2021 Sea Ray SLX 310

$229,438

Used

Boat in Clearwater 33756 US

builtBuilt in 2021
Year the boat was built
model

SLX 310

Boat model
engine

2 Engines (2x MERCRUISER)

Engine type and count
length

31 feet

Overall boat length
fuel

Gas

Fuel type
material

Fiberglass/Reinforced

Hull material
Nominal Length
31ft
Length Overall
31ft
Hull Material
fiberglass
Hull Shape
other
Engine 1
Engine Make
MERCRUISER
Engine Model
ECT 6.2L MPI AX BR3
Total Power
300hp
Engine Hours
209
Fuel Type
gasoline
Engine 2
Engine Make
MERCRUISER
Engine Model
ECT 6.2L MPI AX BR3
Total Power
300hp
Engine Hours
209
Fuel Type
gasoline

Price History

DateEventPrice
5/22/26Initial price$229,438

Videos from MarineMax Somers Point on this 2021 Sea Ray SLX 310

Contact MarineMax Somers Point

Clearwater, Florida, 33756

Boattest.com Review

Overview

The Sea Ray 310 SLX represents a new generation within the SLX line, emphasizing luxury, comfort, and a wealth of amenities. This model builds upon the brand's reputation by integrating numerous refined details that collectively elevate the boating experience. From its striking exterior finish to its thoughtfully designed features, the 310 SLX is positioned as a premium-level craft that appeals to discerning boaters seeking both style and substance.

Exterior Design and Deck Layout

The 310 SLX features molded contour lines complemented by a gel coat finish with a mirror-like sheen, enhancing its visual appeal even before launch. The bow area offers wraparound seating for six, including double-wide forward-facing seats with flip-down armrests and ample storage beneath all seating surfaces. A pedestal table can be installed on either side, and mounting points are provided for a bow shade system. The cockpit is designed for socializing, with wraparound seating extending from the stern up the port side. The port seat swivels with flip-up bolsters to integrate seamlessly into the seating arrangement. Additional storage is abundant, including a cooler that slides out from under a corner seat. The starboard side hosts an entertainment center equipped with an electric grill and a sink with hot and cold running water, supported by a six-gallon hot water heater and powered by a dedicated battery and inverter system. Access to the stern is facilitated by angled steps on the starboard side, preserving cockpit seating space. The stern area includes a versatile sun pad that converts into an aft-facing bench with five adjustable seat back positions, complete with drink holders, stereo remote, and accessory plug. The swim platform is treated with SeaDek for traction and includes a four-step reboarding ladder with leather-covered grab handles. The port console houses an enclosed head compartment featuring a vacuum flush toilet, stainless steel sink, wood shelf, opening port light, and non-skid decking.

Helm and Technological Features

At the helm, the 310 SLX is equipped with Sea Ray's Dynamic Dash, which incorporates two pieces of flush-mounted glass and dual digital screens with custom interfaces. The upper displays provide twin tachometers and outdrive trim indicators, while the center displays speed, fuel data, and can be switched to various inputs including mapping. Controls are accessible via touchscreen or joystick interface, integrating smart technology that adjusts lighting to preserve night vision and features an automatically rising anchor light. The helm seat is double-wide with separate flip-up bolsters and premium upholstery. Additional operational features include a concealed windlass at the bow with a stainless steel anchor roller and a concealed electrical panel adjacent to the helm console. The boat also incorporates an Axius joystick system, delivering precise and intuitive maneuvering, ideal for docking and close-quarters handling.

Power and Performance

The 310 SLX is powered by twin standard 250 horsepower MerCruiser 4.5L engines, accessed via an electrically actuated hatch that provides ample space for maintenance. During testing, the boat reached a top speed of 44.1 miles per hour at 4820 RPM, consuming 36.5 gallons per hour and yielding a range of 141 miles. The most economical cruise was recorded at 3500 RPM and 28.9 miles per hour, with a fuel burn of 17.8 gallons per hour and an extended range of 190 miles, even in choppy conditions while maintaining a 10% fuel reserve. The vessel planes quickly, achieving planing in 5.3 seconds, reaching 20 miles per hour in 7.8 seconds, and exceeding 30 miles per hour in 12.1 seconds. A dynamic running surface with flush-mounted automatic trim tabs along the chines enhances stability and reduces planning time. These tabs adjust automatically during throttle and steering inputs, maintaining plane at speeds as low as 14 miles per hour, which is particularly beneficial for slow cruising. Handling is solid and smooth, with the boat remaining dry and comfortable except when operating at full speed directly into choppy waves. Overall, the 310 SLX demonstrates open water capability and responsive performance.

Luxury and Comfort Details

Luxury is evident throughout the 310 SLX in subtle yet impactful ways. Leather-wrapped grab handles, reminiscent of larger yachts, and multi-tone fabric upholstery with redesigned seat cushions that are an inch thicker than previous models contribute to enhanced comfort. The seats feature multi-density foam, combining firm and soft layers for optimal support. The upgraded vinyl upholstery is soft to the touch while offering stain and weather resistance. Attention to detail is apparent in the use of double and diamond stitching patterns and custom embroidery accents. The windshield is uniquely curved both vertically and horizontally, with no trim molding along the bottom edge, enhancing aesthetics and visibility. The carbon-reinforced hardtop includes structural beams that eliminate the need for obstructive stainless steel supports, preserving sight lines. Additionally, the standard powered collapsible tower includes an opening sunroof and an extendable shore shade, further enhancing the onboard experience.

