Sea Ray SDX 290 Outboard 2022 boat specs
Sea Ray
Sea Ray SDX 290 Outboard 2022
2022
View full specs →
VS
Sea Ray Sundancer 350 Coupe 2021 boat specs
Sea Ray
Sea Ray Sundancer 350 Coupe 2021
2021
View full specs →

Sea Ray SDX 290 Outboard 2022 vs Sea Ray Sundancer 350 Coupe 2021 — Same Brand, Different Boat

The Sea Ray SDX 290 Outboard 2022 vs Sea Ray Sundancer 350 Coupe 2021 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 Sundancer 350 Coupe 2021 measures 35,1 feet overall (2021), giving it roughly 3,9 additional feet of deck space compared to the Sea Ray SDX 290 Outboard 2022 at 31,2 feet (2022). Weight tells a clearer story for trailering families: the Sea Ray Sundancer 350 Coupe 2021 tips the scales at 18 792 lbs — 11 762 lbs less than the Sea Ray SDX 290 Outboard 2022 at 7 030 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 350 Coupe 2021 has a 150-hp advantage over the Sea Ray SDX 290 Outboard 2022's 200-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 350 Coupe 2021 carries 214 gallons versus 13 gallons in the Sea Ray SDX 290 Outboard 2022. 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 Sundancer 350 Coupe 2021 is rated for 10 passengers, while the Sea Ray SDX 290 Outboard 2022 caps at 9. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sea Ray Sundancer 350 Coupe 2021 could be the deciding factor.

Bottom line: Choose the Sea Ray Sundancer 350 Coupe 2021 if your priority is putting more people on the water — it handles 10 passengers and at 35,1 ft it has the deck room to back that rating up comfortably. The Sea Ray SDX 290 Outboard 2022 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 9 that costs less to run day-to-day.
Measurements / Dimensions
Length overall - Detail31.20 ft
Length overall - Detail35.11 ft
Length - Feet31.2
Length - Feet35.11
Length overall - Meters9.51
Length overall - Meters10.7
Length overall - Inches374
Length overall - Inches421
Beam9.30 ft
Beam11.40 ft
Beam - Meters2.83
Beam - Meters3.47
Beam - Inches112
Beam - Inches137
Draft [max] - Detail3.80 ft
Draft [max] - Detail4.00 ft
Draft [max] - Meters1.16
Draft [max] - Meters1.22
Draft [max] - Inches46
Draft [max] - Inches48
Draft Min2.10 ft
Draft Min3.00 ft
Displacement7030.00 lbs
Displacement18792.00 lbs
Engine and Drivetrain
Fuel tank capacity - Gal13
Fuel tank capacity - Gal214
Fuel tank capacity - Liters492.1
Fuel tank capacity - Liters810.08
Engine makeMercury
Engine makeMercruiser
Engine model200HP FourStroke
Engine model6.2L MPI ECT Bravo
Horsepower200 hp
Horsepower350 hp
Fuel typeGas
Fuel typenot available
Drive typeoutboard
Drive typenot available
Engine 2 Engine MakeMercury
Engine 2 Engine MakeMercruiser
Engine 2 Engine Model200HP FourStroke
Engine 2 Engine Model6.2L MPI ECT Bravo
Engine 2 Horsepower200 hp
Engine 2 Horsepower350 hp
Engine 2 Fuel TypeGas
Engine 2 Fuel Typenot available
Engine 2 Drive Typeoutboard
Engine 2 Drive Typenot available
Operational Info
Water capacity2
Water capacitynot available
Boat typePower
Boat typePower
Sleeping capacitynot available
Sleeping capacity4
Headnot available
Head1

Sea Ray SDX 290 Outboard 2022 vs Sea Ray Sundancer 350 Coupe 2021 — Common Questions

Which is the larger boat — the Sea Ray SDX 290 Outboard 2022 or the Sea Ray Sundancer 350 Coupe 2021?
The Sea Ray Sundancer 350 Coupe 2021 is the longer of the two at 35,1 feet overall. The Sea Ray SDX 290 Outboard 2022 comes in at 31,2 feet, making it roughly 3,9 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Sea Ray SDX 290 Outboard 2022 or the Sea Ray Sundancer 350 Coupe 2021?
For trailering, the Sea Ray SDX 290 Outboard 2022 has the edge at 7 030 lbs dry weight versus 18 792 lbs for the Sea Ray Sundancer 350 Coupe 2021. 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 350 Coupe 2021 is rated to a maximum of 350 hp, giving it the larger power ceiling. The Sea Ray SDX 290 Outboard 2022 tops out at 200 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 SDX 290 Outboard 2022 is Coast Guard rated for 9 passengers, while the Sea Ray Sundancer 350 Coupe 2021 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 350 Coupe 2021 measures 137" wide, compared to 112" for the Sea Ray SDX 290 Outboard 2022. 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 SDX 290 Outboard 2022 or the Sea Ray Sundancer 350 Coupe 2021?
The Sea Ray Sundancer 350 Coupe 2021 has the bigger tank at 214 gallons, versus 13 gallons on the Sea Ray SDX 290 Outboard 2022. That 201-gallon difference translates to roughly 603–1005 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Sea Ray SDX 290 Outboard 2022 and Sea Ray Sundancer 350 Coupe 2021 from the same manufacturer?
Yes — both the Sea Ray SDX 290 Outboard 2022 and the Sea Ray Sundancer 350 Coupe 2021 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.