• Slide: The Image of 1979 Islander Peterson 40 sailboat anchored in scenic coastal waters with American flag. - 1The Image of 1979 Islander Peterson 40 sailboat anchored in scenic coastal waters with American flag. - 1
  • Slide: The Image of Sailboat Islander Peterson 40 (1979) anchored near rocky coastline under clear blue sky. - 2The Image of Sailboat Islander Peterson 40 (1979) anchored near rocky coastline under clear blue sky. - 2
  • Slide: The Image of Sailboat Islander Peterson 40 (1979) anchored near rocky coastline, calm waters. - 3The Image of Sailboat Islander Peterson 40 (1979) anchored near rocky coastline, calm waters. - 3
  • Slide: The Image of Sailboat Islander Peterson 40 (1979) anchored in a scenic rocky cove. - 4The Image of Sailboat Islander Peterson 40 (1979) anchored in a scenic rocky cove. - 4
  • Slide: The Image of Sailboat Islander Peterson 40 (1979) navigating open sea under clear skies. - 5The Image of Sailboat Islander Peterson 40 (1979) navigating open sea under clear skies. - 5
  • Slide: The Image of 1979 Islander Peterson 40 sailboat docked in a sunny marina. - 6The Image of 1979 Islander Peterson 40 sailboat docked in a sunny marina. - 6
  • Slide: The Image of 1979 Islander Peterson 40 sailboat docked in marina under clear blue sky. - 7The Image of 1979 Islander Peterson 40 sailboat docked in marina under clear blue sky. - 7
  • Slide: The Image of 1979 Islander Peterson 40 sailboat docked at marina under clear blue sky. - 8The Image of 1979 Islander Peterson 40 sailboat docked at marina under clear blue sky. - 8
  • Slide: The Image of 1979 Islander Peterson 40 sailboat docked in a marina under clear blue skies. - 9The Image of 1979 Islander Peterson 40 sailboat docked in a marina under clear blue skies. - 9
  • Slide: The Image of Cockpit of 1979 Islander Peterson 40 sailboat with navigation equipment and steering wheel. - 10The Image of Cockpit of 1979 Islander Peterson 40 sailboat with navigation equipment and steering wheel. - 10
  • Slide: The Image of Cockpit view of 1979 Islander Peterson 40 sailboat with navigation equipment. - 11The Image of Cockpit view of 1979 Islander Peterson 40 sailboat with navigation equipment. - 11
  • Slide: The Image of Cockpit view of 1979 Islander Peterson 40 sailboat docked in a marina. - 12The Image of Cockpit view of 1979 Islander Peterson 40 sailboat docked in a marina. - 12
  • Slide: The Image of B&G navigation system on 1979 Islander Peterson 40 yacht dashboard. - 13The Image of B&G navigation system on 1979 Islander Peterson 40 yacht dashboard. - 13
  • Slide: The Image of Compass on 1979 Islander Peterson 40 sailboat, showing navigation details. - 14The Image of Compass on 1979 Islander Peterson 40 sailboat, showing navigation details. - 14
  • Slide: The Image of Instrument panel on a 1979 Islander Peterson 40 sailboat cockpit. - 15The Image of Instrument panel on a 1979 Islander Peterson 40 sailboat cockpit. - 15
  • Slide: The Image of Control panel of a 1979 Islander Peterson 40 sailboat with gauges and buttons. - 16The Image of Control panel of a 1979 Islander Peterson 40 sailboat with gauges and buttons. - 16
  • Slide: The Image of Control panel of a 1979 Islander Peterson 40 with Trimble Navigation LORAN-GPS 10X. - 17The Image of Control panel of a 1979 Islander Peterson 40 with Trimble Navigation LORAN-GPS 10X. - 17
  • Slide: The Image of Control panel on 1979 Islander Peterson 40 sailboat, featuring various switches and dials. - 18The Image of Control panel on 1979 Islander Peterson 40 sailboat, featuring various switches and dials. - 18
  • Slide: The Image of Cockpit of 1979 Islander Peterson 40 sailboat, featuring covered seating and marina view. - 19The Image of Cockpit of 1979 Islander Peterson 40 sailboat, featuring covered seating and marina view. - 19
  • Slide: The Image of 1979 Islander Peterson 40 sailboat docked in a marina, featuring a covered cockpit and sleek design. - 20The Image of 1979 Islander Peterson 40 sailboat docked in a marina, featuring a covered cockpit and sleek design. - 20
  • Slide: The Image of Four B&G marine instruments on a 1979 Islander Peterson 40 yacht dashboard. - 21The Image of Four B&G marine instruments on a 1979 Islander Peterson 40 yacht dashboard. - 21
  • Slide: The Image of Deck rigging on 1979 Islander Peterson 40 sailboat, featuring ropes and pulleys. - 22The Image of Deck rigging on 1979 Islander Peterson 40 sailboat, featuring ropes and pulleys. - 22
  • Slide: The Image of Deck rigging of a 1979 Islander Peterson 40 sailboat, showcasing ropes and fittings. - 23The Image of Deck rigging of a 1979 Islander Peterson 40 sailboat, showcasing ropes and fittings. - 23
