Sea Ray SLX 310 2022 boat specs
Sea Ray
Sea Ray SLX 310 2022
2022
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VS
Sea Ray Sundeck 220 2010 boat specs
Sea Ray
Sea Ray Sundeck 220 2010
2010
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Sea Ray SLX 310 2022 vs Sea Ray Sundeck 220 2010: Same Brand, Different Boat

The Sea Ray SLX 310 2022 vs Sea Ray Sundeck 220 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.

Both boats share a closely matched power ceiling - 250 hp for the Sea Ray SLX 310 2022 and 260 hp for the Sea Ray Sundeck 220 2010. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup. Fuel capacity breaks the other way: the Sea Ray SLX 310 2022 carries 130 gallons versus 50 gallons in the Sea Ray Sundeck 220 2010. 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 SLX 310 2022 is rated for 9 passengers, while the Sea Ray Sundeck 220 2010 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sea Ray SLX 310 2022 could be the deciding factor.

Bottom line: Choose the Sea Ray SLX 310 2022 if your priority is putting more people on the water - it handles 9 passengers and at 31,6 ft it has the deck room to back that rating up comfortably. The Sea Ray Sundeck 220 2010 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.
Measurements / Dimensions
Length overall - Detail31.60 ft
Length overall - Detail22.00 ft
Length - Feet31.6
Length - Feet22
Length overall - Meters9.63
Length overall - Meters6.71
Length overall - Inches379
Length overall - Inches264
Beam10.20 ft
Beam8.60 ft
Beam - Meters3.11
Beam - Meters2.62
Beam - Inches122
Beam - Inches103
Draft [max] - Detail3.80 ft
Draft [max] - Detailnot available
Draft [max] - Meters1.16
Draft [max] - Metersnot available
Draft [max] - Inches46
Draft [max] - Inchesnot available
Draft Min2.80 ft
Draft Minnot available
Displacement10787.00 lbs
Displacementnot available
Engine and Drivetrain
Fuel tank capacity - Gal130
Fuel tank capacity - Gal50
Fuel tank capacity - Liters492.1
Fuel tank capacity - Liters189.27
Engine makeMercruiser
Engine makeMercruiser
Engine model4.5L MPI ECTBravo
Engine model5.0L MPI Alpha I MCM
Horsepower250 hp
Horsepower260 hp
Fuel typeGas
Fuel typeGas
Engine 2 Engine MakeMercruiser
Engine 2 Engine Makenot available
Engine 2 Engine Model4.5L MPI ECTBravo
Engine 2 Engine Modelnot available
Engine 2 Horsepower250 hp
Engine 2 Horsepowernot available
Engine 2 Fuel TypeGas
Engine 2 Fuel Typenot available
Operational Info
Head1
Headnot available
Water capacity24
Water capacity10
Boat typePower
Boat typePower
Trailerablenot available
TrailerableYes

Sea Ray SLX 310 2022 vs Sea Ray Sundeck 220 2010 - Common Questions

Which is the larger boat - the Sea Ray SLX 310 2022 or the Sea Ray Sundeck 220 2010?
The Sea Ray SLX 310 2022 is the longer of the two at 31,6 feet overall. The Sea Ray Sundeck 220 2010 comes in at 22,0 feet, making it roughly 9,6 ft shorter - a meaningful difference in deck room and overall on-water presence.
Which boat can handle a bigger outboard?
The Sea Ray Sundeck 220 2010 is rated to a maximum of 260 hp, giving it the larger power ceiling. The Sea Ray SLX 310 2022 tops out at 250 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 310 2022 is Coast Guard rated for 9 passengers, while the Sea Ray Sundeck 220 2010 is certified for 6. 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 310 2022 measures 122" wide, compared to 103" for the Sea Ray Sundeck 220 2010. 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 SLX 310 2022 or the Sea Ray Sundeck 220 2010?
The Sea Ray SLX 310 2022 has the bigger tank at 130 gallons, versus 50 gallons on the Sea Ray Sundeck 220 2010. That 80-gallon difference translates to roughly 240–400 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Sea Ray SLX 310 2022 and Sea Ray Sundeck 220 2010 from the same manufacturer?
Yes - both the Sea Ray SLX 310 2022 and the Sea Ray Sundeck 220 2010 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.