Sea Ray 320 Sundancer 2005 boat specs
Sea Ray
Sea Ray 320 Sundancer 2005
2005
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VS
Sea Ray Sedan 550 1996 boat specs
Sea Ray
Sea Ray Sedan 550 1996
1996
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Sea Ray 320 Sundancer 2005 vs Sea Ray Sedan 550 1996 — Same Brand, Different Boat

The Sea Ray 320 Sundancer 2005 vs Sea Ray Sedan 550 1996 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 Sedan 550 1996 measures 56,1 feet overall (1996), giving it roughly 21,1 additional feet of deck space compared to the Sea Ray 320 Sundancer 2005 at 35,0 feet (2005). Weight tells a clearer story for trailering families: the Sea Ray Sedan 550 1996 tips the scales at 45 700 lbs — 45 562 lbs less than the Sea Ray 320 Sundancer 2005 at 138 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 Sedan 550 1996 tops out at 800 hp. Engine specs for the Sea Ray 320 Sundancer 2005 aren't listed — confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the Sea Ray Sedan 550 1996 carries 7 gallons versus 2 gallons in the Sea Ray 320 Sundancer 2005. 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 Sedan 550 1996 is rated for 17 passengers, while the Sea Ray 320 Sundancer 2005 caps at 10. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sea Ray Sedan 550 1996 could be the deciding factor.

Bottom line: Choose the Sea Ray Sedan 550 1996 if your priority is putting more people on the water — it handles 17 passengers and at 56,1 ft it has the deck room to back that rating up comfortably. The Sea Ray 320 Sundancer 2005 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 10 that costs less to run day-to-day.
General Boat Info
MakeSea Ray
Makenot available
Model320 Sundancer?
Modelnot available
Model Year2005
Model Yearnot available
Measurements / Dimensions
Beam11 ft. 5 in. (3.48 m)
Beam15.00 ft
Beam - Meters3.48
Beam - Meters4.57
Beam - Inches137
Beam - Inches180
Deadrise21℃
Deadrisenot available
Draft [drive up] - Detail33 in. (83.8 cm)
Draft [drive up] - Detailnot available
Draft [drive up] meters0.84
Draft [drive up] metersnot available
Draft [drive up] inches33
Draft [drive up] inchesnot available
Draft [max] - Detail43 in. (109.2 cm) Inboards: 33 in. (83.8 cm)
Draft [max] - Detail5.00 ft
Draft [max] - Meters1.09
Draft [max] - Meters1.52
Draft [max] - Inches43
Draft [max] - Inches60
Weight - Detail13,800 lbs. (6,260 kg)
Weight - Detailnot available
Weight - kg6259.57
Weight - kgnot available
Weight - lbs.138
Weight - lbs.not available
Length - Meters10.82
Length - Metersnot available
Length - Feet35
Length - Feet56.12
Length - Inches6
Length - Inchesnot available
Length overall - Detail35 ft. 6 in. (10.82 m)
Length overall - Detail56.12 ft
Length overall - Meters10.82
Length overall - Meters17.11
Length overall - Inches426
Length overall - Inches673
Displacementnot available
Displacement45700.00 lbs
Engine and Drivetrain
Engine/s standardT-5.0L MPI Bravo? III MCM Stern Drives (T-260 hp - 194 kw)
Engine/s standardnot available
Fuel tank capacity - Detail200 gal. (757 l)
Fuel tank capacity - Detailnot available
Fuel tank capacity - Liters757.08
Fuel tank capacity - Liters2649.79
Fuel tank capacity - Gal2
Fuel tank capacity - Gal7
Drive typeI/O
Drive typeinboard
Engine makenot available
Engine makeCaterpillar
Horsepowernot available
Horsepower800 hp
Fuel typenot available
Fuel typeDiesel
Engine 2 Engine Makenot available
Engine 2 Engine MakeCaterpillar
Engine 2 Horsepowernot available
Engine 2 Horsepower800 hp
Engine 2 Fuel Typenot available
Engine 2 Fuel TypeDiesel
Engine 2 Drive Typenot available
Engine 2 Drive Typeinboard
Operational Info
Water capacity40 gal. (151.4 l)
Water capacity2
Holding tank capacity - Detail28 gal. (106 l)
Holding tank capacity - Detailnot available
Holding tank capacity - Liters105.99
Holding tank capacity - Liters257.41
Holding tank capacity - Gal28
Holding tank capacity - Gal68
Sleeping capacitynot available
Sleeping capacity6
Cabinsnot available
Cabins3
Headnot available
Head2
Boat typenot available
Boat typePower

Sea Ray 320 Sundancer 2005 vs Sea Ray Sedan 550 1996 — Common Questions

Which is the larger boat — the Sea Ray 320 Sundancer 2005 or the Sea Ray Sedan 550 1996?
The Sea Ray Sedan 550 1996 is the longer of the two at 56,1 feet overall. The Sea Ray 320 Sundancer 2005 comes in at 35,0 feet, making it roughly 21,1 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Sea Ray 320 Sundancer 2005 or the Sea Ray Sedan 550 1996?
For trailering, the Sea Ray 320 Sundancer 2005 has the edge at 138 lbs dry weight versus 45 700 lbs for the Sea Ray Sedan 550 1996. 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 Sedan 550 1996 has a documented max rating of 800 hp. Engine specifications for the Sea Ray 320 Sundancer 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 320 Sundancer 2005 is Coast Guard rated for 10 passengers, while the Sea Ray Sedan 550 1996 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 Sedan 550 1996 measures 180" wide, compared to 137" for the Sea Ray 320 Sundancer 2005. 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 320 Sundancer 2005 or the Sea Ray Sedan 550 1996?
The Sea Ray Sedan 550 1996 has the bigger tank at 7 gallons, versus 2 gallons on the Sea Ray 320 Sundancer 2005. That 5-gallon difference translates to roughly 15–25 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Sea Ray 320 Sundancer 2005 and Sea Ray Sedan 550 1996 from the same manufacturer?
Yes — both the Sea Ray 320 Sundancer 2005 and the Sea Ray Sedan 550 1996 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.