Sea Ray 310 Sundancer 2009 boat specs
Sea Ray
Sea Ray 310 Sundancer 2009
2009
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VS
Sea Ray Sundancer 320 Outboard 2023 boat specs
Sea Ray
Sea Ray Sundancer 320 Outboard 2023
2023
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Sea Ray 310 Sundancer 2009 vs Sea Ray Sundancer 320 Outboard 2023 — Same Brand, Different Boat

The Sea Ray 310 Sundancer 2009 vs Sea Ray Sundancer 320 Outboard 2023 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.

On paper these two are close siblings in the size department — Sea Ray 310 Sundancer 2009 at 33,3 ft versus Sea Ray Sundancer 320 Outboard 2023 at 34,1 ft. Weight tells a clearer story for trailering families: the Sea Ray Sundancer 320 Outboard 2023 tips the scales at 13 681 lbs — 13 667 lbs less than the Sea Ray 310 Sundancer 2009 at 14 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 350 hp, the Sea Ray Sundancer 320 Outboard 2023 has a 30-hp advantage over the Sea Ray 310 Sundancer 2009's 320-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 Sundancer 320 Outboard 2023 carries 158 gallons versus 2 gallons in the Sea Ray 310 Sundancer 2009. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 10 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: Performance buyers should lean toward the Sea Ray Sundancer 320 Outboard 2023 and its 350-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Sea Ray 310 Sundancer 2009 with its 320-hp rating is the more economical daily driver.
General Boat Info
MakeSea Ray
Makenot available
Model310 Sundancer?
Modelnot available
Model Year2009
Model Yearnot available
Measurements / Dimensions
Beam10 ft. 5 in. (3.18 m)
Beam10.70 ft
Beam - Meters3.18
Beam - Meters3.26
Beam - Inches125
Beam - Inches128
Deadrise21℃
Deadrisenot available
Draft [drive up] - Detail29 in. (73.66 cm)
Draft [drive up] - Detailnot available
Draft [drive up] meters0.74
Draft [drive up] metersnot available
Draft [drive up] inches29
Draft [drive up] inchesnot available
Draft [max] - Detail39 in. (99.06 cm) Inboards: 35 in. (88.9 cm)
Draft [max] - Detail4.40 ft
Draft [max] - Meters0.99
Draft [max] - Meters1.34
Draft [max] - Inches39
Draft [max] - Inches53
Weight - Detail14,000 lbs. (6,350 kg)
Weight - Detailnot available
Weight - kg6350.29
Weight - kgnot available
Weight - lbs.14
Weight - lbs.not available
Length - Feet33.33
Length - Feet34.11
Length overall - Detail33 ft. 4 in. (10.16 m)
Length overall - Detail34.11 ft
Length overall - Meters10.16
Length overall - Meters10.4
Length overall - Inches4
Length overall - Inches409
Draft Minnot available
Draft Min3.20 ft
Displacementnot available
Displacement13681.00 lbs
Body / Hull
Hull materialFiberglass
Hull materialnot available
Hull typeDeep Vee
Hull typenot available
Engine and Drivetrain
Engine makeMerCruiser®
Engine makeMercury
Engine/s standardT-5.0L MPI Bravo? III DTS
Engine/s standardnot available
Fuel tank capacity - Detail200 gal. (757 l)
Fuel tank capacity - Detailnot available
Fuel tank capacity - Liters757.08
Fuel tank capacity - Liters598.09
Fuel tank capacity - Gal2
Fuel tank capacity - Gal158
Fuel typeGas or Diesel
Fuel typenot available
Drive typeI/O - Twin
Drive typeoutboard
HorsepowerTwin 260 hp (194 kW)
Horsepower350 hp
Engine maxTwin 320 hp (239 kW)
Engine maxnot available
Engine modelnot available
Engine model350 Verado
Engine 2 Engine Makenot available
Engine 2 Engine MakeMercury
Engine 2 Engine Modelnot available
Engine 2 Engine Model350 Verado
Engine 2 Horsepowernot available
Engine 2 Horsepower350 hp
Engine 2 Drive Typenot available
Engine 2 Drive Typeoutboard
Operational Info
Water capacity35 gal. (132.5 l)
Water capacitynot available
Holding tank capacity - Detail28 gal. (106 l)
Holding tank capacity - Detailnot available
Holding tank capacity - Liters105.99
Holding tank capacity - Litersnot available
Holding tank capacity - Gal28
Holding tank capacity - Galnot available
Boat typenot available
Boat typePower

Sea Ray 310 Sundancer 2009 vs Sea Ray Sundancer 320 Outboard 2023 — Common Questions

Which is the larger boat — the Sea Ray 310 Sundancer 2009 or the Sea Ray Sundancer 320 Outboard 2023?
The Sea Ray Sundancer 320 Outboard 2023 is the longer of the two at 34,1 feet overall. The Sea Ray 310 Sundancer 2009 comes in at 33,3 feet, making it roughly 0,8 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Sea Ray 310 Sundancer 2009 or the Sea Ray Sundancer 320 Outboard 2023?
For trailering, the Sea Ray 310 Sundancer 2009 has the edge at 14 lbs dry weight versus 13 681 lbs for the Sea Ray Sundancer 320 Outboard 2023. 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 Sundancer 320 Outboard 2023 is rated to a maximum of 350 hp, giving it the larger power ceiling. The Sea Ray 310 Sundancer 2009 tops out at 320 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 310 Sundancer 2009 is Coast Guard rated for 10 passengers, while the Sea Ray Sundancer 320 Outboard 2023 is certified for 10. 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 Sundancer 320 Outboard 2023 measures 128" wide, compared to 125" for the Sea Ray 310 Sundancer 2009. 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 310 Sundancer 2009 or the Sea Ray Sundancer 320 Outboard 2023?
The Sea Ray Sundancer 320 Outboard 2023 has the bigger tank at 158 gallons, versus 2 gallons on the Sea Ray 310 Sundancer 2009. That 156-gallon difference translates to roughly 468–780 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Sea Ray 310 Sundancer 2009 and Sea Ray Sundancer 320 Outboard 2023 from the same manufacturer?
Yes — both the Sea Ray 310 Sundancer 2009 and the Sea Ray Sundancer 320 Outboard 2023 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.