Sea Ray – 280 Sundancer

Maryland, United States

Sea Ray got it right with a 28′ design for comfort, speed, and versatility.  The Sundancer series offers the best set up for a couple, family, or friends to cruise together and enjoy being on a boat with all the comforts you can fit on a 28′ boat. 

Basic Boat Info

Sea Ray
Boat Hull ID
Has Hull ID


31.08 ft
Length Overall
31.08 ft
9.42 ft
Max Draft
3.25 ft
Dry Weight
8,630 lb

Engines / Speed

Engine #1 Specs:
  • Make : MerCruiser
  • Model : MCM 4.3L MPI
  • Fuel : Unleaded
  • Engine Power : 375 hp
Engine #2 Specs:
  • Make : MerCruiser
  • Model : MCM 4.3L MPI
Total Engine Power
375 hp


Fuel Tanks
Fuel Tank Capacity
100 gal
Water Tanks
Water Tank Capacity
28 gal
Holding Tank Count
Holding Tank Capacity
28 gal


Heads Count
Boat Class

Additional Info


Garmin Chart Plotter

Icom VHF

Clarion Sound System

TV and video system





Published on July 7, 2023


Sea Ray boats are designed with sporty families in mind and have a host of features that make a day on the water comfortable and fun.

Shade on Demand

While most families love to soak up the sun, it’s a good idea to get a respite now and then, and on really hot summer days, having shade is critical. That’s why all Sea Ray boats have a way to relax in the shade. Sea Ray’s SPX, SDX and most SLX models have Bimini top options that can be deployed or taken down quickly. They also have available watersports towers with built-in Bimini tops for shade. Larger models like the  SLX 350 and SLX 400 and their outboard counterparts have hard tops that also have available electronically-retractable SureShade awnings for the back of the boat and bow shade options for coverage up front.

Head Compartments

Anyone who has ever taken a road trip with children knows one of the first things you’ll hear is, “I have to go the to the bathroom!” And it’s the same on a boat. Fortunately, all but Sea Ray’s most compact models (SPX 190, SPX 210, and SDX 250) have an available Porta-Potti or VacuFlush head. Most SLX models and Sundancer cabin cruisers have heads as a standard feature.

Submersible Swim Platforms

One of the best reasons to choose a Sea Ray powered by MerCruiser sterndrives is the massive swim platforms that all have submersible swim step options. On smaller models, it manually flips down in the water to allow swimmers to sit submerged. On larger models, an electronic version is available. This feature also makes it easy to reboard after swimming, including four-legged friends, making these Sea Ray models dog-friendly boats.

Watersports Towers, Pylons, and Tow Points

All Sea Ray deck boats, sport boats and bowriders have standard ski tow eyes or pylons depending on their method of power. To take the watersports fun to the next level, there’s the option of adding watersports towers that range from the forward-swept, powder-coated black towers on SPX models that can be easily lowered for storage or ducking under a low bridge by loosening two hand-tightened knobs. More elaborate watersports towers are available for SDX deck boat models that have white or black Bimini tops and can also be manually lowered for storage. Sea Ray SLX 260 and SLX 280 models have optional electronically-lowerable watersports towers with Bimini tops and SLX 310 models have an available ski tow-equipped hard top.

Foot-Friendly Flooring

The first thing most boaters do when boarding a boat is to kick off their shoes and to make sure that experience is foot-friendly, there are premium flooring options available for all Sea Rays. For decades, carpeting was the go-to material for optional flooring but it was prone to retain stains and tended to stay soggy long after the kids were done swimming. Instead, all Sea Ray boats have the option to add snap-in, padded Infinity woven vinyl, which looks great, dries quickly and is easy to clean. Another popular option is SeaDek flooring that’s even softer on the feet and adds a custom look.               

Explore the perfect Sea Ray model for your family by building your custom boat. 

This is for general information purposes only. Your use or reliance on any of the information in this Blog is solely at your own risk. Under no circumstance will we have any liability for any loss or damage of any kind incurred as a result of the use of any of the information provided.

