2020 Sea Ray SLX 310 OB

ID# 4084136

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Yacht Overview

Make: Sea Ray

Model: SLX 310 OB

Year: 2020

Length: 31.6′

Located In: Tampa, FL

Engine/Fuel Type: unleaded

Hull Material: Fiberglass

YW#: 8853360


New to the Market! 2020 Sea Ray 310SLX Outboard-$299,995.00

All Services Completed 3/2023

Fully Detailed & Ready for Immediate Delivery

Sea Ray Blue Hull Side Color 

Hull Side Colored Hull 

Marine Midnight Blue Canvas 

Flooring Color – Brown 

Cockpit Color – Dune 


Hardtop – Opening Canvas & Extended Sunshade

Blue Thru Hull Under Water Lights

Blue LED Lighting Package 

Premier Stereo Upgrade 

Sirius Satellite Radio 

Refrigerator, 12V 

Shore Power Pkg w/Converter & Cord 

Side Entry Step 

Flag Pole & Base, US Flag 

Fender Clips 

Windlass, Rope/Chain w/Galvanized Anchor 

Stainless Steel Anchor 

Dynamic Running Surface 

Mooring Cover (Black only) 

Simrad Select Response 12″ Dual Display 

Spotlight, 5″ Remote Controlled 

VHF Radio w/Antenna 

Flooring, Snap in carpet 

Bow Filler Cushion 

Canvas Pkg for Fiberglass Hardtop 

Docking Lights

Contact Broker Direct-Patrick Roark 813-909-5064 Patrick.Roark@MarineMax.com

Boat is offsite & Avialbale for Scheduled Showings

Full Specs


LOA: 31.6
Beam: 10.2 ft
Maximum Draft: 2.67 ft


Engine Model: 300
Engine/Fuel Type: unleaded
Engine Power: 300|horsepower
Engine Type: Outboard

Engine Model: 300
Engine/Fuel Type: unleaded
Engine Power: 300|horsepower
Engine Type: Outboard


Fresh Water Tanks: 1 (24 Gallon)
Fuel Tanks: 1 (158 Gallon)


Additional Equipment

The Sea Ray SLX 310 Outboard is designed for comfort and socializing. Equipped with a mixture of luxury and technology, this is a vessel that handles smoothly and predictably but can also host a daylong party.

Major Features

Enclosed head

Full-beam swim platform

Standard Power Tower with articulating Bimini system

Quiet Ride technology transforms vibration into heat and significantly reduces noise

Dynamic Running Surface automatically adjusts to optimize performance.

Active Trim system automatically adjusts engine trim.


There are two design elements that stand out on the SLX 310: Quiet Ride and the Dynamic Running Surface (DRS).

Sea Ray’s sound-reducing Quiet Ride technology, which consists of acoustic insulation, vibration-dampening materials and design choices to deaden sound and minimize vibration. We won’t get into the fine details here, but during the construction process Sea Ray especially tunes the transom to reduce vibration and noise, installs acoustic insulation in the hull, and uses special laminates in the hull, deck and liner that converts energy to heat to reduce vibration.

Noise reduction tests show that vessels with this technology are reported to be 6 to 12 decibels quieter while underway as compared to other boats. You can compare our sound readings of this boat to others to see for yourself.


The Sea Ray SLX 310 Outboard is powered by twin 300 horsepower Mercury Verado four-stroke outboards. All choices have optional joystick piloting and are offered in black or white. The Mercury outboards come with a suite of digital technologies to make boating easier. These include the SmartCraft Digital Throttle and Switch system, which provides smooth shifting and quick throttle response; and the GPS-based Active Trim system, which automatically adjusts engine trim while underway.

Vessels with the optional Joystick Piloting for Outboards (JPO) will also be equipped with Mercury’s Skyhook digital anchor system, which has various features including Heading Adjust, which allows the driver to adjust the heading in one and ten degree increments; BowHook, which maintains the boat’s position while allowing the vessel to point in any direction, and DriftHook, where the vessel will maintain heading but will drift with the wind and current.