  • Slide: The Image of Winch mechanism on 1979 Islander Peterson 40 sailboat with coiled ropes. - 24The Image of Winch mechanism on 1979 Islander Peterson 40 sailboat with coiled ropes. - 24
  • Slide: The Image of Winch on 1979 Islander Peterson 40 sailboat, docked with other boats in background. - 25The Image of Winch on 1979 Islander Peterson 40 sailboat, docked with other boats in background. - 25
  • Slide: The Image of Close-up of a 1979 Islander Peterson 40 boat component with HI-LO adjustment. - 26The Image of Close-up of a 1979 Islander Peterson 40 boat component with HI-LO adjustment. - 26
  • Slide: The Image of Winch labeled "Spinnaker Halyard" on 1979 Islander Peterson 40 sailboat deck. - 27The Image of Winch labeled "Spinnaker Halyard" on 1979 Islander Peterson 40 sailboat deck. - 27
  • Slide: The Image of Close-up of a winch on a 1979 Islander Peterson 40 sailboat. - 28The Image of Close-up of a winch on a 1979 Islander Peterson 40 sailboat. - 28
  • Slide: The Image of Barient 22 winch on 1979 Islander Peterson 40 sailboat with ropes. - 29The Image of Barient 22 winch on 1979 Islander Peterson 40 sailboat with ropes. - 29
  • Slide: The Image of Close-up of a winch on a 1979 Islander Peterson 40 sailboat deck. - 30The Image of Close-up of a winch on a 1979 Islander Peterson 40 sailboat deck. - 30
  • Slide: The Image of 1979 Islander Peterson 40 sailboat docked among other boats in a marina. - 31The Image of 1979 Islander Peterson 40 sailboat docked among other boats in a marina. - 31
  • Slide: The Image of 1979 Islander Peterson 40 sailboat docked among other boats at a marina. - 32The Image of 1979 Islander Peterson 40 sailboat docked among other boats at a marina. - 32
  • Slide: The Image of Anchor locker of 1979 Islander Peterson 40 sailboat with ropes and lock. - 33The Image of Anchor locker of 1979 Islander Peterson 40 sailboat with ropes and lock. - 33
  • Slide: The Image of Close-up of a weathered Harken winch on a 1979 Islander Peterson 40 sailboat. - 34The Image of Close-up of a weathered Harken winch on a 1979 Islander Peterson 40 sailboat. - 34
  • Slide: The Image of 1979 Islander Peterson 40 sailboat with anchor, docked in marina. - 35The Image of 1979 Islander Peterson 40 sailboat with anchor, docked in marina. - 35
  • Slide: The Image of Red fuel containers in storage compartment of 1979 Islander Peterson 40 sailboat. - 36The Image of Red fuel containers in storage compartment of 1979 Islander Peterson 40 sailboat. - 36
  • Slide: The Image of Interior of 1979 Islander Peterson 40 sailboat with wood paneling and cozy seating. - 37The Image of Interior of 1979 Islander Peterson 40 sailboat with wood paneling and cozy seating. - 37
  • Slide: The Image of Interior of 1979 Islander Peterson 40 sailboat with wood paneling and cozy seating. - 38The Image of Interior of 1979 Islander Peterson 40 sailboat with wood paneling and cozy seating. - 38
  • Slide: The Image of Interior of 1979 Islander Peterson 40 sailboat with wooden cabinetry and compact kitchen area. - 39The Image of Interior of 1979 Islander Peterson 40 sailboat with wooden cabinetry and compact kitchen area. - 39
  • Slide: The Image of Interior of 1979 Islander Peterson 40 sailboat with wooden paneling and window curtain. - 40The Image of Interior of 1979 Islander Peterson 40 sailboat with wooden paneling and window curtain. - 40
  • Slide: The Image of Wooden interior of 1979 Islander Peterson 40 sailboat with sink and stove. - 41The Image of Wooden interior of 1979 Islander Peterson 40 sailboat with sink and stove. - 41
  • Slide: The Image of Interior of 1979 Islander Peterson 40 sailboat with cozy seating and navigation station. - 42The Image of Interior of 1979 Islander Peterson 40 sailboat with cozy seating and navigation station. - 42
  • Slide: The Image of Interior of 1979 Islander Peterson 40 sailboat with navigation station and cozy sleeping area. - 43The Image of Interior of 1979 Islander Peterson 40 sailboat with navigation station and cozy sleeping area. - 43
  • Slide: The Image of Interior of 1979 Islander Peterson 40 sailboat with books, electronics, and storage area. - 44The Image of Interior of 1979 Islander Peterson 40 sailboat with books, electronics, and storage area. - 44
  • Slide: The Image of Interior of 1979 Islander Peterson 40 sailboat, featuring a wooden galley with stove and storage. - 45The Image of Interior of 1979 Islander Peterson 40 sailboat, featuring a wooden galley with stove and storage. - 45
  • Slide: The Image of Interior of 1979 Islander Peterson 40 sailboat with wood finish, kitchenette, and seating area. - 46The Image of Interior of 1979 Islander Peterson 40 sailboat with wood finish, kitchenette, and seating area. - 46
