Sea Ray 180 Sport 2005 boat specs
Sea Ray
Sea Ray 180 Sport 2005
2005
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VS
Sea Ray 450 Sundancer 2012 boat specs
Sea Ray
Sea Ray 450 Sundancer 2012
2012
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Sea Ray 180 Sport 2005 vs Sea Ray 450 Sundancer 2012 — Same Brand, Different Boat

The Sea Ray 180 Sport 2005 vs Sea Ray 450 Sundancer 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 450 Sundancer 2012 measures 45,4 feet overall (2012), giving it roughly 28,4 additional feet of deck space compared to the Sea Ray 180 Sport 2005 at 17,0 feet (2005). Weight tells a clearer story for trailering families: the Sea Ray 450 Sundancer 2012 tips the scales at 27 205 lbs — 27 184 lbs less than the Sea Ray 180 Sport 2005 at 21 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 450 Sundancer 2012 tops out at 480 hp. Engine specs for the Sea Ray 180 Sport 2005 aren't listed — confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the Sea Ray 450 Sundancer 2012 carries 292 gallons versus 21 gallons in the Sea Ray 180 Sport 2005. 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 450 Sundancer 2012 is rated for 13 passengers, while the Sea Ray 180 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 450 Sundancer 2012 could be the deciding factor.

Bottom line: Choose the Sea Ray 450 Sundancer 2012 if your priority is putting more people on the water — it handles 13 passengers and at 45,4 ft it has the deck room to back that rating up comfortably. The Sea Ray 180 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
Model180 Sport
Model450 Sundancer?
Model Year2005
Model Year2012
Measurements / Dimensions
Beam70 in. (2.13 m)
Beam13 ft. 2 in. (4.01 m)
Beam - Meters1.78
Beam - Meters4.01
Beam - Inches7
Beam - Inches158
Deadrise19℃
Deadrise19℃
Draft [drive up] - Detail18 in. (45.7 cm)
Draft [drive up] - DetailAxius: 32 in. (81 cm)
Draft [drive up] meters0.46
Draft [drive up] meters0.81
Draft [drive up] inches18
Draft [drive up] inches32
Draft [max] - Detail35 in. (88.9 cm)
Draft [max] - DetailAxius: 38 in. (96 cm) Zeus: 46 in. (117 cm)
Draft [max] - Meters0.89
Draft [max] - Meters1.17
Draft [max] - Inches35
Draft [max] - Inches46
Weight - Detail2,100 lbs. (953 kg)
Weight - Detail24,362 lbs. (11,050 kg) With Zeus: 27,205 lbs. (12,340 kg)
Weight - kg952.54
Weight - kg12339.97
Weight - lbs.21
Weight - lbs.27205
Length - Meters5.33
Length - Metersnot available
Length - Feet17
Length - Feet45.42
Length - Inches6
Length - Inchesnot available
Length overall - Detail17 ft. 6 in. (5.33 m)
Length overall - Detail45 ft. 5 in. (13.84 m)
Length overall - Meters5.33
Length overall - Meters13.84
Length overall - Inches21
Length overall - Inches545
Engine and Drivetrain
Engine/s standard3.0L Alpha I MCM Stern Drive (135 hp - 101 kw)
Engine/s standardT-MerCruiser® 8.2 MAG ECT DTS Bravo® IIIx with Axius® gasoline stern drives
Fuel tank capacity - Detail21 gal. (79.5 l)
Fuel tank capacity - Detail292 gal. (1,106 l)
Fuel tank capacity - Liters79.49
Fuel tank capacity - Liters1105.34
Fuel tank capacity - Gal21
Fuel tank capacity - Gal292
Drive typeI/O
Drive typeInboard - Twin
Fuel typenot available
Fuel typeGas or Diesel
Horsepowernot available
HorsepowerTwin 375 hp (280 kW)
Engine maxnot available
Engine maxTwin 480 hp (353 kW)
Operational Info
Maximum capacity980 lbs. (444.5 kg)
Maximum capacitynot available
Maximum people7
Maximum peoplenot available
Water capacitynot available
Water capacity70 gal. (264 l)
Holding tank capacity - Detailnot available
Holding tank capacity - Detail42 gal. (159 l)
Holding tank capacity - Litersnot available
Holding tank capacity - Liters158.99
Holding tank capacity - Galnot available
Holding tank capacity - Gal42
Body / Hull
Hull materialnot available
Hull materialFiberglass
Hull typenot available
Hull typeSemi Displacement

Sea Ray 180 Sport 2005 vs Sea Ray 450 Sundancer 2012 — Common Questions

Which is the larger boat — the Sea Ray 180 Sport 2005 or the Sea Ray 450 Sundancer 2012?
The Sea Ray 450 Sundancer 2012 is the longer of the two at 45,4 feet overall. The Sea Ray 180 Sport 2005 comes in at 17,0 feet, making it roughly 28,4 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Sea Ray 180 Sport 2005 or the Sea Ray 450 Sundancer 2012?
For trailering, the Sea Ray 180 Sport 2005 has the edge at 21 lbs dry weight versus 27 205 lbs for the Sea Ray 450 Sundancer 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.
What is the maximum horsepower rating for these boats?
The Sea Ray 450 Sundancer 2012 has a documented max rating of 480 hp. Engine specifications for the Sea Ray 180 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 180 Sport 2005 is Coast Guard rated for 7 passengers, while the Sea Ray 450 Sundancer 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 450 Sundancer 2012 measures 158" wide, compared to 7" for the Sea Ray 180 Sport 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 180 Sport 2005 or the Sea Ray 450 Sundancer 2012?
The Sea Ray 450 Sundancer 2012 has the bigger tank at 292 gallons, versus 21 gallons on the Sea Ray 180 Sport 2005. That 271-gallon difference translates to roughly 813–1355 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Sea Ray 180 Sport 2005 and Sea Ray 450 Sundancer 2012 from the same manufacturer?
Yes — both the Sea Ray 180 Sport 2005 and the Sea Ray 450 Sundancer 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.