1989 Bayliner 4285 Avanti Sunbridge
Twin Caterpillar 3208 Diesels | AIS & Radar Equipped | Emeryville, CA
Located at Emery Cove Marina with immediate access to San Francisco Bay, this 1989 Bayliner 4285 Avanti Sunbridge offers rare express-style lines combined with true two-stateroom motor yacht accommodations.
Powered by twin Caterpillar 3208 turbocharged diesel engines showing approximately 790 hours, she represents an increasingly hard-to-find opportunity: a 42–45 foot twin-diesel cruiser in the Bay Area under $50,000.
The 4285 Avanti was produced in limited numbers and blends spacious interior volume with distinctive sport cruiser styling. Her layout offers comfortable cruising, liveaboard potential, and strong diesel reliability.
Accommodations & Layout
The bright salon features opposing circular settees with excellent natural light and generous headroom. The galley includes:
Vitrifrigo refrigerator/freezer
Three-burner electric cooktop
Microwave oven
Trash compactor
Pressure hot and cold water
Forward is a guest stateroom with offset queen berth and access to a full head with shower.
The full-beam aft master stateroom offers an island queen berth and private en suite head with separate shower.
The cockpit and sunbridge provide excellent entertaining space, radar arch, full enclosure, wet bar with ice maker, and extended swim platform with easy access to dock.
Electronics & Navigation
This vessel features an integrated navigation package including:
Garmin GPSMAP multifunction display
Furuno First Watch WiFi radar system (radome mounted)
QK-A027-Plus AIS receiver with NMEA 2000 and WiFi bridge
AIS targets viewable on Garmin display and compatible mobile devices
External NMEA 2000 GPS antenna
Dual VHF radios:
Icom IC-M330 DSC VHF
West Marine VHF580 VHF
NMEA 2000 backbone network
NMEA 0183 integration via multiplexer
Fusion marine stereo system with cockpit speakers
Mechanical & Systems
Twin Caterpillar 3208 DITA diesel engines (~790 hours indicated) allow comfortable cruising 18 to 20 knots at 2000 rpm
Twin Disc transmissions
Kohler 12.5kW generator
Fuel manifold tank management system
New engine starter installed
Cabin windows resealed
Interior and exterior courtesy lighting upgraded to LED
Navigation lights upgraded to current U.S. Coast Guard standards (vessel carries compliance sticker)
Bottom cleaned bi-monthly by professional diver (report available)
Cabin heating provided via electric heaters. No air conditioning installed.
Cruise control not operational.
Condition & Notes
This vessel presents as a solid, mechanically straightforward diesel cruiser. Cosmetics reflect normal age and use and are priced accordingly. She offers a strong platform for a buyer seeking diesel reliability and Bay cruising capability in this size range.
Slip is not included; however, the marina may be open to discussing rental with a new owner. Slip dimensions are approximately 45’ on one side and 50’ on the other, with open water access aft.
Seller is motivated and open to reasonable offers.
Buyers are encouraged to perform their own inspections and sea trial as part of the purchase process.