  • Slide: The Image of Interior compartment of a 1979 Islander Peterson 40 sailboat, featuring storage space. - 47The Image of Interior compartment of a 1979 Islander Peterson 40 sailboat, featuring storage space. - 47
  • Slide: The Image of Storage compartment with assorted liquor bottles on a 1979 Islander Peterson 40 yacht. - 48The Image of Storage compartment with assorted liquor bottles on a 1979 Islander Peterson 40 yacht. - 48
  • Slide: The Image of Interior of 1979 Islander Peterson 40 sailboat with wooden cabinets and vintage lamp. - 49The Image of Interior of 1979 Islander Peterson 40 sailboat with wooden cabinets and vintage lamp. - 49
  • Slide: The Image of Interior view of 1979 Islander Peterson 40 sailboat, featuring wooden flooring and mast detail. - 50The Image of Interior view of 1979 Islander Peterson 40 sailboat, featuring wooden flooring and mast detail. - 50
  • Slide: The Image of 1979 Islander Peterson 40 yacht bathroom with wooden cabinets, sink, and toilet. - 51The Image of 1979 Islander Peterson 40 yacht bathroom with wooden cabinets, sink, and toilet. - 51
  • Slide: The Image of 1979 Islander Peterson 40 yacht interior with wooden cabinets and mirror. - 52The Image of 1979 Islander Peterson 40 yacht interior with wooden cabinets and mirror. - 52
  • Slide: The Image of 1979 Islander Peterson 40 yacht bathroom with wooden floor grate and marine toilet. - 53The Image of 1979 Islander Peterson 40 yacht bathroom with wooden floor grate and marine toilet. - 53
  • Slide: The Image of Interior cabin of 1979 Islander Peterson 40 sailboat, featuring wooden accents and cozy sleeping area. - 54The Image of Interior cabin of 1979 Islander Peterson 40 sailboat, featuring wooden accents and cozy sleeping area. - 54
  • Slide: The Image of Interior of 1979 Islander Peterson 40 sailboat with wooden cabinetry and small window. - 55The Image of Interior of 1979 Islander Peterson 40 sailboat with wooden cabinetry and small window. - 55
  • Slide: The Image of Interior cabin of 1979 Islander Peterson 40 sailboat with wooden storage and bed. - 56The Image of Interior cabin of 1979 Islander Peterson 40 sailboat with wooden storage and bed. - 56
  • Slide: The Image of Engine compartment of a 1979 Islander Peterson 40 sailboat with bright orange components. - 57The Image of Engine compartment of a 1979 Islander Peterson 40 sailboat with bright orange components. - 57
  • Slide: The Image of Engine compartment of a 1979 Islander Peterson 40 sailboat, featuring a bright red engine. - 58The Image of Engine compartment of a 1979 Islander Peterson 40 sailboat, featuring a bright red engine. - 58
  • Slide: The Image of Electrical control panel on 1979 Islander Peterson 40 sailboat, featuring switches and gauges. - 59The Image of Electrical control panel on 1979 Islander Peterson 40 sailboat, featuring switches and gauges. - 59
  • Slide: The Image of Balmar Smartgauge displaying battery status on 1979 Islander Peterson 40 yacht. - 60The Image of Balmar Smartgauge displaying battery status on 1979 Islander Peterson 40 yacht. - 60
  • Slide: The Image of Radio and binoculars on 1979 Islander Peterson 40 yacht's wooden interior. - 61The Image of Radio and binoculars on 1979 Islander Peterson 40 yacht's wooden interior. - 61
  • Slide: The Image of Control panel on 1979 Islander Peterson 40 sailboat, featuring ProMariner display and ACR indicator. - 62The Image of Control panel on 1979 Islander Peterson 40 sailboat, featuring ProMariner display and ACR indicator. - 62
  • Slide: The Image of Interior view of 1979 Islander Peterson 40 sailboat, showcasing wooden flooring and structural components. - 63The Image of Interior view of 1979 Islander Peterson 40 sailboat, showcasing wooden flooring and structural components. - 63
  • Slide: The Image of Bilge compartment of 1979 Islander Peterson 40 sailboat with visible hose and wood flooring. - 64The Image of Bilge compartment of 1979 Islander Peterson 40 sailboat with visible hose and wood flooring. - 64
  • Slide: The Image of Interior view of 1979 Islander Peterson 40 sailboat showing wiring and wooden flooring. - 65The Image of Interior view of 1979 Islander Peterson 40 sailboat showing wiring and wooden flooring. - 65
  • Slide: The Image of Interior view of 1979 Islander Peterson 40 sailboat with wooden flooring and open hatch. - 66The Image of Interior view of 1979 Islander Peterson 40 sailboat with wooden flooring and open hatch. - 66
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1979 Islander Peterson 40

