1991 Custom Robinson Modified Monk Boat in Poulsbo, WA 98370 US
Robinson Modified Monk
1 Engine (Caterpillar)
74 feet
Diesel
Steel
Financing Available
ELIZABETH RUTH
BUILT FOR WORK. REFIT TO SEE THE WORLD
74' Steel Expedition Trawler | Commercial Pedigree | Reported Range Approx. 8,000 NM
Some yachts are designed to look capable. Elizabeth Ruth was built to be capable.
This 74-foot steel expedition trawler combines genuine commercial-vessel heritage with the comfort of a private long-range cruising yacht. Built by Robinson Boatyard to a modified Monk design, she began life as a commercial fish tender before being comprehensively converted for private yacht service in 2008. What was retained is what matters most: full-displacement welded-steel construction, serious machinery, massive tankage, practical deck spaces, and straightforward systems designed for sustained operation far from home.
At her core is a 400-horsepower Caterpillar D343TA with closed water-jacket keel cooling and insulated dry-stack exhaust. Her 15 kW diesel generator is likewise keel-cooled with dry exhaust. With 4,800 gallons of fuel currently online, 6,000 gallons of available tankage reported by the 2024 survey, and a reported range of up to approximately 8,000 NM, Elizabeth Ruth was conceived for passages measured in oceans rather than weekends.
Her private conversion adds the liveability serious cruising demands: upper and lower salons, multiple accommodation areas, two heads with separate showers, full galley, laundry, extensive storage, and a raised pilothouse with watch berth. Webasto hydronic heat and Dickinson diesel heat make her particularly well suited to Alaska and other high-latitude cruising.
The steel hull also benefited from major maintenance during a 2023 haulout, when the underwater body was blasted, recoated with multiple layers of epoxy, finished with antifouling protection, and fitted with new zincs.
For a buyer contemplating Alaska, the Inside Passage, Mexico, Panama, extended Pacific cruising, or long-term liveaboard exploration, Elizabeth Ruth is an increasingly rare proposition: a mechanically straightforward steel passagemaker with authentic commercial DNA and genuine long-range capability. She isn't pretending to be an expedition yacht. She earned the description long before expedition yachts became fashionable.
A comprehensive YachtLens walkthrough, recent onboard owner Q&A, haulout footage, and a 2024 pre-purchase marine survey are available to qualified buyers.
Elizabeth Ruth's arrangement reflects her commercial origins while offering the comfort and separation expected aboard a serious cruising yacht. The raised pilothouse provides commanding visibility, dedicated helm seating, and a day berth for an off-watch crew member during overnight passages.
Below and aft, the main deckhouse incorporates the upper salon, dining area, and galley. Large windows bring in excellent natural light, while extensive cabinetry supports extended cruising. An additional office/berth area adds flexibility for guests or crew.
A lower salon creates a second private living space beside the owner's accommodation. Forward below deck is the master stateroom with centerline berth and built-in storage. Separate guest/crew accommodation provides twin single berths, storage, and a central table. Two enclosed heads each include separate stall showers.
Outside, broad working decks, substantial steel bulwarks, boarding gates, heavy-duty ground tackle, and crane and davit systems provide practical exterior space rarely found aboard recreational yachts of this length.
• 2023 hull maintenance: underwater body blasted to clean steel, multiple epoxy coats, antifouling paint, and new zincs.
• Fresh water: approximately 1,200 gallons.
• Range: reported up to approximately 8,000 NM, dependent on speed, loading, weather, reserves, and operating conditions.
• Upper salon integrates lounge seating, dining, galley, large windows, and abundant storage.
• Separate lower salon provides a quieter retreat beside the master accommodation.
• Hardwood flooring, warm wood joinery, Webasto hydronic heat, and Dickinson diesel heat.
• Norcold refrigerator/freezer plus additional under-counter freezer.
• Dickinson Adriatic diesel stove, Wallas diesel cooktop, microwave, and stainless-steel sink.
• Extensive cabinetry, adjacent dining settee, and nearby washer/dryer.
• Forward owner's accommodation with large centerline berth, built-in cabinetry, and substantial storage.
• Lower salon and enclosed head with separate stall shower nearby.
• Forward space with two single berths, storage, and central table.
• Separate office/berth area provides additional guest or crew flexibility.
• High steel bulwarks, substantial side decks, port/starboard boarding gates, and large working deck.
• 2,000-lb hydraulic knuckle crane, additional davit, hydraulic anchor handling, and Forfjord ground tackle.
• 2013 Klamath aluminum tender with Honda 20 hp four-stroke included.
- Lowering swim platform plus additional upper boat-deck space.
• Raised pilothouse with excellent visibility, dedicated helm seating, and watch berth.
- • Furuno radar/GPS/sounder, Coastal Explorer, Simrad/Robertson AP45 autopilot, Standard Horizon VHF radios, compass, wind and rudder-angle instrumentation, and Hynautic controls.
• 12-volt DC systems, AC shore power, and substantial house battery bank.
