Detailed Evaluation & Buyer Recommendation
Sea Ray 185 Outboard Sport 2005 vs Sea Ray 300 Sundeck 2010 — Same Brand, Different Boat
The Sea Ray 185 Outboard Sport 2005 vs Sea Ray 300 Sundeck 2010 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 300 Sundeck 2010 measures 29,5 feet overall (2010), giving it roughly 11,5 additional feet of deck space compared to the Sea Ray 185 Outboard Sport 2005 at 18,0 feet (2005). Weight tells a clearer story for trailering families: the Sea Ray 300 Sundeck 2010 tips the scales at 6 044 lbs — 5 859 lbs less than the Sea Ray 185 Outboard Sport 2005 at 185 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 300 Sundeck 2010 tops out at 425 hp. Engine specs for the Sea Ray 185 Outboard Sport 2005 aren't listed — confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the Sea Ray 300 Sundeck 2010 carries 93 gallons versus 2 gallons in the Sea Ray 185 Outboard Sport 2005. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
Both boats are rated for 8 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.
Bottom line: The Sea Ray 300 Sundeck 2010 at 29,5 ft is the right call if deck space, comfort, and entertaining are top of your list. The Sea Ray 185 Outboard Sport 2005 at 18,0 ft wins on trailering ease, likely lower purchase price, and simpler docking — a solid choice for a buyer who wants more boat for less money.
General Boat Info
Model185 Outboard Sport
Model300 Sundeck?
Model Year2005
Model Year201
Measurements / Dimensions
Beam76 in. (2.29 m)
Beam9 ft. 1 in. (2.76 m)
Beam - Meters1.93
Beam - Meters2.77
Beam - Inches76
Beam - Inches109
Deadrise19℃
Deadrise21℃
Draft [drive up] - Detail12 in. (30.5 cm)
Draft [drive up] - Detail23 in. (58 cm)
Draft [drive up] meters0.3
Draft [drive up] meters0.58
Draft [drive up] inches12
Draft [drive up] inches23
Draft [max] - Detail30 in. (76.2 cm)
Draft [max] - Detail39 in. (99 cm)
Draft [max] - Meters0.76
Draft [max] - Meters0.99
Draft [max] - Inches3
Draft [max] - Inches39
Weight - Detail1,850 lbs. (839 kg)
Weight - Detail6,044 lbs. (2,741 kg)
Weight - kg839.15
Weight - kg2741.51
Weight - lbs.185
Weight - lbs.6044
Length - Meters5.49
Length - Metersnot available
Length - Feet18
Length - Feet29.5
Length overall - Detail18 ft. 0 in. (5.49 m)
Length overall - Detail29 ft. 6 in. (8.99 m)
Length overall - Meters5.49
Length overall - Meters8.99
Length overall - Inches216
Length overall - Inches354
Engine and Drivetrain
Engine/s standardMercury? 115 2-Stroke (115 hp - 86 kw)
Engine/s standardMX6.2 MPI Bravo? III DTS
Fuel tank capacity - Detail20 gal. (75.7 l)
Fuel tank capacity - Detail93 gal. (352 l)
Fuel tank capacity - Liters75.71
Fuel tank capacity - Liters352.04
Fuel tank capacity - Gal2
Fuel tank capacity - Gal93
Drive typeOutboard
Drive typeI/O
Engine makenot available
Engine makeMerCruiser®
Fuel typenot available
Fuel typeGas
Horsepowernot available
Horsepower320 hp (239 kW)
Engine maxnot available
Engine max425 hp (317 kW)
Operational Info
Maximum capacity1,700 lbs. (771 kg)
Maximum capacitynot available
Maximum people8
Maximum peoplenot available
Water capacitynot available
Water capacity24 gal. (91 l)
Holding tank capacity - Detailnot available
Holding tank capacity - DetailOptional: 10 gal. (38 l)
Holding tank capacity - Litersnot available
Holding tank capacity - Liters37.85
Holding tank capacity - Galnot available
Holding tank capacity - Gal1
Body / Hull
Hull materialnot available
Hull materialFiberglass
Hull typenot available
Hull typeModified Vee