WOT Speed. We took our test boat out in relatively smooth conditions with the standard twin 300 horsepower, four-stroke Mercury Verado outboards, we found that our test boat reached a top speed of 51.3 miles per hour at 5500 rpm. At that speed, we were burning 46.5 gallons per hour for a range of 135 miles.

Best Cruise. We found that the best economic cruise came in at 4000 rpm at 35.8 mph, which brought the fuel burn down to 21.5 gallons per hour and the range up to 237 miles. The SLX 310 Outboard was quick to respond to the throttle, coming up on plane at 4.8 seconds and cruising through 20 miles per hour in 17 seconds.


We found that the SLX 310 Outboard was quick to respond to the throttle and offered a solid and smooth ride. At cruising speeds, the boat was comfortable and predictable, and the high freeboard kept passengers relatively dry. The optional joystick makes precise piloting docking a breeze at slow speeds.

Features Inspection. The SLX 310 Outboard has a length overall of 31’6” (9.60 m), a beam of 10’2” (3.10 m), and an approximate dry weight of 10,335 lbs. (4,688 kg). 


Sea Ray built the SLX 310 Outboard with a full-beam swim platform, and positioned the outboards so that it’s possible to walk on the platform behind them to reach either side of the vessel. 4’ (1.22 m) extensions on either side of the outboards extend the length of the platform, a feature that keeps swimmers away from the props and offers more room to perform engine checks and maintenance.To port is a folding swim step built into the swim platform that eases entry and exit into the water and there is a second re-boarding ladder to starboard with a grab handle. The transom sun pad, which lifts up by grabbing the rail underneath the pad, a storage compartment underneath and it has two panels built into the seat that raise up to convert the sun pad into aft-facing seats. Built into the starboard armrest is a remote for the radio as well as a 12-volt charging station with cup holders on both sides. 


From the swim platform, move forward through the walkway and step down to access the cockpit. The SLX 310 Outboard has plenty of space for a large group; the L-shaped seating wraps up from the stern to the portside, and the seats have adjacent cup holders and grab rails. A corner seat is positioned forward of the wet bar, which is equipped with a freshwater sink and can be fitted with an optional grill and refrigerator. Storage is accessed via side panels and underneath all of the seats.

From the cockpit, the operator can lift up the sun pad via hydraulics to access the engine steering pump, engine start battery, house batteries, and engine start battery.

Power Tower

The SLX 310 Outboard comes standard with an aluminum power tower equipped with an electrically actuated canvas sureshade and a tow point for water sports. This can be upgraded to a fiberglass hardtop, which has a manually operated center section that can be opened to let the sun in. The hardtop also has an electrically powered shade that can shade the aft end of the boat. The control switches to actuate the tower are located in the starboard hull, within easy reach of the rear cockpit bench seat.


The helm is placed to starboard and forward of the wet bar. Our test boat had the standard dual 9” (.23 m) Simrad displays, which can be upgraded to 12” (.30 m) screens. The SLX 310 Outboard comes standard with NAVIOP Digital Switching and Mercury VesselView Link, in addition to a Chartplotter, transducer, and fishfinder. There are no gauges to look at since the vessel is outfitted with Mercury Digital Suite. Below the dash and to the left of the wheel are the controls for the Fusion Apollo stereo, push button switches, and the digital start ignition. To starboard, on the armrest, are the manual tabs for the optional Dynamic Running Surface, throttle controls, Smart Craft Digital Throttle and Shift tabs, and the joystick.

Helm Seating

The doublewide helm seat features more premium vinyl with contrast stitching as well as independent bolsters. Built into the base of the seat is a storage compartment, and there is an angled footrest with grip material built into the floor. The passenger helm seat is opposite the main helm. It swivels to face forward and aft. Forward of the passenger helm is a console with a locking glove box, a 12-volt charging station, cup holders and rubberized materials to keep lose objects in place. There is also a storage compartment easily accessed by lifting a panel. In the floor between the two helm seats is a large in-floor storage locker, which comes with a sliding drawer for more storage.