Monark 30

1975 Monark 30 Commercial Workboat

Military-Built Aluminum Hull with Cummins QSL9 450HP Diesel, Raymarine Electronics, SI-TEX Radar, Hydraulic Pot Hauler & Dual-Axle Trailer

Built for the U.S. Navy and transformed into a fully equipped commercial utility vessel, this 1975 Monark 30 combines military-grade durability with modern upgrades—including a Cummins QSL9 450 HP diesel engine (62 hours), Raymarine electronics, SI-TEX radar, and a hydraulic pot hauler. It’s a turnkey platform for crabbing, fishing, or harbor work, and includes a dual-axle galvanized trailer.

HIGHLIGHTS:

• Cummins QSL9 8.9L Turbo Diesel – 450 HP, only 62 hours
• ZF Marine Transmission
• Hydraulic Pot Hauler with Integrated Controls
• Raymarine MFD, Sonar, VHF
• SI-TEX Radar System
• All-Welded Deep-V Aluminum Hull – Ex-military durability
• Heavy Push Knees, Non-Skid Deck, Flush Deck Hatch
• Enclosed Pilothouse with Sliding Side Doors
• Dual-Axle Galvanized Trailer Included

PROPULSION & MECHANICAL:

• Cummins QSL9 450 HP – 6-cylinder turbo diesel, keel-cooled
• ZF marine transmission
• Professional installation, clean bilge
• Wet exhaust system with insulated lines
• Racor fuel filters, dual battery bank, master shut-offs
• 62 total engine hours

ELECTRONICS & NAVIGATION:

• Raymarine Multifunction Display with GPS and sonar
• SI-TEX Radar System
• Raymarine VHF Radio
• Labeled circuit breaker panel at helm
• Radar arch with mounted antenna and running lights

FISHING & DECK EQUIPMENT:

• Hydraulic Pot Hauler – mounted forward on port side
• Integrated controls at helm
• Ideal for commercial crabbing or trap fishing
• Large open working deck with ample tie-down space
• Push knees forward for gear handling or pushing skiffs
• Aluminum non-skid deck, flush hatch access to bilge
• Commercial rub rails and deck hardware

PILOTHOUSE & HELM:

• Fully enclosed with dual sliding doors
• Captain’s seat with 360° visibility
• Clean dash layout and wiring access
• Room for additional seating or storage

TRAILER:

• Triple-Axle galvanized trailer included
• Adjustable bunks and winch post
• Road-ready and solid

VERSATILE & RUGGED:

Perfect for commercial crabbing, research, utility, or sport fishing conversions. Originally U.S. Navy-owned, later university-operated. Clean title and ready for immediate use.

MILITARY ROOTS. COMMERCIAL POWER. FULLY EQUIPPED.
This Monark 30 is a rare find—offering new diesel power, modern electronics, a hydraulic hauler system, and a work-ready deck on a proven aluminum hull. Built to serve and upgraded to perform, it's ready to be put to work or customized further.