SLX 400 Outboard

Introducing the SLX 400 OB, "The Entertainer", an outboard variant of the Innovation Award-winning SLX 400, with massive capacity, deluxe amenities, breakthrough design and incredible versatility - for the total freedom to design your own adventure. From the ingenious fold-down swim terrace, to the robust cabin, to the amenity-rich cockpit, the SLX 400 OB is the consummate entertainer and a superior all-around performer - and the epitome of Orchestrated Excellence.

slx400 outboard storage


An expansive cockpit social zone has a well-appointed wet bar with refrigerator, sink and available dual grills while the innovative fold-down swim terrace opens to extend the cockpit all the way to the water

SLX 400 Outboard joystick


Innovations, found throughout, include standard NAUTIC-ON™ Smart Boat System; Joystick Piloting and Dual Digital Dash w/ standard 16” Simrad Touchscreen displays.

SLX 400 Outboard dash
SLX 400 Outboard running bow aerial


Bring your friends... all of them. The SLX 400 Outboard has a generous cabin and expansive bow and cockpit seating. All of this and amenities for entertainment means hours and days of fun aboard this award-winning boat. 


Fathom™ e-power

A first-of-its-kind boat electrification system, Fathom e-Power will replace a generator and includes a Mastervolt® lithium-ion battery pack, consisting of four high-capacity marinized batteries. With intuitive power management, the Fathom e-Power system is capable of powering your boat’s accessory systems for approximately eight hours* without needing recharging from shorepower or your alternators. Using the sophisticated yet easy-to-operate user interface, you can monitor power consumption and charge levels. Fathom e-Power provides a convenient way to enjoy all the features of your boat for a longer, quieter and more eco-friendly day on the water.


* Based on a fully charged system and typical power loads. Battery life will vary based on overall energy consumption. 
The Fathom system is available with 300hp Mercury® Verado® or 450hp Mercury® Racing outboard engine selections.
SLX 400 Outboard dash Fathom Screen

Experience the Power of the SLX-R

A groundbreaking package- the SLX-R features cutting-edge technology paired with high-performance propulsion and the orchestrated excellence of the SLX 400.  Powerful racing engines, combined with elevated design elements will turn heads every time you are on the water. 


Triple Mercury Racing 450R outboard engines

Mercury's Joystick Piloting for Outboards

Shadow metallic gel paint w/red boot stripe

Black painted hardtop

Superior quality upholstery w/contrast stitching

Red accent and underwater lighting

Carbon fiber accents


Powered by NAUTIC-ON™ technology, Sea Ray Connect provides peace of mind by effortlessly conveying a boat’s location and status of vital systems to users via a smartphone app. Boaters will be able to remotely view the condition of their boat’s key components, receive alerts and share diagnostics with service providers should any system require attention.

  • Standard Propulsion
  • Triple 300-hp Mercury® Verados®w/ Joystick Piloting (Tri-300 hp - 224 kW)
  • Fuel Capacity
  • 375 gal / 1,420 L
  • Length
  • 41' 11" / 13 m
  • Beam
  • 12' 1" / 4 m
  • Water Capacity
  • 50 gal / 189 L
  • Capacity
  • Yacht Certified
  • Overnight
  • Yes
  • Weight
  • 18,537 lb / 8,408 kg
SLX 400 Outboard Cockpit floor plan
SLX 400 Outboard Cabin floor plan
  • Draft Outboard Down
  • 45" / 114 cm
  • Draft Outboard Up
  • 32" / 81 cm
  • Deadrise
  • 21°


Sea Ray quality means every outing is more than a simple jaunt; it's an experience to be relished. And Sea Ray care means our award-winning dealer network and industry-leading warranty programs have your back.

Request a Quote

The moments spent daydreaming about getting out on the water have never been closer to reality. Sea Ray craftsmanship ensures your boat will perform for years and years to come. Sea Ray quality means every outing is more than a simple jaunt; it's an experience to be relished. And Sea Ray care means our award-winning dealer network and industry-leading warranty programs have your back. Find out how to make the Sea Ray life a part of yours.


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