Sea Ray 390 Sundancer 2005 boat specs
Sea Ray
Sea Ray 390 Sundancer 2005
2005
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VS
Sea Ray Express Cruiser 390 1990 boat specs
Sea Ray
Sea Ray Express Cruiser 390 1990
1990
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Sea Ray 390 Sundancer 2005 vs Sea Ray Express Cruiser 390 1990 — Same Brand, Different Boat

The Sea Ray 390 Sundancer 2005 vs Sea Ray Express Cruiser 390 1990 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.

On paper these two are close siblings in the size department — Sea Ray 390 Sundancer 2005 at 41,0 ft versus Sea Ray Express Cruiser 390 1990 at 42,0 ft. Weight tells a clearer story for trailering families: the Sea Ray Express Cruiser 390 1990 tips the scales at 16 400 lbs — 16 207 lbs less than the Sea Ray 390 Sundancer 2005 at 193 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 Express Cruiser 390 1990 tops out at 370 hp. Engine specs for the Sea Ray 390 Sundancer 2005 aren't listed — confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the Sea Ray 390 Sundancer 2005 carries 275 gallons versus 3 gallons in the Sea Ray Express Cruiser 390 1990. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 12 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.

Bottom line: The Sea Ray 390 Sundancer 2005 and Sea Ray Express Cruiser 390 1990 are closely matched on the specs that matter most. Test-ride both on the water you actually use, check current dealer pricing, and factor in long-term service access before you sign.
General Boat Info
MakeSea Ray
Makenot available
Model390 Sundancer?
Modelnot available
Model Year2005
Model Yearnot available
Measurements / Dimensions
Beam13 ft. 2 in. (4.01 m)
Beam13.11 ft
Beam - Meters4.01
Beam - Meters4
Beam - Inches158
Beam - Inches157
Deadrise19℃
Deadrisenot available
Draft [max] - Detail34 in. (86.36 cm)
Draft [max] - Detail2.40 ft
Draft [max] - Meters0.86
Draft [max] - Meters0.73
Draft [max] - Inches34
Draft [max] - Inches29
Weight - Detail19,300 lbs. (8,685 kg)
Weight - Detailnot available
Weight - kg8754.33
Weight - kgnot available
Weight - lbs.193
Weight - lbs.not available
Length - Meters12.49
Length - Metersnot available
Length - Feet41
Length - Feet42
Length overall - Detail41 ft. 0 in. (12.49 m)
Length overall - Detail42.00 ft
Length overall - Meters12.5
Length overall - Meters12.8
Length overall - Inches492
Length overall - Inches504
Displacementnot available
Displacement16400.00 lbs
Engine and Drivetrain
Engine/s standardT-VD-8.1 S Horizon MerCruiser? Gasoline Inboards (T-370 hp - 276 kw)
Engine/s standardnot available
Fuel tank capacity - Detail275 gal. (1,040.9 l)
Fuel tank capacity - Detailnot available
Fuel tank capacity - Liters1040.99
Fuel tank capacity - Liters1135.62
Fuel tank capacity - Gal275
Fuel tank capacity - Gal3
Drive typeInboard
Drive typeinboard
Engine makenot available
Engine makeMercruiser
Engine modelnot available
Engine model454 raw water cooled
Horsepowernot available
Horsepower370 hp
Fuel typenot available
Fuel typeGas
Engine 2 Engine Makenot available
Engine 2 Engine MakeMercruiser
Engine 2 Engine Modelnot available
Engine 2 Engine Model454 raw water cooled
Engine 2 Horsepowernot available
Engine 2 Horsepower370 hp
Engine 2 Fuel Typenot available
Engine 2 Fuel TypeGas
Engine 2 Drive Typenot available
Engine 2 Drive Typeinboard
Operational Info
Water capacity70 gal. (265 l)
Water capacity1
Holding tank capacity - Detail42 gal. (159 l)
Holding tank capacity - Detailnot available
Holding tank capacity - Liters158.99
Holding tank capacity - Liters151.42
Holding tank capacity - Gal42
Holding tank capacity - Gal4
Sleeping capacitynot available
Sleeping capacity4
Cabinsnot available
Cabins2
Headnot available
Head1
Boat typenot available
Boat typePower

Sea Ray 390 Sundancer 2005 vs Sea Ray Express Cruiser 390 1990 — Common Questions

Which is the larger boat — the Sea Ray 390 Sundancer 2005 or the Sea Ray Express Cruiser 390 1990?
The Sea Ray Express Cruiser 390 1990 is the longer of the two at 42,0 feet overall. The Sea Ray 390 Sundancer 2005 comes in at 41,0 feet, making it roughly 1,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Sea Ray 390 Sundancer 2005 or the Sea Ray Express Cruiser 390 1990?
For trailering, the Sea Ray 390 Sundancer 2005 has the edge at 193 lbs dry weight versus 16 400 lbs for the Sea Ray Express Cruiser 390 1990. 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 Express Cruiser 390 1990 has a documented max rating of 370 hp. Engine specifications for the Sea Ray 390 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 390 Sundancer 2005 is Coast Guard rated for 12 passengers, while the Sea Ray Express Cruiser 390 1990 is certified for 12. 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 390 Sundancer 2005 measures 158" wide, compared to 157" for the Sea Ray Express Cruiser 390 1990. 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 390 Sundancer 2005 or the Sea Ray Express Cruiser 390 1990?
The Sea Ray 390 Sundancer 2005 has the bigger tank at 275 gallons, versus 3 gallons on the Sea Ray Express Cruiser 390 1990. That 272-gallon difference translates to roughly 816–1360 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Sea Ray 390 Sundancer 2005 and Sea Ray Express Cruiser 390 1990 from the same manufacturer?
Yes — both the Sea Ray 390 Sundancer 2005 and the Sea Ray Express Cruiser 390 1990 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.