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2005 Post 53′ Convertible is powered by reliable CAT C18 Diesels (Total Power: 2030 HP Cruising Speed: 28 knots). The Mariannette is a very nice 3 Stateroom and 2 Full Head 53′ Post with a Spectacular High-Gloss Teak Interior. She also has a dinghy, electric davit, watermaker and many extra factory options! This turn key post is perfect for anyone looking to run offshore or for a great extended getaway. Powered with the very reliable and preferred CAT C18 Diesel Engines with only 1400 hours.


The three stateroom, two head layout is fairly standard for a convertible this size with a midships owner’s cabin and the galley forward in the salon, opposite the dinette.  Under counter refrigeration maximizes counter space in the galley. Lacquered teak joinery is used throughout the interior. Th e cockpit, which measures more than 12 feet in length, is fitted with tackle storage, bait freezer, two fish boxes, transom live well and direct access to the spacious and well engineered engine room. The flybridge is huge with plenty of guest seating, rod storage beneath the console, an d single lever controls.


Beautiful living area with luxurious leather sofa, entertainment center, home theater and AV system.  The dinette easily accommodates six with custom teak table with storage under seating. There is a full screen TV mounted on the dinette bulkhead. The galley features two pullout Subzero refrigerator/freezers, three burner stove, Sharp  microwave/convection oven, trash compactor and coffee maker. There is new carpeting throughout, new Hunter Douglas blinds, U-line icemaker and satellite TV system.

Master stateroom and head

Located amidships to port this spacious and comfortable master stateroom features a queen berth with storage, Amtico flooring, large TV and overhead hatch which provides light and ventilation. There is a private head with shower.

Forward guest stateroom and head

This cabin features crisscross berths, television, hanging locker, ample door and drawer storage and a large deck access hatch which provides light and ventilation. Aft to starboard is access to the semi private head with stall shower.

Starboard guest stateroom and head

Highlights include upper and lower berths, hanging locker, custom storage beneath the lower berth, drawer storage and an overhead hatch. Access immediately forward to the semi private head and shall shower.


LOA: 52 ft 10 in

Beam: 16 ft 11 in

Maximum Draft: 5 ft 0 in

Displacement: 59000 lbs


Total Power: 2030 HP

Engine 1:

Engine Brand: Caterpillar

Year Built: 2005

Engine Model: C-18

Engine Type: Inboard

Engine/Fuel Type: Diesel

Location: Starboard

Engine Hours: 1400

Engine Power: 1015 HP

Engine 2:

Engine Brand: Caterpillar

Year Built: 2005

Engine Model: C-18

Engine Type: Inboard

Engine/Fuel Type: Diesel

Location: Port

Engine Hours: 1400

Engine Power: 1015 HP


Fresh Water Tanks: (240 Gallons)

Fuel Tanks: (926 Gallons)

Holding Tanks: (80 Gallons)


Number of heads: 2

Outside Equipment/Extras

Electric windlass


  • Ultra-Leather Large L-Lounge Sofa with Storage

  • Carpet

  • Canvas Runner

  • Teak Table

  • Hi-Gloss Teak Interior

  • Silhouette Blinds

  • Overhead Recess Lighting

  • Barrel Chair

  • Storage

  • Large Flat Screen TV

  • Bose Surround Sound

  • Stereo with DVD

  • Heat and Air Conditioning


  • Large U-Shaped Ultra Leather Lounge

  • Large Hi-Gloss Teak Dinette


  • Corian Tops

  • 3 Refrigerators and 2 Freezer

  • Burner Stove Top

  • Sink & Faucet

  • In-Counter Trash

  • Hi Gloss Teak & Holly

  • Convection Microwave Oven

  • Storage Throughout

  • Pull Out Drawer Storage Pantry Style

  • Bose System

  • Salon Door Dampner

Master Stateroom

  • Private Head

  • TV & DVD

  • Overhead Lights

  • Large Berth

  • Drawers mounted in Bulkhead for ease of use

  • Cedar Lined Hanging Locker Closet

  • Air Conditioning and Heat

  • Storage Throughout

Master Head

  • Overhead Hatch with recessed shade and screen

  • Enclosed Shower

  • Hi-Gloss Teak and Holly

  • Overhead Lighting

  • Upper and Lower Vanity with Storage

  • Sink and Faucet

  • Shower Locker

  • Freshwater Head


  • Large Berth

  • Overhead Hatch with Recess Screen and Shade

  • Upper Storage

  • 2x Large Cedar Lined Hanging Closets

  • TV

  • Private Access to Head

  • Air Conditioning and Heat Controls

  • Overhead Lights

  • Carpeting

  • High Gloss Teak

  • Drawers in Bunk

  • Reading Lights


  • Washer/Dryer Combo

Guest Stateroom

  • Upper and Lower Bunks

  • Cedar Lined Hanging Lockers

  • Overhead Lights

  • Reading Lights

  • Drawers Under Bunk

  • Carpeting

Guest Head

  • Upper and Lower Vanity

  • Enclosed Shower

  • Teak and Holly Flooring

  • Sink and Faucet

  • Freshwater Head

  • 2x Cedar lined Closets

  • Overhead Hatch with built in screens and shades

  • Full Vanity

Flybridge and Electronics


  • Contols

  • Full Enclosure With Vents

  • Overhead Lights

  • Large Seating Forward – Port Bench and L-Lounge with Storage

  • Refrigerator

  • Forward Seating

  • Teak Ladder Back Helm Chairs

  • Aft Rocket Launcher

  • Canvas Cover for Helm


  • Autopilot

  • VHF

  • SSB

  • Windlass Remote

  • Bow Thruster

  • CAT Electronic Displays


  • 2x Large Fishboxes

  • Tackle Storage

  • Engine Room Access

  • Step Drink Box

  • Cockpit Freezer

  • Transom Livewell

  • Cockpit Sink

  • Shore Power With Cable master

  • Washdowns

  • Camera

  • Spreader Lights

  • Rod Holders

  • Teak Fighting Chair

  • Cockpit Winter Cover


  • Outriggers

  • Windlass

  • Bow Rails

  • Life Raft

  • Dinghy with

  • Electric dinghy davit

  • Bow pulpit

  • Gelcoat

Engine Room and Mechanicals

  • C18 CATS 1400

  • Onan Generator 23kw w/Enclosed Soundshield

  • Onan Generator 13kw w/Enclosed Soundshield

  • Drawers

  • Reverso Oil Change

  • Engine Room Fans

  • Battery Switches

  • Dual Racors

  • Overhead Lights

  • Finished Overhead

  • Halon Fire System

  • Emergency By-Valves

  • Fuel Transfer Pump

  • Dripless Shaft Seals

  • Awlgrip Engine Room

  • Sea Strainers

  • Water maker

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