Hobie 18 Parts

Hobie 18 Parts

392 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.

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    392 products
    Bolt Socket Head 3/8-16 X 2.50"

Murrays part# 50-8040521

Hobie® factory replacement 3/8-16 x 2.50" socket head bolt is used on Getaway wing and Hobie® 18 rear inboard support.

Hobie Part# 8040521
    BOLT 3/8-16 X 2.50"
    Hobie
    $4.59
    Universal Drain Plug for most Hobie, Nacra and Prindle Catamarans which includes a gasket and fits most Hobie, Nacra and Prindle catamarans. Hobie part number 10091000
    Hobie drain plug 10091000 Hobie 18
    HOBIE DRAIN PLUG WITH GASKET
    Misc
    $4.50
    Toggle Strap 12"-24"

Murrays Part# 13-1020

Our handy toggle strap secures items with circumferences from 12" to 24". It is constructed of 1/8" shock cord that is secured with a 1-1/8" end stop.

Sold individually

Compare to Hobie Cat® Part# 370
    TOGGLE STRAP 12" - 24"
    Murrays Sports
    $4.00
    Ronstan Stainless Thimble for 5mm (3/16") Wire



Ronstan thimble is used on shrouds. Constructed of grade 316 stainless steel. Weight: .2 oz.
    RONSTAN STAINLESS THIMBLE FOR 5MM (3/16") WIRE
    Ronstan
    $3.56
    Stainless steel clevis pin. Measurement is 1/4" diameter x 1-3/4" grip length (shoulder to the split ring hole).

Uses:

This pin replaces #56-7809, gooseneck clevis pin for Nacra 5.2 and all Prindles.

Hobie 18 main traveler car 

Prindle Part# 6004

 Comparable to Hobie Cat® Part# 8020431
    1/4 X 1-3/8" Clevis Pin

Murrays Part# 22-9804

Stainless steel clevis pin. Measurement is 1/4" diameter x 1-3/4" grip length (shoulder to the split ring hole).

This pin replaces #56-7809, gooseneck clevis pin for Nacra 5.2 and all Prindles.

Prindle Part# 6004

Comparable to Hobie Cat® Part# 8020431
    CLEVIS PIN 1/4 X 1-3/8"
    Misc
    $3.30
    Clevis Pin 1/4 X 1-1/8
Murrays Part# 22-9803
Stainless steel clevis pin measures 1/4" diameter x 1-1/8" grip length (shoulder to the split ring hole).
Compare to Hobie Part 8020420 and 8020410
    CLEVIS PIN 1/4 X 1-1/8"
    Misc
    $2.99
    Clevis Pin1/4 X 1"
Murrays Part# 50-8020401
Hobie® factory replacement 1/4" x 1" clevis pin.
Compare to Hobie Part Number 8020411
Applications:
H18 / Hobie 18 SX
Tiller Yoke Clevis Pin: 1
    CLEVIS PIN 1/4 X 1"
    Hobie
    $2.99
    Clevis Pin 1/4 x .83"

Murrays Part# 50-8020391

Hobie® factory clevis pin measures 1/4" diameter x .8285" grip length (shoulder to the split ring hole).
    CLEVIS PIN 1/4 X .83"
    Hobie
    $2.85
    Stainless steel clevis pin. Measurement is 1/4" diameter x 5/8" grip length. Hobie part number 8020361, 8020381 and 8020380.
    1/4 X 5/8" Clevis Pin

Murrays Part# 22-9802


Stainless steel clevis pin. Measurement is 1/4" diameter x 5/8" grip length (shoulder to the split ring hole). 


Uses:

Most commonly used to connect shrouds and forestays to 7 or 10 hole shroud adjusters on Hobie, Nacra and Prindle catamarans.

Hobie 18 gooseneck vertex pin

Hobie 18 outhaul car sheave pin

Hobie Part# 8020361, 8020381 and 8020380
    CLEVIS PIN 1/4 X 5/8"
    Misc
    $2.70
    Bolt Hex Head 1/4-20 X 5" (Stainless Steel)

Murrays Part# 19-2226

Stainless steel 1/4-20 x 5" hex head bolt is used for Hobie® 18 mast rotation arm. Use #19-2516 nut.

