
Hull dimensions and equipment for this model.
| Hull Length (engine up) | — |
| Hull Length (engine down) | 40' 0" (12.19 m) |
| Beam Overall | 12' 1" (3.68 m) |
| Draft (engine up) | — |
| Draft (engine down) | — |
| Bridge Clearance to Sport Tower | — |
| Bridge Clearance to Windshield | — |
| Maximum Power | 1500 HP (1119 kW) — quad Mercury Verado |
| Fuel Capacity | 300 gal. (1136 L) |
| Freshwater Capacity | — |
| Holding Tank | — |
Sea Ray's SLX 400 Outboard, "The Entertainer", is 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 Outboard is the consummate entertainer and a superior all-around performer — the epitome of orchestrated excellence.

V12 outboard power, Fathom e-Power, Joystick Piloting, and the Sea Ray+ app. Engineered for the long adventure.
An expansive cockpit social zone has a well-appointed wet bar with refrigerator, sink, and available dual grills. The innovative fold-down swim terrace opens to extend the cockpit all the way to the water, transforming the stern into a wide stage that meets the waterline.

Bring your friends — all of them. The SLX 400 Outboard has a generous cabin and expansive bow and cockpit seating. With amenities for entertainment, hours and days of fun aboard this award-winning boat are guaranteed. The cabin's V-berth with filler cushions converts the forward space into a social gathering area or an overnighting retreat.

Built on 65+ years of marine craftsmanship, the SLX 400 Outboard inherits the NMMA Innovation Award-winning DNA of the SLX 400. SENTIN3L coverage provides a 3-year bow-to-stern factory warranty plus a 10-year Limited Structural Hull and Deck Warranty to the original owner. Premium materials and obsessive attention to detail standard throughout.
Watch the SLX 400 Outboard from bow to stern, with twin Mercury V12 600hp engines, the fold-down swim terrace, and the 16" Simrad helm on full display.
Replaces a generator with a Mastervolt lithium-ion pack of four high-capacity marinized batteries. Powers your accessory systems for ~8 hours without recharging.
Innovative hull design significantly reduces noise and vibration for a smoother, quieter ride. Better fuel efficiency means more time on the water.
Standard 16" Simrad touchscreens with Mercury VesselView Link Data, chartplotting, and depth/fishfinder. Joystick Piloting for precise maneuvering.
Sea Ray+ app keeps you connected to your boat from anywhere. View geofencing, engine data, alerts, plus battery and bilge data when on shorepower.
Talk to a Sea Ray dealer about Mercury V12 600hp configurations, Fathom e-Power, the fold-down swim terrace, and availability in your area.