Sea Ray Sedan Bridge 390 2010 boat specs
Sea Ray
Sea Ray Sedan Bridge 390 2010
2010
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VS
Sea Ray Sundancer 300 2005 boat specs
Sea Ray
Sea Ray Sundancer 300 2005
2005
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Sea Ray Sedan Bridge 390 2010 vs Sea Ray Sundancer 300 2005 — Same Brand, Different Boat

The Sea Ray Sedan Bridge 390 2010 vs Sea Ray Sundancer 300 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.

The power gap is worth calling out. Rated to 380 hp, the Sea Ray Sedan Bridge 390 2010 has a 60-hp advantage over the Sea Ray Sundancer 300 2005's 320-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Sea Ray Sundancer 300 2005 carries 175 gallons versus 3 gallons in the Sea Ray Sedan Bridge 390 2010. 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 Bridge 390 2010 is rated for 11 passengers, while the Sea Ray Sundancer 300 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 Bridge 390 2010 could be the deciding factor.

Bottom line: Choose the Sea Ray Sedan Bridge 390 2010 if your priority is putting more people on the water — it handles 11 passengers and at 39,0 ft it has the deck room to back that rating up comfortably. The Sea Ray Sundancer 300 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.
Measurements / Dimensions
Length overall - Detail39.00 ft
Length overall - Detail33.40 ft
Length - Feet39
Length - Feet33.4
Length overall - Meters11.89
Length overall - Meters10.18
Length overall - Inches468
Length overall - Inches401
Beam13.00 ft
Beam10.60 ft
Beam - Meters3.96
Beam - Meters3.23
Beam - Inches156
Beam - Inches127
Draft [max] - Detail4.00 ft
Draft [max] - Detail3.40 ft
Draft [max] - Meters1.22
Draft [max] - Meters1.04
Draft [max] - Inches48
Draft [max] - Inches41
Draft Minnot available
Draft Min2.00 ft
Displacementnot available
Displacement12490.00 lbs
Engine and Drivetrain
Fuel tank capacity - Gal3
Fuel tank capacity - Gal175
Fuel tank capacity - Liters1135.62
Fuel tank capacity - Liters662.45
Engine makeMercruiser
Engine makeMerCruiser
Horsepower380 hp
Horsepower320 hp
Fuel typeGas
Fuel typeGas
Drive typeinboard
Drive typenot available
Engine 2 Engine MakeMercruiser
Engine 2 Engine Makenot available
Engine 2 Horsepower370 hp
Engine 2 Horsepowernot available
Engine 2 Fuel TypeGas
Engine 2 Fuel Typenot available
Engine 2 Drive Typeinboard
Engine 2 Drive Typenot available
Engine modelnot available
Engine model6.2L 383 Stroker
Operational Info
Sleeping capacity4
Sleeping capacity6
Cabins2
Cabinsnot available
Head1
Head1
Water capacity75
Water capacity35
Holding tank capacity - Gal35
Holding tank capacity - Gal28
Holding tank capacity - Liters132.49
Holding tank capacity - Liters105.99
Boat typePower
Boat typePower

Sea Ray Sedan Bridge 390 2010 vs Sea Ray Sundancer 300 2005 — Common Questions

Which is the larger boat — the Sea Ray Sedan Bridge 390 2010 or the Sea Ray Sundancer 300 2005?
The Sea Ray Sedan Bridge 390 2010 is the longer of the two at 39,0 feet overall. The Sea Ray Sundancer 300 2005 comes in at 33,4 feet, making it roughly 5,6 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which boat can handle a bigger outboard?
The Sea Ray Sedan Bridge 390 2010 is rated to a maximum of 380 hp, giving it the larger power ceiling. The Sea Ray Sundancer 300 2005 tops out at 320 hp. Keep in mind that maximum ratings are just that — matching the motor to the actual load and usage pattern usually matters more than chasing the ceiling.
How many people can each boat hold?
The Sea Ray Sedan Bridge 390 2010 is Coast Guard rated for 11 passengers, while the Sea Ray Sundancer 300 2005 is certified for 10. 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 Bridge 390 2010 measures 156" wide, compared to 127" for the Sea Ray Sundancer 300 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 Sedan Bridge 390 2010 or the Sea Ray Sundancer 300 2005?
The Sea Ray Sundancer 300 2005 has the bigger tank at 175 gallons, versus 3 gallons on the Sea Ray Sedan Bridge 390 2010. That 172-gallon difference translates to roughly 516–860 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Sea Ray Sedan Bridge 390 2010 and Sea Ray Sundancer 300 2005 from the same manufacturer?
Yes — both the Sea Ray Sedan Bridge 390 2010 and the Sea Ray Sundancer 300 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.