Equivalent to Hobie® Part# 8040111
    BOLT HEX HEAD 1/4-20 X 5" (SS)
    Misc
    $2.70
    Clevis Pin 1/4 X 1/2
Murrays Part# 22-9808
Stainless steel clevis pin. Measurement is 1/4" diameter x 1/2" grip length (shoulder to the split ring hole). Substitute for Hobie Cat® #8020371.
    CLEVIS PIN 1/4 X 1/2"
    Misc
    $2.55
    Wind Vane Replacement Tips and Washers 

Coffee Marine Wind Vane Tip and Washer kit that fits the original Coffee Marine Bridle Vane and the Hobie Standard Bridle Vane. These are easy to knock off or misplace. Stash a couple in your tool box and never be without your trusty Bridle Fly! 
    WIND VANE REPLACEMENT TIPS & WASHERS
    Murrays Sports
    $2.50
    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
    PLASTIC CONTOURED SPACER
    Murrays Sports
    $2.50
    Batten Cap Leech Adjustable H16 Jib Each

Murrays Part# 012-3004-1

No more knots at the trailing edge. Adjust Hobie® 16 jib sail shape in seconds without tying and untying knots. Release tension to prolong sail shape and life. Individual cap.

Sold Individually
    ADJUSTABLE LEECH JIB BATTEN CAP (EA)
    Tren-Tec
    $2.25
    Clevis Pin 1/4X3/8

Murrays Part# 50-8020371





This is commonly used for Hobie Rigging parts. It has a 3/8" grip length. You can also use the 1/2" grip length pins also.

Hobie Part# 8020371 or 8020370
    CLEVIS PIN 1/4 x 3/8"
    Hobie
    $2.25
    3/16 X 7/8" Clevis Pin

Murrays Part# 22-9806




3/16 x 7/8 Clevis Pin.  H16 gooseneck shackle clevis pin.

Hobie Part# 8020061
    CLEVIS PIN 3/16 X 7/8"
    Misc
    $2.25
    3/16 X 1/2" Clevis Pin

Murrays Part# 22-9801


Stainless steel clevis pin measures 3/16" diameter x 1/2" grip length (shoulder to the split ring hole).

Prindle / Nacra Part# 9412

Compare to Hobie Cat® Part# 8020041
    CLEVIS PIN 3/16 x 1/2"
    Misc
    $2.25
    O-Ring: 6" Screw-In Port

Murrays Part# 001-4210OR



​Replacement “O” ring for 6″ port (hatch) #01-4210. Viking, Sea Dog
    O-RING: 6" SCREW-IN PORT
    MISC
    $2.00
    Spring 1/4" Stainless Steel

Murrays.com Part# 001-0060



1/4" stainless steel spring as used in the Murrays Tiller Connection Kit (#01-2061)

This spring fits on a 1/4 bolt.

Specs: 1/2" Long x 3/8" OD
    Spring 1/4" Stainless Steel 

Murrays Part# 001-0060

1/4" stainless steel spring as used in the Murrays Tiller Connection Kit (#01-2061)
    SPRING 1/4" (SS)
    Murrays Sports
    $2.00
    Black Mast Caution Decal

Murrays Part# 50-13440000


The Decal Mast Caution Black Hobie® factory caution decal attaches to mast as a reminder to watch for overhead power lines when sailing and/or launching your boat.
    BLACK MAST CAUTION DECAL
    Hobie
    $1.99
    Out of Stock
    Decal Mast Caution Orange

Murrays Part# 13440010

Hobie® factory decal attaches to mast as a reminder to watch for overhead power lines when sailing and/or launching your boat.

Hobie Part# 13440010
    ORANGE MAST CAUTION DECAL
    Hobie
    $1.99
    Clevis Pin 3/16 X 5/8"

Murrays Part# 22-9805



Stainless steel clevis pin. Measurement is 3/16" diameter x 5/8" grip length (shoulder to the split ring hole).
Hobie Cat Part number 8020041
    3/16 X 5/8"Clevis Pin

Murrays Part# 22-9805



Stainless steel clevis pin. Measurement is 3/16" diameter x 5/8" grip length (shoulder to the split ring hole).

Compare to Hobie Cat® Part# 8020041
    CLEVIS PIN 3/16 X 5/8"
    Misc
    $1.95
    Bolt Allen Head 5/16 18 X 1.5" (Stainless Steel)

Murrays Part# 19-2229S

Bolt Allen Head 5/16 - 18 X 1.5 (Stainless Steel) - replace hex head bolts used on Hobie 16, 17, 18, 20

Upper adjustable rudder castings.

Limited space for Hex head requires thin walled 1/2" socket with 1/6" drive.

Socket head bolt uses Allen head tool which is cheap, strong, and compact for on board storage and convenient adjustment.
    BOLT 5/16-18 X 1.5" (SS)
    Misc
    $1.75
    Harken 22mm Spring

Murrays Part# 28-0071

Harken universal stand-up spring supports blocks on pad eyes, eyestraps, bases and traveler cars. Weight: .32 oz.
This works well with snap shackle w/tack to upgrade a typical beachcat mainsheet system.
    HARKEN 22MM SPRING
    Harken
    $1.75
    Hobie Part Number 8030361 (304ss)

Bolt Allen Head 5/16 - 18 X 1.25 (Stainless Steel) - replace hex head bolts used on H16, 17, 18, 20
    BOLT SOC HD 5/16-18 X 1.25"
    MISC
    $1.50
    Bolt Hex Head 5/16-18 X 1.5"

Murrays Part# 19-2229




Use this stainless steel, 5/16-18 x 1-1/2" hex head bolt as beam strap bolt for Nacra. Substitute for Nacra Sailing factory item #30358. This bolt is also used to hold the cam stop plate on a Hobie Rudder Upper casting.