$34,999

Used

Boat in Ventura, CA 93001 US

builtBuilt in 1979
Year the boat was built
model

Peterson 40

Boat model
engine

1 Engine (Pathfinder)

Engine type and count
length

40 feet

Overall boat length
fuel

Diesel

Fuel type
material

Fiberglass/Reinforced

Hull material

The 1979 Peterson Islander 40 is a timeless performance cruiser that blends classic lines with proven offshore capability. Designed by the renowned Doug Peterson, this vessel reflects an era when sailboats were built with both speed and seaworthiness in mind, making it equally at home on coastal passages or extended blue water adventures.

This particular example has been lovingly maintained by attentive owners who clearly understood the value of proper stewardship. Their extensive list of upgrades and recent work illustrates their love and care for Syren. The hull and deck present well, with ongoing care evident in the condition of the gelcoat, and hardware. Rigging and sail inventory have been thoughtfully managed, ensuring dependable performance whether you're cruising under a relaxed sail plan or pushing her to weather.

Below deck, the interior is warm, functional, and inviting. Solid teak joinery, classic lines, and a practical layout create a space that feels both secure at sea and comfortable at anchor. The galley is well-equipped for extended cruising, while the navigation station remains true to its roots-simple, efficient, and ready for passage planning. Sleeping accommodations are generous, making it easy to host crew or family.

Mechanically, she reflects consistent upkeep, and was rebuilt in offering reliability and peace of mind. Systems have been maintained with an eye toward longevity and usability, striking a balance between originality and sensible upgrades.

Syren is not just a boat-it's an opportunity. She's ready to carry new owners on coastal explorations, island hopping, or offshore passages with confidence. For those seeking a classic, well-cared-for cruiser with pedigree and soul, she stands ready for her next chapter.










