevis Ring.
    3/16-1/4" SPLIT RING
    Misc
    $0.75
    Nut Nylock 5/16-18 Stainless Steel
Murrays Part# 19-2520
5/16-18 nylock nut is used on Hobie® rudders. The stainless steel hex nut with nylock insert will not rust or work loose if properly installed. Compare to Hobie Cat® item #8050311 and 8050321 shroud anchor pin nut
Used with Hobie Getaway Bow Tang Bolt
    NUT NYLOCK 5/16-18 (SS)
    Misc
    $0.75
    Screw PHMS 1/4-20 X 1"
Stainless Steel

Murrays Part# 19-3020

Stainless steel, slotted pan head 1/4-20 x 1" machine screw to fasten mast bearing on pre-1990 Hobie® 18. Other uses include universal Prindle/Nacra bow plate and bow tang on Prindle 15/16/18/Escape.

Replaces Murrays item #56-F125.
    1/4-20 X 1" Stainless Steel Screw
    Misc
    $0.70
    Screw 10-24 X 1.5" (Nylon)

Murrays Part# 50-8031031

Hobie® factory replacement nylon 10-24 x 1-1/2" screw is used on Hobie 18 front corner castings.
    SCREW 10-24 X 1.5" (NYLON)
    Hobie
    $0.55
    3/16" Split Ring - 7/16″ Diameter
Murrays Part# 22-9490
Stainless steel split ring for 1/8-3/16″ diameter clevis pins. Comparable to Hobie Cat® #81503100 Small Clevis Ring. This is a super small size, best for locations where you may be concerned about it snagging on something. The small size helps prevent it from snagging on lines, sheets, sails and clothing.
    3/16" SPLIT RING
    Misc
    $0.50
    1/2 BALL (NYLON) - Hobie half round washer spacer tiller connector - Hobie part number 11510000 HOBIE HALF SPHERE TILLER CONNECTOR
    Tiller Connection Kit
Murrays Part# 001-2061
The Murrays Tiller Connection Kit assures consistent rudder alignment through the full rudder sweep. Spring-loaded half balls and contoured spacers take the slop out of the tiller-to-crossbar connection on Hobie Cats. Racing class legal. Each kit contains 2 connectors to join the tiller crossbar to the tiller arms. Compare to Hobie Cat® #3052.
Applications:; Hobie 14, 16, 17, 18, 18SX
11520005 and 3052
    NYLON 1/2" BALL
    Murrays Sports
    $0.50
    Hobie Drain Plug Screw

Murrays Part# 50-8031731




This screw is used to hold the rudder housing in the back of many of the Hobie Beach cats. H14, H16, H17, H18

Hobie Part# 8031731
    HOBIE DRAIN PLUG SCREW
    Hobie
    $0.49
    Roller Furler Drum Ball Bearing
Murrays Part# 50-61670000
Hobie® factory replacement bearing for Hobie roller furler. A total of 18 ball bearings are required per furler.
    HOBIE ROLLER FURLER BEARING
    Hobie
    $0.49
    Used for tiller connection on Hobie Cats®. The stainless 1/4-20 stainless steel hex nut with nylock insert will not rust or work loose if properly installed. Equivalent to Hobie #8050111. Also Equivalent to Nacra/Prindle F123 gudgon nut for all Prindle and older Nacras.
Applications:
Hobie 18 / H18:
Bow Tang Nut Qty: 6
Rudder Adjustment: 1
Hobie Getaway: Forestay Yoke Nut
    NYLOCK NUT 1/4-20 SS
    Misc
    $0.45
    Nut Nylock #10-32 Stainless Steel Thick
Murrays Part# 19-2515
Mainsheet block replacement nut. The stainless hex nut with nylock insert will not rust or work loose if properly installed.

Fits Hobie Main Traveler Car.

