Sea Ray 390 Motor Yacht 2005 boat specs
Sea Ray
Sea Ray 390 Motor Yacht 2005
2005
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VS
Sea Ray 520 Sedan Bridge 2012 boat specs
Sea Ray
Sea Ray 520 Sedan Bridge 2012
2012
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Sea Ray 390 Motor Yacht 2005 vs Sea Ray 520 Sedan Bridge 2012 — Same Brand, Different Boat

The Sea Ray 390 Motor Yacht 2005 vs Sea Ray 520 Sedan Bridge 2012 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 520 Sedan Bridge 2012 measures 52,3 feet overall (2012), giving it roughly 11,3 additional feet of deck space compared to the Sea Ray 390 Motor Yacht 2005 at 41,0 feet (2005). Weight tells a clearer story for trailering families: the Sea Ray 390 Motor Yacht 2005 tips the scales at 265 lbs — 223 lbs more than the Sea Ray 520 Sedan Bridge 2012 at 42 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 520 Sedan Bridge 2012 tops out at 764 hp. Engine specs for the Sea Ray 390 Motor Yacht 2005 aren't listed — confirm with a dealer before selecting an outboard.Both carry nearly identical fuel loads — 3 gal and 5 gal — so range won't be a tiebreaker here.

For family outings this is probably the sharpest distinction between the two. The Sea Ray 520 Sedan Bridge 2012 is rated for 15 passengers, while the Sea Ray 390 Motor Yacht 2005 caps at 12. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sea Ray 520 Sedan Bridge 2012 could be the deciding factor.

Bottom line: Choose the Sea Ray 520 Sedan Bridge 2012 if your priority is putting more people on the water — it handles 15 passengers and at 52,3 ft it has the deck room to back that rating up comfortably. The Sea Ray 390 Motor Yacht 2005 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 12 that costs less to run day-to-day.
General Boat Info
MakeSea Ray
MakeSea Ray
Model390 Motor Yacht
Model520 Sedan Bridge
Model Year2005
Model Year2012
Measurements / Dimensions
Beam14 ft. 3 in. (4.34 m)
Beam15 ft. 3 in. (4.65 m)
Beam - Meters4.34
Beam - Meters4.65
Beam - Inches171
Beam - Inches183
Deadrise15℃
Deadrise15℃
Draft [max] - Detail36 in. (91.4 cm)
Draft [max] - Detail51 in. (130 cm)
Draft [max] - Meters0.91
Draft [max] - Meters1.3
Draft [max] - Inches36
Draft [max] - Inches51
Weight - Detail26,500 lbs. (12,020 kg)
Weight - Detail42,000 lbs. (19,051 kg)
Weight - kg12020.19
Weight - kg19050.86
Weight - lbs.265
Weight - lbs.42
Length - Meters12.72
Length - Metersnot available
Length - Feet41
Length - Feet52.25
Length - Inches9
Length - Inchesnot available
Length overall - Detail41 ft. 9 in. (12.72 m)
Length overall - Detail52 ft. 3 in. (16 m)
Length overall - Meters12.73
Length overall - Meters15.93
Length overall - Inches501
Length overall - Inches627
Engine and Drivetrain
Engine/s standardT-8.1 S Horizon MerCruiser? Gasoline Inboards (T-370 hp - 276 kw)
Engine/s standardTwin QSM11 670 diesel inboards with DTS
Fuel tank capacity - Detail300 gal. (1,136 l)
Fuel tank capacity - Detail500 gal. (1,892 l)
Fuel tank capacity - Liters1135.62
Fuel tank capacity - Liters1892.71
Fuel tank capacity - Gal3
Fuel tank capacity - Gal5
Drive typeInboard
Drive typeInboard - Twin
Engine makenot available
Engine makeCummins® MerCruiser®
Fuel typenot available
Fuel typeDiesel
Horsepowernot available
HorsepowerTwin 640 hp (477 kW)
Engine maxnot available
Engine maxTwin 764 hp (588 kW)
Operational Info
Water capacity100 gal. (378.5 l)
Water capacity140 gal. (530 l)
Holding tank capacity - Detail54 gal. (204.4 l)
Holding tank capacity - Detail68 gal. (257 l)
Holding tank capacity - Liters204.41
Holding tank capacity - Liters257.41
Holding tank capacity - Gal54
Holding tank capacity - Gal68
Body / Hull
Hull materialnot available
Hull materialFiberglass
Hull typenot available
Hull typeSemi Displacement

Sea Ray 390 Motor Yacht 2005 vs Sea Ray 520 Sedan Bridge 2012 — Common Questions

Which is the larger boat — the Sea Ray 390 Motor Yacht 2005 or the Sea Ray 520 Sedan Bridge 2012?
The Sea Ray 520 Sedan Bridge 2012 is the longer of the two at 52,3 feet overall. The Sea Ray 390 Motor Yacht 2005 comes in at 41,0 feet, making it roughly 11,3 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Sea Ray 390 Motor Yacht 2005 or the Sea Ray 520 Sedan Bridge 2012?
For trailering, the Sea Ray 520 Sedan Bridge 2012 has the edge at 42 lbs dry weight versus 265 lbs for the Sea Ray 390 Motor Yacht 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 520 Sedan Bridge 2012 has a documented max rating of 764 hp. Engine specifications for the Sea Ray 390 Motor Yacht 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 Motor Yacht 2005 is Coast Guard rated for 12 passengers, while the Sea Ray 520 Sedan Bridge 2012 is certified for 15. 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 520 Sedan Bridge 2012 measures 183" wide, compared to 171" for the Sea Ray 390 Motor Yacht 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.
How do the fuel tanks compare on the Sea Ray 390 Motor Yacht 2005 and Sea Ray 520 Sedan Bridge 2012?
Both boats carry similar fuel loads — 3 gallons and 5 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 390 Motor Yacht 2005 and Sea Ray 520 Sedan Bridge 2012 from the same manufacturer?
Yes — both the Sea Ray 390 Motor Yacht 2005 and the Sea Ray 520 Sedan Bridge 2012 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.