Conclusion

The Sea Ray 310 SLX exemplifies a comprehensive advancement in the SLX line, combining refined design, advanced technology, and thoughtful luxury features. Its performance characteristics, including quick planing, efficient cruising, and stable handling in varied conditions, underscore its capability as an open water vessel. The meticulous attention to comfort and detail throughout the interior and exterior spaces elevates the boating experience, making the 310 SLX a premium craft that commands pride of ownership. This model successfully raises the standard for luxury sport boats within its class.

Overview from around the web 2021 Sea Ray SLX 310

The 2021 Sea Ray SLX 310 has garnered positive feedback from customers who appreciate its blend of performance, luxury, and innovative features

Users often highlight the boat's spacious and well-designed cockpit, which offers ample seating and amenities for entertaining family and friends. The quality of materials and craftsmanship is frequently praised, with many noting the sleek, modern aesthetic that Sea Ray is known for. Performance-wise, customers commend its powerful engines that deliver a smooth and exhilarating ride, making it ideal for both leisurely cruises and water sports. The ease of handling and maneuverability are also frequently mentioned, enhancing the overall boating experience. Additionally, the advanced technology available in the SLX 310, such as the intuitive touchscreen controls and integrated sound systems, has received accolades for enhancing usability and connectivity on the water. Overall, feedback reflects a high level of satisfaction, making the Sea Ray SLX 310 a popular choice among boaters looking for a versatile and stylish vessel.

The Biggest Pros and Cons

The 2021 Sea Ray SLX 310 is a stylish and luxurious boat that combines performance with modern amenities. Here are some pros and cons to consider:

Pros

Performance and Power: The SLX 310 comes equipped with powerful engines that provide excellent acceleration and handling, making it suitable for both leisurely cruising and water sports.

Luxurious Interior: The cabin is designed with high-quality materials and finishes, offering a comfortable and elegant atmosphere. Ample seating and a well-appointed helm add to the luxurious experience on board.

Innovative Technology: The boat features state-of-the-art technology, including touchscreen controls, a premium sound system, and optional digital cockpit displays, enhancing the overall boating experience.

Spacious Layout: With generous seating options both inside and out, the SLX 310 is perfect for entertaining family and friends. The open layout allows for easy movement throughout the boat.

Stylish Design: The sleek lines and modern aesthetic of the SLX 310 turn heads on the water, making it a standout choice for boat enthusiasts who appreciate style as much as functionality.

Versatile Features: Optional extras such as a full wet bar, swim platform, and extensive storage solutions make the SLX 310 versatile for various activities, from relaxing days on the water to adventurous outings.

Cons

Price Point: The SLX 310 is positioned in the luxury segment, making it a significant investment. The initial purchase price and ongoing maintenance costs may not be feasible for everyone.

Fuel Efficiency: While performance is strong, the fuel consumption can be higher compared to smaller or less powerful boats, which could lead to increased operating costs over time.

Size and Handling: As a larger boat, the SLX 310 may be more challenging to maneuver in tight spaces, especially for less experienced boaters. Docking may require extra attention.

Limited Sleeping Accommodations: While the interior is spacious, sleeping arrangements are limited to a cozy cabin that may not comfortably accommodate larger groups for overnight stays.

Weather Considerations: Although the boat is equipped for comfort, adverse weather conditions can limit its use. Owners should always consider weather forecasts and plan accordingly.

Made For

The 2021 Sea Ray SLX 310 is designed for boaters who appreciate luxury, performance, and versatility on the water. Ideal for families and friends looking to enjoy day trips or weekend getaways, this sleek sport boat offers a comfortable lifestyle on the waves. Whether you're an experienced boater or a newcomer, the SLX 310 caters to those who desire both exhilarating performance and upscale amenities. With spacious seating, cutting-edge technology, and thoughtful storage solutions, it's perfect for entertaining guests or simply lounging under the sun. The integrated swim platform and easy access to water activities make it a great choice for watersports enthusiasts, while its advanced handling and smooth ride appeal to thrill-seekers. In essence, the 2021 Sea Ray SLX 310 is for anyone who values quality, style, and unforgettable moments on the water.

Finance your dream boat!

Use our boat payment calculator to estimate monthly payments for 2021 Sea Ray SLX 310. Enter your down payment, choose a loan term, and adjust the interest rate to see an instant payment estimate — ideal if you're calculating boat payments before you enquire. Wondering how much does a Bowrider cost in today's market, or how much does a Sea Ray cost for similar models? This boat financing calculator helps you compare scenarios in seconds, whether you're considering used boat financing or a new purchase.
Monthly payment
$1,452.88/mo
$
$
%
Principal Loan Amount$ 195,022
Total Payment$348,692.09

Finance your dream boat!

Use our boat payment calculator to estimate monthly payments for 2021 Sea Ray SLX 310. Enter your down payment, choose a loan term, and adjust the interest rate to see an instant payment estimate — ideal if you're calculating boat payments before you enquire. Wondering how much does a Bowrider cost in today's market, or how much does a Sea Ray cost for similar models? This boat financing calculator helps you compare scenarios in seconds, whether you're considering used boat financing or a new purchase.
Monthly payment
$1,452.88/mo
$
$
%
Principal Loan Amount$ 195,022
Total Payment$348,692.09

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MarineMax Somers Point

Address

Clearwater, Florida 33756

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