Sea Ray 520 Sedan Bridge 2013 boat specs
Sea Ray
Sea Ray 520 Sedan Bridge 2013
2013
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VS
Sea Ray Sedan Bridge 450 2012 boat specs
Sea Ray
Sea Ray Sedan Bridge 450 2012
2012
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Sea Ray 520 Sedan Bridge 2013 vs Sea Ray Sedan Bridge 450 2012 — Same Brand, Different Boat

The Sea Ray 520 Sedan Bridge 2013 vs Sea Ray Sedan Bridge 450 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 2013 measures 52,3 feet overall (2013), giving it roughly 7,3 additional feet of deck space compared to the Sea Ray Sedan Bridge 450 2012 at 45,0 feet (2012). Weight tells a clearer story for trailering families: the Sea Ray Sedan Bridge 450 2012 tips the scales at 36 602 lbs — 36 551 lbs less than the Sea Ray 520 Sedan Bridge 2013 at 51 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 power gap is worth calling out. Rated to 641 hp, the Sea Ray 520 Sedan Bridge 2013 has a 161-hp advantage over the Sea Ray Sedan Bridge 450 2012's 480-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 Sedan Bridge 450 2012 carries 375 gallons versus 5 gallons in the Sea Ray 520 Sedan Bridge 2013. 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 520 Sedan Bridge 2013 is rated for 15 passengers, while the Sea Ray Sedan Bridge 450 2012 caps at 13. 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 2013 could be the deciding factor.

Bottom line: Choose the Sea Ray 520 Sedan Bridge 2013 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 Sedan Bridge 450 2012 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 13 that costs less to run day-to-day.
General Boat Info
MakeSea Ray
Makenot available
Model520 Sedan Bridge
Modelnot available
Model Year2013
Model Yearnot available
Measurements / Dimensions
Beam15 ft. 3 in. (4.65 m)
Beam14.50 ft
Beam - Meters4.65
Beam - Meters4.42
Beam - Inches183
Beam - Inches174
Deadrise15℃
Deadrisenot available
Draft [max] - Detail51 in. (130 cm)
Draft [max] - Detail4.00 ft
Draft [max] - Meters1.3
Draft [max] - Meters1.22
Draft [max] - Inches51
Draft [max] - Inches48
Weight - Detail51,000 lbs. (23,133 kg)
Weight - Detailnot available
Weight - kg23133.19
Weight - kgnot available
Weight - lbs.51
Weight - lbs.not available
Length - Feet52.25
Length - Feet45
Length [over all with swim platform]56 ft. 5 in. (17.2 m)
Length [over all with swim platform]not available
Length overall - Detail52 ft. 3 in. (16 m)
Length overall - Detail45.00 ft
Length overall - Meters15.93
Length overall - Meters13.72
Length overall - Inches627
Length overall - Inches540
Displacementnot available
Displacement36602.00 lbs
Body / Hull
Hull materialFiberglass
Hull materialnot available
Hull typeSemi Displacement
Hull typenot available
Engine and Drivetrain
Engine makeCummins®
Engine makeCummins
Engine/s standardTwin QSM-11 670 T2 with DTS
Engine/s standardnot available
Fuel tank capacity - Detail500 gal. (1,892 l)
Fuel tank capacity - Detailnot available
Fuel tank capacity - Liters1892.71
Fuel tank capacity - Liters1419.53
Fuel tank capacity - Gal5
Fuel tank capacity - Gal375
Fuel typeDiesel
Fuel typeDiesel
Drive typeInboard - Twin
Drive typeinboard
HorsepowerTwin 641 php (477 kW)
Horsepower480 hp
Engine modelnot available
Engine modelQSB 480 Zeus Drives
Engine 2 Engine Makenot available
Engine 2 Engine MakeCummins
Engine 2 Engine Modelnot available
Engine 2 Engine ModelQSB 480 Zeus Drives
Engine 2 Horsepowernot available
Engine 2 Horsepower480 hp
Engine 2 Fuel Typenot available
Engine 2 Fuel TypeDiesel
Engine 2 Drive Typenot available
Engine 2 Drive Typeinboard
Operational Info
Water capacity140 gal. (530 l)
Water capacity13
Holding tank capacity - Detail68 gal. (257 l)
Holding tank capacity - Detailnot available
Holding tank capacity - Liters257.41
Holding tank capacity - Liters158.99
Holding tank capacity - Gal68
Holding tank capacity - Gal42
Sleeping capacitynot available
Sleeping capacity4
Cabinsnot available
Cabins2
Headnot available
Head2
Boat typenot available
Boat typePower

Sea Ray 520 Sedan Bridge 2013 vs Sea Ray Sedan Bridge 450 2012 — Common Questions

Which is the larger boat — the Sea Ray 520 Sedan Bridge 2013 or the Sea Ray Sedan Bridge 450 2012?
The Sea Ray 520 Sedan Bridge 2013 is the longer of the two at 52,3 feet overall. The Sea Ray Sedan Bridge 450 2012 comes in at 45,0 feet, making it roughly 7,3 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Sea Ray 520 Sedan Bridge 2013 or the Sea Ray Sedan Bridge 450 2012?
For trailering, the Sea Ray 520 Sedan Bridge 2013 has the edge at 51 lbs dry weight versus 36 602 lbs for the Sea Ray Sedan Bridge 450 2012. 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.
Which boat can handle a bigger outboard?
The Sea Ray 520 Sedan Bridge 2013 is rated to a maximum of 641 hp, giving it the larger power ceiling. The Sea Ray Sedan Bridge 450 2012 tops out at 480 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 520 Sedan Bridge 2013 is Coast Guard rated for 15 passengers, while the Sea Ray Sedan Bridge 450 2012 is certified for 13. 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 2013 measures 183" wide, compared to 174" for the Sea Ray Sedan Bridge 450 2012. 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 520 Sedan Bridge 2013 or the Sea Ray Sedan Bridge 450 2012?
The Sea Ray Sedan Bridge 450 2012 has the bigger tank at 375 gallons, versus 5 gallons on the Sea Ray 520 Sedan Bridge 2013. That 370-gallon difference translates to roughly 1110–1850 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Sea Ray 520 Sedan Bridge 2013 and Sea Ray Sedan Bridge 450 2012 from the same manufacturer?
Yes — both the Sea Ray 520 Sedan Bridge 2013 and the Sea Ray Sedan Bridge 450 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.