Bayliner 4085 Avanti

O Twin MerCruiser V8 8.2L MPI inboards via ZF gearboxes + shafts - cruises comfortably at 10-12 knots and will run 30+ knots when needed
o Kohler 3.5kVA genset - reliable 240V power on demand for extended stays onboard.
o Twin seat helm with full electronics.
o Large cockpit for entertaining with wet bar, ice maker and dining table seating up to 6.
o Air-conditioned saloon with approx 2m headroom and lounge seating.
o Twin-queen cabin layout: forward island queen (with ensuite access), aft transverse queen with privacy screen (comfortably sleeps 4).
o Tankage for real cruising: 2 × 700L fuel + 600L total water.
o Out-of-water Feb 2026: new antifoul, anodes, propspeed, clears, and shipwright inspection completed for Club Marine insurance.

A length of 12.8m and beam of over 4m makes the Bayliner Avanti 4085 one of the largest volume boats in its class. KellieBrook is a very capable, functional and comfortable cruiser offering great value for couples/families seeking to entertain or spend days and nights on the water.
Slipped February 2026 with new Antifouling, Anode's, propspeed, clears and Shipwright Inspection for Club Marine Insurance. Nothing to do but enjoy
Step off the dock onto a large integrated fibreglass swim platform.
Walking through the transom door opens into into a spacious cockpit fitted with marine carpet. The cockpit has a raised helm, with seating for two on an electrically adjustable seat and all the electronics required to cruise in comfort including navigation, auto pilot, depth monitors, remote anchor controls, UHF radio, stereo controls and gauges to monitor the engines. To port there is a large lounge, and the rear of the cockpit contains a wet bar, ice maker and a dining table that seats up to 6 persons.
Access to the below deck area is via wide sliding door that leads into a huge airconditioned Saloon with 2m of head room. To port there is a large U-shaped lounge with a second lounge slightly aft to Starboard. The Starboard side galley has solid bench tops, ample storage, three element cooktop, air fryer and a large upright fridge/freezer allowing enough space for provisions to spend days onboard.

She has a twin queen cabin layout with a master island style berth in the bow (with ensuite access) and a queen size transverse aft berth with a privacy screen allowing comfortable accommodation for at least 4 persons.
The head has a sliding shower screen and electric toilet paired with a vanity and ample storage.
LED lighting throughout offers great lighting while maximising the battery life. There are 12v TV's in both cabins, galley and cockpit.

Powered by two V8 8.2L Mercruisers with approximately 650 hours drive through ZF gear boxes and shafts to cruise economically at 10-12 knots or easily reach speeds exceeding 30 knots. A Kohler 3.5kva genset provides ample 240v power on demand.
With 2 x 700L fuel tanks and 2 x water tanks with a combined 600L allow for extended cruising.
Currently berthed at Westernport Marina, Hastings and ready for inspection by appointment.