Sea Ray 280 Sundancer 2009 boat specs
Sea Ray
Sea Ray 280 Sundancer 2009
2009
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VS
Sea Ray 550 Sedan Bridge 2005 boat specs
Sea Ray
Sea Ray 550 Sedan Bridge 2005
2005
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Sea Ray 280 Sundancer 2009 vs Sea Ray 550 Sedan Bridge 2005 — Same Brand, Different Boat

The Sea Ray 280 Sundancer 2009 vs Sea Ray 550 Sedan Bridge 2005 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.

Size is the most obvious dividing line here. The Sea Ray 550 Sedan Bridge 2005 measures 58,0 feet overall (2005), giving it roughly 26,9 additional feet of deck space compared to the Sea Ray 280 Sundancer 2009 at 31,1 feet (2009). Weight tells a clearer story for trailering families: the Sea Ray 280 Sundancer 2009 tips the scales at 863 lbs — 348 lbs more than the Sea Ray 550 Sedan Bridge 2005 at 515 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.

The Sea Ray 280 Sundancer 2009 carries a rated maximum of 375 hp. Engine data for the Sea Ray 550 Sedan Bridge 2005 wasn't available in our records — check the manufacturer's spec sheet before sizing a motor.Fuel capacity breaks the other way: the Sea Ray 550 Sedan Bridge 2005 carries 7 gallons versus 1 gallons in the Sea Ray 280 Sundancer 2009. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

For family outings this is probably the sharpest distinction between the two. The Sea Ray 550 Sedan Bridge 2005 is rated for 17 passengers, while the Sea Ray 280 Sundancer 2009 caps at 9. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sea Ray 550 Sedan Bridge 2005 could be the deciding factor.

Bottom line: Choose the Sea Ray 550 Sedan Bridge 2005 if your priority is putting more people on the water — it handles 17 passengers and at 58,0 ft it has the deck room to back that rating up comfortably. The Sea Ray 280 Sundancer 2009 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 9 that costs less to run day-to-day.
General Boat Info
MakeSea Ray
MakeSea Ray
Model280 Sundancer?
Model550 Sedan Bridge
Model Year2009
Model Year2005
Measurements / Dimensions
Beam9 ft. 5 in. (2.87 m)
Beam16 ft. 0 in. (4.88 m)
Beam - Meters2.87
Beam - Meters4.88
Beam - Inches113
Beam - Inches192
Deadrise21℃
Deadrise17℃
Draft [drive up] - Detail22 in. (55.9 cm) Twin: 23 in. (58.4 cm)
Draft [drive up] - Detailnot available
Draft [drive up] meters0.58
Draft [drive up] metersnot available
Draft [drive up] inches23
Draft [drive up] inchesnot available
Draft [max] - Detail39 in. (99.1 cm)
Draft [max] - Detail51 in. (129.54 cm)
Draft [max] - Meters0.99
Draft [max] - Meters1.3
Draft [max] - Inches39
Draft [max] - Inches51
Weight - Detail8,630 lbs. (3,900 kg)
Weight - Detail51,500 lbs. (23,360 kg)
Weight - kg3914.5
Weight - kg23359.99
Weight - lbs.863
Weight - lbs.515
Length - Feet31.08
Length - Feet58
Length overall - Detail31 ft. 1 in. (9.47 m)
Length overall - Detail58 ft. 7 in. (17.85 m)
Length overall - Meters9.47
Length overall - Meters17.86
Length overall - Inches373
Length overall - Inches703
Length - Metersnot available
Length - Meters17.85
Length - Inchesnot available
Length - Inches7
Body / Hull
Hull materialFiberglass
Hull materialnot available
Hull typeDeep Vee
Hull typenot available
Engine and Drivetrain
Engine makeMerCruiser®
Engine makenot available
Engine/s standard496 Magnum? MPI Bravo? III DTS
Engine/s standardT-MAN 2848LE4 V8 Diesel Inboards (T-765 hp - 571 kw)
Fuel tank capacity - Detail100 gal. (378.5 l)
Fuel tank capacity - Detail700 gal. (2,649.5 l)
Fuel tank capacity - Liters378.54
Fuel tank capacity - Liters2649.79
Fuel tank capacity - Gal1
Fuel tank capacity - Gal7
Fuel typeGas or Diesel
Fuel typenot available
Drive typeI/O
Drive typeInboard
Horsepower375 hp (280 kW)
Horsepowernot available
Engine max375 hp (280 kW)
Engine maxnot available
Operational Info
Water capacity28 gal. (106 l)
Water capacity150 gal. (567.8 l)
Holding tank capacity - Detail28 gal. (106 l)
Holding tank capacity - Detail68 gal. (257.4 l)
Holding tank capacity - Liters105.99
Holding tank capacity - Liters257.41
Holding tank capacity - Gal28
Holding tank capacity - Gal68

Sea Ray 280 Sundancer 2009 vs Sea Ray 550 Sedan Bridge 2005 — Common Questions

Which is the larger boat — the Sea Ray 280 Sundancer 2009 or the Sea Ray 550 Sedan Bridge 2005?
The Sea Ray 550 Sedan Bridge 2005 is the longer of the two at 58,0 feet overall. The Sea Ray 280 Sundancer 2009 comes in at 31,1 feet, making it roughly 26,9 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Sea Ray 280 Sundancer 2009 or the Sea Ray 550 Sedan Bridge 2005?
For trailering, the Sea Ray 550 Sedan Bridge 2005 has the edge at 515 lbs dry weight versus 863 lbs for the Sea Ray 280 Sundancer 2009. Add a motor (typically 300–500 lbs for an outboard in this class), gear, and a partial fuel load and the difference grows. Lighter is friendlier on smaller tow vehicles and on fuel economy while hauling.
What is the maximum horsepower rating for these boats?
The Sea Ray 280 Sundancer 2009 has a documented max rating of 375 hp. Engine specifications for the Sea Ray 550 Sedan Bridge 2005 were not available in our database — check the OEM spec sheet or manufacturer's website for confirmation.
How many people can each boat hold?
The Sea Ray 280 Sundancer 2009 is Coast Guard rated for 9 passengers, while the Sea Ray 550 Sedan Bridge 2005 is certified for 17. Note that legal capacity and comfortable capacity aren't always the same thing — on a full day out, most experienced boaters aim for about 80% of the rated number to keep things comfortable.
Which boat is wider, and does it affect trailering?
The Sea Ray 550 Sedan Bridge 2005 measures 192" wide, compared to 113" for the Sea Ray 280 Sundancer 2009. The US standard-width towing limit is 8’6" (102") in most states — anything over that may need a wide-load permit. Confirm your specific route requirements with each state's DOT.
Which boat has the larger fuel tank — the Sea Ray 280 Sundancer 2009 or the Sea Ray 550 Sedan Bridge 2005?
The Sea Ray 550 Sedan Bridge 2005 has the bigger tank at 7 gallons, versus 1 gallons on the Sea Ray 280 Sundancer 2009. That 6-gallon difference translates to roughly 18–30 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Sea Ray 280 Sundancer 2009 and Sea Ray 550 Sedan Bridge 2005 from the same manufacturer?
Yes — both the Sea Ray 280 Sundancer 2009 and the Sea Ray 550 Sedan Bridge 2005 are built by Sea Ray. That means shared dealer networks, common parts availability, and consistent build quality across the line. The choice between them is essentially a question of how much boat you need, not which brand you trust.