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 naturally aspirated 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 diesel engines (~790 hours indicated)

• 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.