Nominal Length
40ft
Length Overall
39.58ft
Length at Waterline
30ft
Beam
11.75ft
Max Draft
7.17ft
Drive Up Draft
7.17ft
Displacement
17000lb
Ballast
7700lb
Cabins
1
Heads
1
Fresh Water Tanks
60gal
Fuel Tanks
35gal
Windlass
electric-windlass
Hull Material
fiberglass
Hull Shape
displacement
Engine 1
Engine Make
Pathfinder
Engine Model
50MF
Total Power
42hp
Engine Hours
1444
Engine Type
inboard
Fuel Type
diesel
Engine Year
1979
Drive Type
direct
Propeller Type
3-blade
Propeller Material
bronze
Electronics & Instrumentation
  • MNew Standard Horizon VHF
  • NEMA 2000 Network
  • B&G 16' Zeus 4 Multi Function Display
  • 4X B&G Triton Instrument DIsplays
  • B&G Autopilot computer
  • Raytheon Type 2S Autopilot Ram
  • AIS
  • Forward Scan Sonar
  • Fusion AV75 Stereo
  • JL Audio Marine Amplifier
  • Klipsch Outdoor speakers in Cabin
  • JL Audio speakers in cockpit
  • Ultrasonic Wind Sensor and barometric pressure
  • LED Navigation Lights
  • Radar Reflector
Deck Equipment
  • Rocna 20 Anchor
  • Maxwell Windlass
  • Removable Anchor Roller
  • Fortress secondary anchor with new chain and rode 
  • LED Anchor Light
  • New adjustable cleat tracks 
  • Stainless steel cleats
  • New Lifeline netting
  • Lifesling
  • Horseshoe Buoy
  • MOB Strobe lights
  • MOB Pole
  • Winslow Liferaft with EPIRB
Sails
  • North Sails Main 
  • North Sails Tri-Radial Genoa
  • Roller Furling Genoa
  • Spinnaker- 3/4 oz
  • Spinnaker 1.5 oz
  • Spinnaker Pole
  • All rigging for Spinnakers
Accomodations

A private forward V-berth, a roomy main salon with settee berths, an aft quarter berth, a functional galley with a 3-burner stove/oven, and an enclosed head with a shower. Well kept original interior cushion cloth lends itself to the feeling of being transported in time. Well kept original interior cushion cloth lends itself to the feeling of being transported in time. 

The sole and woodwork are in excellent condition with notable upgrades as well including:

  • Webasto Forced Air heater
  • LED Interior Lighting
Engine Rebuild

February 2025 Engine Rebuild

  • Factory refurbished top end (cams, valves)
  • Cleaned and refurbished Heat Exchanger
  • All new Coolant pump, hoses and fittings.



Disclaimer

The Company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change, or withdrawal without notice.

Price History

DateEventPrice
4/19/26Initial price$34,999

Contact Seacoast Yachts- Channel Islands

2950 S. Harbor Blvd, Oxnard, CA, 93035

By checking this box, I consent to receive recurring marketing text messages, phone calls, and emails from Seacoast Yachts- Channel Islands at the number and email provided, including messages sent using an autodialer or prerecorded voice. Message frequency varies. Message and data rates may apply. Reply STOP to opt out or HELP for assistance. Consent is not a condition of purchase. We'll also send helpful email updates about your boat search. You can unsubscribe whenever you like. See Terms of Use and Privacy Policy.

Finance your dream boat!

Use our boat payment calculator to estimate monthly payments for 1979 Islander Peterson 40. Enter your down payment, choose a loan term, and adjust the interest rate to see an instant payment estimate — ideal if you're calculating boat payments before you enquire. Wondering how much does a Sail Cruiser cost in today's market, or how much does a Islander cost for similar models? This boat financing calculator helps you compare scenarios in seconds, whether you're considering used boat financing or a new purchase.
Monthly payment
$221.63/mo
$
$
%
Principal Loan Amount$ 29,749
Total Payment$53,190.11

Finance your dream boat!

Use our boat payment calculator to estimate monthly payments for 1979 Islander Peterson 40. Enter your down payment, choose a loan term, and adjust the interest rate to see an instant payment estimate — ideal if you're calculating boat payments before you enquire. Wondering how much does a Sail Cruiser cost in today's market, or how much does a Islander cost for similar models? This boat financing calculator helps you compare scenarios in seconds, whether you're considering used boat financing or a new purchase.
Monthly payment
$221.63/mo
$
$
%
Principal Loan Amount$ 29,749
Total Payment$53,190.11

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Contact Seacoast Yachts- Channel Islands about 1979 Islander Peterson 40

2950 S. Harbor Blvd, Oxnard, CA, 93035

By checking this box, I consent to receive recurring marketing text messages, phone calls, and emails from Seacoast Yachts- Channel Islands at the number and email provided, including messages sent using an autodialer or prerecorded voice. Message frequency varies. Message and data rates may apply. Reply STOP to opt out or HELP for assistance. Consent is not a condition of purchase. We'll also send helpful email updates about your boat search. You can unsubscribe whenever you like. See Terms of Use and Privacy Policy.

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