Sealine S335 2021 boat specs
Sealine
Sealine S335 2021
2021
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VS
Sealine SC38 2007 boat specs
Sealine
Sealine SC38 2007
2007
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Sealine S335 2021 vs Sealine SC38 2007 — Same Brand, Different Boat

The Sealine S335 2021 vs Sealine SC38 2007 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.

The power gap is worth calling out. Rated to 400 hp, the Sealine S335 2021 has a 90-hp advantage over the Sealine SC38 2007's 310-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Sealine SC38 2007 carries 179 gallons versus 125 gallons in the Sealine S335 2021. 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 Sealine SC38 2007 is rated for 11 passengers, while the Sealine S335 2021 caps at 10. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sealine SC38 2007 could be the deciding factor.

Bottom line: Choose the Sealine SC38 2007 if your priority is putting more people on the water — it handles 11 passengers and at 37,0 ft it has the deck room to back that rating up comfortably. The Sealine S335 2021 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 10 that costs less to run day-to-day.
Measurements / Dimensions
Length overall - Detail33.10 ft
Length overall - Detail37.00 ft
Length - Feet33.1
Length - Feet37
Length overall - Meters10.09
Length overall - Meters11.28
Length overall - Inches397
Length overall - Inches444
Beam11.60 ft
Beam12.30 ft
Beam - Meters3.54
Beam - Meters3.75
Beam - Inches139
Beam - Inches148
Draft [max] - Detail3.30 ft
Draft [max] - Detail3.10 ft
Draft [max] - Meters1.01
Draft [max] - Meters0.94
Draft [max] - Inches40
Draft [max] - Inches37
Displacement13536.00 lbs
Displacementnot available
Engine and Drivetrain
Fuel tank capacity - Gal125
Fuel tank capacity - Gal179
Fuel tank capacity - Liters473.18
Fuel tank capacity - Liters677.59
Engine makeVolvo Penta
Engine makeVolvo Penta
Engine modelD6
Engine modelD6-31
Horsepower400 hp
Horsepower310 hp
Fuel typeDiesel
Fuel typeDiesel
Drive typeinboard
Drive typeinboard
Engine 2 Engine Makenot available
Engine 2 Engine MakeVolvo Penta
Engine 2 Engine Modelnot available
Engine 2 Engine ModelD6-31
Engine 2 Horsepowernot available
Engine 2 Horsepower310 hp
Engine 2 Fuel Typenot available
Engine 2 Fuel TypeDiesel
Engine 2 Drive Typenot available
Engine 2 Drive Typeinboard
Performance
Maximum speed28
Maximum speed34
Maximum speed measureknots
Maximum speed measureknots
Cruising speednot available
Cruising speed32
Cruising speed measurenot available
Cruising speed measureknots
Operational Info
Sleeping capacity4
Sleeping capacity6
Cabins2
Cabins2
Head1
Head1
Water capacity48
Water capacity72.3
Boat typePower
Boat typePower

Sealine S335 2021 vs Sealine SC38 2007 — Common Questions

Which is the larger boat — the Sealine S335 2021 or the Sealine SC38 2007?
The Sealine SC38 2007 is the longer of the two at 37,0 feet overall. The Sealine S335 2021 comes in at 33,1 feet, making it roughly 3,9 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which boat can handle a bigger outboard?
The Sealine S335 2021 is rated to a maximum of 400 hp, giving it the larger power ceiling. The Sealine SC38 2007 tops out at 310 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 Sealine S335 2021 is Coast Guard rated for 10 passengers, while the Sealine SC38 2007 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 Sealine SC38 2007 measures 148" wide, compared to 139" for the Sealine S335 2021. 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 Sealine S335 2021 or the Sealine SC38 2007?
The Sealine SC38 2007 has the bigger tank at 179 gallons, versus 125 gallons on the Sealine S335 2021. That 54-gallon difference translates to roughly 162–270 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Sealine S335 2021 and Sealine SC38 2007 from the same manufacturer?
Yes — both the Sealine S335 2021 and the Sealine SC38 2007 are built by Sealine. 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.