Sea Ray 185 Sport 2005 boat specs
Sea Ray
Sea Ray 185 Sport 2005
2005
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VS
Sea Ray 390 Sundancer 2011 boat specs
Sea Ray
Sea Ray 390 Sundancer 2011
2011
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Sea Ray 185 Sport 2005 vs Sea Ray 390 Sundancer 2011 — Same Brand, Different Boat

The Sea Ray 185 Sport 2005 vs Sea Ray 390 Sundancer 2011 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 390 Sundancer 2011 measures 39,0 feet overall (2011), giving it roughly 21,0 additional feet of deck space compared to the Sea Ray 185 Sport 2005 at 18,0 feet (2005). At 265 lbs and 246 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.

The Sea Ray 390 Sundancer 2011 tops out at 425 hp. Engine specs for the Sea Ray 185 Sport 2005 aren't listed — confirm with a dealer before selecting an outboard.Both carry nearly identical fuel loads — 26 gal and 25 gal — so range won't be a tiebreaker here.

For family outings this is probably the sharpest distinction between the two. The Sea Ray 390 Sundancer 2011 is rated for 11 passengers, while the Sea Ray 185 Sport 2005 caps at 7. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sea Ray 390 Sundancer 2011 could be the deciding factor.

Bottom line: Choose the Sea Ray 390 Sundancer 2011 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 185 Sport 2005 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 7 that costs less to run day-to-day.
General Boat Info
MakeSea Ray
MakeSea Ray
Model185 Sport
Model390 Sundancer?
Model Year2005
Model Year2011
Measurements / Dimensions
Beam76 in. (2.29 m)
Beam12 ft. 6 in. (3.81 m)
Beam - Meters1.93
Beam - Meters3.81
Beam - Inches76
Beam - Inches15
Deadrise19℃
Deadrise21℃
Draft [drive up] - Detail18 in. (45.7 cm)
Draft [drive up] - DetailAxius: 26 in. (67 cm)
Draft [drive up] meters0.46
Draft [drive up] meters0.66
Draft [drive up] inches18
Draft [drive up] inches26
Draft [max] - Detail36 in. (91.4 cm)
Draft [max] - DetailAxius Drives: 36 in. (91 cm) Zeus: 46 in. (117 cm) Gas V-Drives: 40 in. (101 cm)
Draft [max] - Meters0.91
Draft [max] - Meters1.17
Draft [max] - Inches36
Draft [max] - Inches46
Weight - Detail2,650 lbs. (1,202 kg)
Weight - DetailWith Axius: 19,933 lbs. (9,041 kg) Gas V-Drives: 20,500 lbs. (9,299 kg) Zeus: 24,600 lbs. (11,158 kg)
Weight - kg1202.02
Weight - kg11158.36
Weight - lbs.265
Weight - lbs.246
Length - Meters5.64
Length - Metersnot available
Length - Feet18
Length - Feet39
Length - Inches6
Length - Inchesnot available
Length overall - Detail18 ft. 6 in. (5.64 m)
Length overall - Detail39 ft. 0 in. (11.89 m)
Length overall - Meters5.64
Length overall - Meters11.89
Length overall - Inches222
Length overall - Inches468
Engine and Drivetrain
Engine/s standard3.0L Alpha I MCM Stern Drive (135 hp - 101 kw)
Engine/s standardT-VD 8.2S ECT Horizon with DTS
Fuel tank capacity - Detail26 gal. (98.4 l)
Fuel tank capacity - Detail250 gal. (946 l)
Fuel tank capacity - Liters98.42
Fuel tank capacity - Liters946.35
Fuel tank capacity - Gal26
Fuel tank capacity - Gal25
Drive typeI/O
Drive typeI/O - Twin
Engine makenot available
Engine makeMerCruiser®
Fuel typenot available
Fuel typeGas or Diesel
Horsepowernot available
HorsepowerT-375 hp (280 kW)
Engine maxnot available
Engine maxTwin 425 hp (317 kW)
Operational Info
Maximum capacity1,200 lbs. (544.3 kg)
Maximum capacitynot available
Maximum people7
Maximum peoplenot available
Water capacitynot available
Water capacity55 gal. (208 l)
Holding tank capacity - Detailnot available
Holding tank capacity - Detail35 gal. (132 l)
Holding tank capacity - Litersnot available
Holding tank capacity - Liters132.49
Holding tank capacity - Galnot available
Holding tank capacity - Gal35
Body / Hull
Hull materialnot available
Hull materialFiberglass
Hull typenot available
Hull typeSemi Displacement

Sea Ray 185 Sport 2005 vs Sea Ray 390 Sundancer 2011 — Common Questions

Which is the larger boat — the Sea Ray 185 Sport 2005 or the Sea Ray 390 Sundancer 2011?
The Sea Ray 390 Sundancer 2011 is the longer of the two at 39,0 feet overall. The Sea Ray 185 Sport 2005 comes in at 18,0 feet, making it roughly 21,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Sea Ray 185 Sport 2005 or the Sea Ray 390 Sundancer 2011?
For trailering, the Sea Ray 390 Sundancer 2011 has the edge at 246 lbs dry weight versus 265 lbs for the Sea Ray 185 Sport 2005. 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 390 Sundancer 2011 has a documented max rating of 425 hp. Engine specifications for the Sea Ray 185 Sport 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 185 Sport 2005 is Coast Guard rated for 7 passengers, while the Sea Ray 390 Sundancer 2011 is certified for 11. 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 185 Sport 2005 measures 76" wide, compared to 15" for the Sea Ray 390 Sundancer 2011. 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.
How do the fuel tanks compare on the Sea Ray 185 Sport 2005 and Sea Ray 390 Sundancer 2011?
Both boats carry similar fuel loads — 26 gallons and 25 gallons respectively. Range will depend heavily on motor choice, throttle usage, and whether you're on flat lake water or coastal chop.
Are the Sea Ray 185 Sport 2005 and Sea Ray 390 Sundancer 2011 from the same manufacturer?
Yes — both the Sea Ray 185 Sport 2005 and the Sea Ray 390 Sundancer 2011 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.