Replaces Hobie Cat® Part# 8040301 and Murrays Part# 56-F164
    BOLT HEX HEAD 5/16-18 X 1.5"
    Misc
    $1.50
    Sealed Rivet CCP 6-8 (3/16 X 1/2)
Murrays Part# 19-5033S
Sealed rivets have a sealed end that does not require rivet casings to make them water tight. One and done, no casing needed, just insert and pop as you would a normal rivet, and your hole will be sealed.
Sealed Stainless steel 3/16" x 1/2" rounded pan head rivet. Compare to Hobie Cat® #8011231 Rivet and Hobie Cat® #8011291 rivet casing.
    RIVET CCP SEALED 6-8 (3/16 X 1/2)
    Misc
    $1.40
    Gooseneck Boom Pin

Murrays Part# 50-50502201

Hobie Cat gooseneck boom pin for securing boom assembly to mast at the gooseneck joint.

Hobie Part# 50502201
    HOBIE GOOSENECK BOOM PIN
    Hobie
    $1.39
    Bolt 5/16-18 X 2"

Murrays Part# 50-8040331

Replacement 5/16-18 x 2" bolt is used as a rudder bolt on Hobie® Pre-EZ Lock Rudder System.

Hobie Part# 8040331
    BOLT 5/16-18 X 2"
    Misc
    $1.39
    Bolt 3/8-16 X 2"

Murrays Part# 50-8040501

Replacement stainless steel 3/8-16 x 2" bolt is used on Hobie® 18 front and rear crossbars.

Hobie Part# 8040501
    BOLT 3/8-16 X 2"
    Hobie
    $1.39
    Sealed Stainless Steel 3/16" x 3/8"
Pan Head Rivet
Murrays Part# 19-5032S
Sealed rivets have a sealed end that does not require rivet casings to make them water tight. One and done, no casing needed, just insert and pop as you would a normal rivet, and your hole will be sealed.
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
    RIVET CCP SEALED 6-6 (3/16 X 3/8)
    Misc
    $1.30
    Spring Clip 1/4-5/16"

Murrays Part# 25-2204



Use this 316 stainless spring clip for quick rudder pin removal or on 1/4" to 5/16" pins. This handy little pin is also called a hairpin cotter, bridge pin, hitch pin clip or R clip. Great convenience item for all boats with rudder pins, ie: Hobie 14, 16, 17, 18, 20, Prindle 15, 16, 18, 18-2, 19, 19MX, and Escape.
    Spring Clip: 1/4-5/16

Murrays Part# 25-2204



Use this stainless spring clip for quick rudder pin removal or on 1/4" to 5/16" pins. This handy little pin is also called a hairpin cotter, bridge pin, hitch pin clip or R clip. Great convenience item for all boats with rudder pins, ie: Hobie 14, 16, 17, 18, 20, Prindle 15, 16, 18, 18-2, 19, 19MX, and Escape.
    SPRING CLIP 1/4 - 5/16"
    Ronstan
    $1.25
    RUDDER PIN SPRING CLIP: 3/8

The 3/8 spring clip is a quick release pin for rudder pins on all Hobie, Nacra and Prindle Catamarans. Ideal for sailors who trailer their boats and remove their rudder castings.
    RUDDER PIN SPRING CLIP: 3/8
    Misc
    $1.25
    Bolt Hex Head 1/4-20 X 2.25
Stainless Steel
Murrays Part# 19-2221
Prindle 16/18 and Hobie® rudder bolt. Stainless steel 1/4-20 x 2-1/4" hex head bolt.
    BOLT HEX HEAD 1/4-20 X 2.25" (SS)
    Misc
    $1.25
    Screw RHMS #12-24 X 1.25 Stainless Steel
Murrays Part# 19-3520
Stainless steel, round head #12-24 x 1.25" machine screw is a replacement screw for Hobie® rudder gudgeon.
    SCREW RHMS #12-24 X 1.25 (SS)
    Misc
    $1.10
    H18 Illustrated Part List

Murrays Part# 50-87166810

Hobie® factory publication aids in identifying parts for the Hobie® 18 and 18SX.

The parts list is also available for free download at the Hobie Cat® Web site.
    H-18 ILLUSTRATED PARTS LIST
    Murrays Sports
    $1.00
    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
    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
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