Options and features mentioned subject to change. Please confirm availability of all accessories and equipment with an authorized Sea Ray dealer.


At Sea Ray, we believe that richer moments on the water lead to a richer life. That's why everything we do is designed to make each moment exceptional.

Engine Specifications

Mercury Mercruiser 4.3L MPI 220HP Sterndrive Engine

Fly Out of the Gate. Power and acceleration that gets you to top speed in no time.


* Durable: Longevity is built in, from the cast-iron block and closed freshwater cooling system to the MercFusion-process electro-deposition paint. MerCathode®, an active cathodic anti-corrosion system, is standard with Bravo® drives. SeaCore®, which protects core components with hardcoat anodizing, also is available with Bravo.
* Effortless Efficiency: This engine’s exceptional power-to-weight ratio enhances fuel economy, while the MPI system locks it in. ECT (Emissions Control Technology) works hand in hand with the MPI system and the CPU “brain” to further optimize efficiency and reduce emissions.
* Smooth Running: The MPI system fine-tunes the fuel-to-air mixture in the combustion chamber, delivering ultra-smooth operation from idle to wide-open throttle. Mercury’s engineers achieved outstanding Noise / Vibration / Harshness (NVH) levels in the 4.3L. Power steering is standard, providing you complete and effortless control.
* Total Versatility: Alpha® or Bravo® drive? Single or twins? MPI or ECT? Whether your vessel is a bowrider, cuddy, pontoon or houseboat, it’s easy to configure the perfect 4.3L sterndrive power package for long-range, reliable fun.


* HP / kW: 220 / 164
* Maximum RPM (WOT): 4400 - 4800
* Engine type: V-6
* Displacement (L): 4.3
* Bore and stroke: 4.00 x 3.48 in. / 101 x 88 mm
* Compression ratio: 9.4:1
* Recommended fuel: Unleaded Regular 87 Octane Minimum (R+M/2) or 90 RON 10% Ethanol Maximum
* Engine control system: PCM 09 with SmartCraft CAN capability OBD-M diagnostics Dual oxygen sensors
* Fuel delivery system: Multi-point Electronic Fuel Injection (MPI)
* Air induction: Two-piece long runner intake with 75 mm throttle body (80 mm w/DTS)
* Ignition: Crank fired high voltage switch with knock control
* Alternator amp / Watt: 65 amp / 917 watt
* Water drain system: Single point manual drain (Alpha), Three-point manual (Bravo)
* Exhaust system: Iron manifolds with electro-deposition paint coated dry joint exhaust elbow
* Cooling system: Raw water, Thermostatically controlled
* Accessory drive system: Serpentine belt
* Recommended oil: NMMA Certified FCW 25W-40 Synthetic Blend
* Engine guardian system: High coolant temperature, Knock control, Low drive lubricant, Low oil pressure, Low voltage, Over-rev
* Dimensions (L x W x H): 28 x 30 x 22 in. / 696 x 740 x 559 mm
* Weight (engine only): 775 lb. / 352 kg
* Compatible drives: Alpha, Bravo One, Bravo Three, Bravo Two


Engine Type : V-6
Horsepower : 220 hp (164 kW)
Bore x Stroke : 4.00 x 3.48 in. (101 x 88 mm)
Displacement : 4.3 L
Compression Ratio : 9.4:1


Length : 28 in. (696 mm)
Width : 30 in. (740 mm)
Height : 22 in. (559 mm)
Weight : 775 lb. (352 kg)


Full Throttle Operating Range : 4400 - 4800 rpm
Fuel Induction : Multi-point Electronic Fuel Injection (MPI)
Alternator : 65 amp / 917 watt
Cooling : Raw water, Thermostatically controlled
Warranty : 3 Year Corrosion, 2 Year Limited

Special Features

Open Cockpit



NPYS Disclaimer12

The Company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change, or withdrawal without notice.

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