1999 Mainship 430 Trawler

ID# 4170877

Ask A Question



Yacht Overview

Make: Mainship

Model: 430 Trawler

Year: 1999

Length: 43′

Located In: Stuart, FL

Engine/Fuel Type: diesel

Hull Material: Fiberglass

YW#: 9154458


3/2 Layout 43 Mainship 1999
JoMallie is a very nicely maintained and updated Mainship 430 Trawler located on the east coast of Florida. This is the PERFECT LOOP BOAT! 
The 430 Trawler is a handsome and affordable aft cabin cruiser with very spacious accommodations and a good amount of power. Indeed the 430 is a trawler in appearance, but because of her modified-V planing-hull, she delivers higher speeds than her competitors but just as efficient at cruise. With her wide-beam, this is a very spacious boat inside and out, even with walk-arounds on both sides. 
She has been updated with three 16,000 BTU air conditioners with heat, a newer beverage refrigerator, a new custom 12-volt freezer under the Pilothouse Helm seat, custom Pantry, Stern camera, convection/microwave, Vizio TV in aft cabin, all overhead lighting replaced with LED, fans throughout all the cabins, newer generator engine exhaust and new electrical wiring for the generator. JoMallie has a new 2023 dinghy and 20HP 4-stroke outboard motor as well, the dinghy and outboard motor are negotiable.
The kids after school activities have kept the owner’s from enjoying this beautiful boat, so they have decided to pass her on to someone that will be able to use and enjoy her and the parents will ultimately wait until they become empty nesters! 

Full Specs

Boat Name



LOA: 43
Beam: 15.5 ft
Maximum Draft: 3.67 ft
Displacement: 36,000 lb
Bridge Clearance: 18.5 ft


Engine Brand: Caterpillar
Engine Model: 3116
Engine/Fuel Type: diesel
Engine Power: 350|horsepower
Engine Type: Inboard

Engine Brand: Caterpillar
Engine Model: 3116
Engine/Fuel Type: diesel
Engine Power: 350|horsepower
Engine Type: Inboard


Fresh Water Tanks: 1 (250 Gallon)
Fuel Tanks: 1 (500 Gallon)
Holding Tanks: 1 (100 Gallon)


Number of single berths: 6
Number of cabins: 3
Number of heads: 2

JoMallie has the optional and much preferred three cabin layout with a large Master (with King Berth) in the aft cabin with a Vacuflush En-Suite Head and separate shower. Dedicated JVC Model KD-SX749 Stereo with CD Player and Vizio flat screen television. You may exit the aft cabin to the Transom from the aft cabin as well. 
Up a few steps is the well-appointed Main Salon with table and seating for four on the port side, TCL Roku Smart television while the starboard side has a desk and storage for all the manuals and other materials for the operation of the boat.  There are a couple of chairs on the starboard side aft of the double Helm seat. JoMallie is equipped with a Central Vacuum system with enough hose to vacuum each cabin. The Tramontina portable ice maker conveys as well.
The Salon flows into the port side Galley where you have a 3-burner electric cooktop, newer Greystone convection/microwave oven, new 1.4 cubic foot beverage fridge, Sub Zero refrigerator/freezer, plenty of storage and counter space. Natural light is abundant throughout the Salon and Galley area. 

PLUS, you have wing doors port side in the Galley and starboard side outboard of the Helm/Pilothouse. This is a HUGE feature if your plans take you around the Great Loop! 
A couple of steps down and forward is the hallway to the twin guest cabin on the port side and the VIP cabin directly forward. The VIP cabin has a KOSS Stereo system with CD player. To starboard is the Guest Head (Vacuflush) with separate Shower enclosure.

Access to mechanical equipment and the engine compartment is gained by lifting these steps up. 

JoMallie is well equipped with electronics and safety gear at the Pilothouse helm and on the Flybridge.  There are two Raymarine ES97 multifunction displays (MFD's), one at the inside Helm and one on the Flybridge.  3 years old is the Raymarine Quantum 2 Radar on a custom Mast with grab rail.  The AutoPilot is a Simrad AP20, AIS transceiver and VHF radio.  Bow thruster controls are located at the inside helm and on the Flybridge.   A second VHF is located on the Flybridge.  
At the combo desk/Nav Station you have the monitor for the Magnum Inverter, Balmar Smart Gauges for the Batteries and a Sensatank Marine Tank Monitor. The fire extinguishers are all new and the GlobalFix VF4 Category II EPIRB is mounted above the desk/Nav Station and is about two years old. There is a separate Battery Charger monitored by the Balmar Smart Gauges.
There is a Yamaha Stereo Tuner and Samsung DVD Player that are wired through the Inverter. 

Shore power connections are available at the Bow and Stern, 50 Amp service is the preferred connector with SmartPlug. This is a huge feature for those docking at different marinas as you can go either stern to or bow to and still have plenty of space for shore power.  3 years old are 6 AGM Batteries and 4 six-volt Batteries providing 12-volt service to the boat. Charging of the Batteries is managed by the Magnum Inverter/Charger.
Away from the dock A/C power is provided by the Kohler 8KW generator with about 1,100 hours of run time. The generator has a newer exhaust system and electrical wiring.

Deck and Ground Tackle
A spade Anchor is the primary anchor with a swivel connecting 5/16? chain connected to rode which is secured in the Chain locker and can be accessed from the forward VIP cabin. There is a Simpson Lawrence 12-volt electric Windlass and raw and fresh water wash down connections on the foredeck.

There is a Marquipt Davit Crane (800-lb. capacity) with 3-point lifting cable which ably handles the New 2023 Inmar Rib with 20 HP Suzuki 4-Stroke

The swim platform was rebuilt in 2020 and a telescoping ladder was installed under the platform which can be deployed from the water.

JoMallie moves effortlessly and efficiently with her twin Caterpillar 3116 350 HP diesel engines. All services are up to date! 
  • The port engine was rebuilt in 2017 and the port transmission was replaced in 2017. It is believed the port engine and transmission have approximately 500 hours since the rebuild and replacement. Currently the port engine hour meter shows 1,600 hours. 
  • The starboard engine was rebuilt in 2020 and it is reported to have a little over 100 hours of run time since the rebuild. The starboard engine hour meter currently shows 1,600 hours. The propellers were re-pitched in 2020.

Recent Work
 Shaft repair port,
 Shaft Coupler replaced port,
 New cutlass bearings Port and Starboard,
 New fuel lines Starboard,
 Starboard wiring harness replaced and organized,
 Repaired neutral switch Starboard motor,
 Full engine and generator service (Fluids and Zincs),
 Water heater lines to engine replaced,
 Water heater flushed,
 Bottom Paint, Running Gear painted
 $60K in total recent yard bills for work done in June/July 2023 ($25K in Mechanical updates).
 New DC Freezer,
 New Drink Fridge,
 New Soft Goods in the whole boat
 Forward Head Rebuilt, Raised, and installed new drain Line, Forward Head pump alligator mouths replaced, forward head sink drain was replaced.
 New Macerator pumps forward and rear
 New Bilge pumps in forward
 New Freshwater pump
 Front Isinglass sent off for repair on upper station should have it back later this month.
 New VHF on upper station just installed.