• 15 kW diesel generator with closed-loop keel cooling and insulated dry exhaust.
- • Heart Interface Freedom 20 2,500-watt inverter/charger.
• Single 400-hp Caterpillar D343TA six-cylinder marine diesel; just over 6,000 metered hours.
• Twin Disc MG-5114 4.5:1 reduction gear with direct-drive propulsion.
• Closed water-jacket keel cooling and insulated dry-stack exhaust.
• Dual Racor primary filtration, fuel transfer/polishing, central PTO-driven hydraulics, and Gulf Coast bypass oil filtration.
• 4,800 gallons of fuel currently online; 6,000 gallons of available tankage reported by the 2024 survey.
Engine and generator hours are as of the date of the original listing and are a representation of what the listing broker is told by the owner and/or actual reading of the engine hour meters. The broker cannot guarantee the true hours. It is the responsibility of the purchaser and/or his agent to verify engine hours, warranties implied or otherwise and major overhauls as well as all other representations noted on the listing brochure.
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
| Date | Event | Price |
|---|---|---|
| 11/14/26 | Price increased | $620,000(+59.0%) |
| 6/3/25 | Price decreased | $390,000(-30.2%) |
| 2/19/21 | Initial price | $559,000 |
Overview from around the web 1991 Custom Robinson Modified Monk
Customers praise the 1991 Custom Robinson Modified Monk for its exceptional craftsmanship and classic design
Many highlight its sturdy construction and reliable performance, making it a favorite among boating enthusiasts who appreciate both functionality and style. Owners often mention the spacious deck layout, which is ideal for fishing or leisurely cruises, and commend the smooth handling even in challenging conditions. Overall, the feedback reflects a strong appreciation for this boat’s blend of traditional aesthetics with modern modifications, delivering a versatile and enjoyable boating experience.
The Biggest Pros and Cons
The 1991 Custom Robinson Modified Monk offers a distinctive blend of classic design and customized features, making it a unique choice for boating enthusiasts. Here are some pros and cons to consider:
Pros
Custom Modifications: Tailored enhancements improve performance and comfort compared to the standard Monk design.
Classic Aesthetic: Maintains the timeless look of the Monk style, appealing to those who appreciate traditional boat craftsmanship.
Durability: Built with quality materials typical of Robinson boats, ensuring longevity and reliability.
Versatility: Suitable for a range of activities including cruising, fishing, and leisurely day trips.
Handling: Modified design can offer improved maneuverability and stability on the water.
Cons
Age: Being a 1991 model, some components may require maintenance or updating to modern standards.
Availability of Parts: Custom modifications might make sourcing replacement parts more challenging compared to standard models.
Technology: Lacks some of the contemporary electronics and conveniences found in newer boats.
Fuel Efficiency: Older designs may not be as fuel-efficient as modern boats with advanced engine technology.
Resale Market: Custom boats can have a narrower resale market due to specific modifications that may not appeal to all buyers.
Made For
The 1991 Custom Robinson Modified Monk is designed for serious anglers who demand a high-performance, reliable sportfishing vessel. Ideal for those seeking a combination of speed, durability, and advanced fishing capabilities, this boat is perfect for offshore fishing enthusiasts who want to tackle big game in comfort and style. Its custom modifications cater to experienced fishermen looking for superior handling and ample deck space for all their fishing gear.
Finance your dream boat!
Finance your dream boat!
Be the first to know when similar boats hit the market
Get notified when new boats become available
Boats For Sale in Washington, United States Similar to the 1991 Custom Robinson Modified Monk
Compare with similar boats and find the perfect one for you.
1991 Custom Robinson Modified Monk | ||||||
|---|---|---|---|---|---|---|
| Price | $620,000 | $785,000 | $425,000 | $399,000 | $334,500 | $259,000 |
| Location | Poulsbo | Seattle | Anacortes | Anacortes | La Conner | Poulsbo |
| Nominal Length | 74' | 58' | 47' | 40' | 37' | 43' |
| Draft | 7' | - | - | - | - | - |
| Engine Make | Caterpillar | Philbrook's | Caterpillar | Cummins | Cummins | Lugger |
| Total Engine Power | 450 hp | 190 hp | 660 hp | 380 hp | 330 hp | 130 hp |
| Days on Market | 2094 | 0 | 92 | 2 | 70 | 232 |
| Get in touch |
Meet the Broker

Address
Other Information about United Yacht Sales
Our mission is to provide boaters unequaled brokerage and ownership services before, during and after every transaction. We hold ourselves to the highest levels of expertise and professional standards. We have cultivated a standard at United Yacht whereby our client's best interest is at the center of everything we do.
Want to update the details or images for this boat? Claim this listing by getting in touch.
Boat Location
Contact United Yacht Sales about 1991 Custom Robinson Modified Monk
Seattle, WA














