Fits Hobie Tiller Hinge Screw.
Fits Hobie Masthead Sheave Screw H16 Hobie Getaway
Compare to Hobie Part Number 8050201
    NUT NYLOCK #10-32 (SS) THICK
    Misc
    $0.40
    Hobie 8080581 Hobie factory replacement 3/8" lock washer is used on Hobie 18 front and rear inboard support castings.
    WASHER LOCK 3/8"
    Hobie
    $0.39
    Screw 8-32 X 3/8" THMS Roller
Furler Drum

Murrays Part# 50-8030501



Hobie® factory replacement 8-32 x 3/8" screw for roller furler drum.

Hobie Part# 8030501
    SCREW 8-32X3/8" THMS
    Hobie
    $0.39
    Screw PHMS #10-32 X 1 Stainless Steel Slot Head
Murrays Part# 19-2915
Stainless steel, pan head #10-32 x 1" machine screw with slot is used as dolphin striker screw on all Prindles. Replaces Murrays item #56-F112.
Also used in some Hobie Applications, compare to 8030111 Hobie Part.
Applications:
H18/18 SX/16 and Getaway
Tiller Hinge Screw: 2
    SCREW PHMS #10-32 X 1" (SS)
    Misc
    $0.36
    WASHER #8 (WH NYLON)

Murrays PN 19-4006WH

White nylon washer is used for installation of access ports (hatches).
    WASHER #8 WHITE NYLON
    Misc
    $0.35
    Comptip Cap Plug

Murrays Part# 50-8090900


This part is used to seal the hole in the Comptip of a Hobie cat after the expanding foam has been put in.

Hobie Part# 8090900
    COMP-TIP CAP PLUG
    Hobie
    $0.35
    FHSMS #8 X 1 Stainless Steel

Murrays Part# 19-1620
Flat head, self-tapping, stainless steel #8 x 1" sheet metal screw.
This screw is commonly used to hold the track endcaps on pre 1997 H16 Jib Traveler Tracks and all H18 Jib Traveler Tracks.
Can screw into aluminum or fiberglass.
    SCREW FHSMS #8 X 1" (SS)
    Misc
    $0.34
    Screw FHSMS #8 X 3/4 Stainless Steel
Murrays Part# 19-1621
Flat head, self tapping, stainless steel sheet metal screw #8 x 3/4"
Compare to Hobie Part 8031501
Used to mount swivel jam cleat and Jib Car Stop
    SCREW FHSMS #8 X 3/4" (SS)
    Hobie
    $0.34
    Solid Rivet 1/8 x 5/16" Brass

Murrays Part# 19-5004


Solid Rivet 1/8 x 5/16 Brass

Used on sail headboards, clew and tack plates.

Hobie Part# 8010020
    SOLID RIVET-BRASS 1/8"
    Misc
    $0.29
    H18 Cotter Pin for Traveler

Murrays Part# 50-8060121

Hobie® factory replacement 3/32" x 2" stainless steel cotter pin is used on Hobie 18 main traveler car.

Hobie Part# 8060121
    H-18 COTTER PIN FOR TRAVELER
    Hobie
    $0.29
    Washer Flat 1/4 x 5/8"

Murrays Part# 50-8080521



Hobie® factory replacement 5/8" x 9/32" flat washer is used on Hobie 18 mast step assembly.

Hobie Part# 8080521
    WASHER FLAT 1/4 X 5/8"
    Hobie
    $0.26
    Out of Stock
    Washer 5/16 X 9/16 Flat

Murrays Part# 50-8080181

Hobie Part# 8080181
    WASHER FLAT 5/16 X 9/16"
    Hobie
    $0.19
    Cotter Pin 3/32 X 3/4
Murrays Part# 19-1015
Cotter pins are used on all Hobie, Nacra and Prindle rudder pins. They are used to secure the rudder pins. Compare to Hobie Cat® #8060111.
Stainless steel cotter pin measures 3/32" x 3/4".
    COTTER PIN 3/32 X 3/4" SS
    Misc
    $0.18
    Recently viewed