Sea Ray SLX 400 2023 boat specs
Sea Ray
Sea Ray SLX 400 2023
2023
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VS
Sea Ray Sundancer 370  2023 boat specs
Sea Ray
Sea Ray Sundancer 370 2023
2023
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Sea Ray SLX 400 2023 vs Sea Ray Sundancer 370 2023 — Same Brand, Different Boat

The Sea Ray SLX 400 2023 vs Sea Ray Sundancer 370 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 SLX 400 2023 at 39,6 ft versus Sea Ray Sundancer 370 2023 at 37,2 ft. At 20 794 lbs and 20 800 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.

The power gap is worth calling out. Rated to 380 hp, the Sea Ray SLX 400 2023 has a 80-hp advantage over the Sea Ray Sundancer 370 2023's 300-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads — 25 gal and 25 gal — so range won't be a tiebreaker here.

For family outings this is probably the sharpest distinction between the two. The Sea Ray SLX 400 2023 is rated for 12 passengers, while the Sea Ray Sundancer 370 2023 caps at 11. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sea Ray SLX 400 2023 could be the deciding factor.

Bottom line: Choose the Sea Ray SLX 400 2023 if your priority is putting more people on the water — it handles 12 passengers and at 39,6 ft it has the deck room to back that rating up comfortably. The Sea Ray Sundancer 370 2023 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 11 that costs less to run day-to-day.
Measurements / Dimensions
Length overall - Detail39.60 ft
Length overall - Detail37.20 ft
Length - Feet39.6
Length - Feet37.2
Length overall - Meters12.07
Length overall - Meters11.34
Length overall - Inches475
Length overall - Inches446
Beam12.10 ft
Beam12.00 ft
Beam - Meters3.69
Beam - Meters3.66
Beam - Inches145
Beam - Inches144
Draft [max] - Detail4.40 ft
Draft [max] - Detail4.20 ft
Draft [max] - Meters1.34
Draft [max] - Meters1.28
Draft [max] - Inches53
Draft [max] - Inches50
Draft Min3.30 ft
Draft Min3.10 ft
Displacement20794.00 lbs
Displacement20800.00 lbs
Engine and Drivetrain
Fuel tank capacity - Gal25
Fuel tank capacity - Gal25
Fuel tank capacity - Liters946.35
Fuel tank capacity - Liters946.35
Engine makeMercruiser
Engine makeMercruiser
Engine model8.2 MAG ECTBravo
Engine model8.2L MAG HO ECT SeaCore Bravo
Horsepower380 hp
Horsepower300 hp
Fuel typeGas
Fuel typeGas
Engine 2 Engine MakeMercruiser
Engine 2 Engine MakeMercruiser
Engine 2 Engine Model8.2 MAG ECTBravo
Engine 2 Engine Model8.2L MAG HO ECT SeaCore Bravo
Engine 2 Horsepower380 hp
Engine 2 Horsepower300 hp
Drive typenot available
Drive typeoutboard
Engine 2 Fuel Typenot available
Engine 2 Fuel TypeGas
Engine 2 Drive Typenot available
Engine 2 Drive Typeinboard
Operational Info
Sleeping capacity4
Sleeping capacity4
Cabins1
Cabinsnot available
Head1
Head1
Water capacity5
Water capacity46
Boat typePower
Boat typePower

Sea Ray SLX 400 2023 vs Sea Ray Sundancer 370 2023 — Common Questions

Which is the larger boat — the Sea Ray SLX 400 2023 or the Sea Ray Sundancer 370 2023?
The Sea Ray SLX 400 2023 is the longer of the two at 39,6 feet overall. The Sea Ray Sundancer 370 2023 comes in at 37,2 feet, making it roughly 2,4 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Sea Ray SLX 400 2023 or the Sea Ray Sundancer 370 2023?
For trailering, the Sea Ray SLX 400 2023 has the edge at 20 794 lbs dry weight versus 20 800 lbs for the Sea Ray Sundancer 370 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 SLX 400 2023 is rated to a maximum of 380 hp, giving it the larger power ceiling. The Sea Ray Sundancer 370 2023 tops out at 300 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 SLX 400 2023 is Coast Guard rated for 12 passengers, while the Sea Ray Sundancer 370 2023 is certified for 11. 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 SLX 400 2023 measures 145" wide, compared to 144" for the Sea Ray Sundancer 370 2023. 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.
How do the fuel tanks compare on the Sea Ray SLX 400 2023 and Sea Ray Sundancer 370 2023?
Both boats carry similar fuel loads — 25 gallons and 25 gallons respectively. Range will depend heavily on motor choice, throttle usage, and whether you're on flat lake water or coastal chop.
Are the Sea Ray SLX 400 2023 and Sea Ray Sundancer 370 2023 from the same manufacturer?
Yes — both the Sea Ray SLX 400 2023 and the Sea Ray Sundancer 370 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.