Sealine S430 2021 boat specs
Sealine
Sealine S430 2021
2021
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VS
Sealine T50 2011 boat specs
Sealine
Sealine T50 2011
2011
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Sealine S430 2021 vs Sealine T50 2011 — Same Brand, Different Boat

The Sealine S430 2021 vs Sealine T50 2011 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 Sealine T50 2011 measures 50,5 feet overall (2011), giving it roughly 6,0 additional feet of deck space compared to the Sealine S430 2021 at 44,5 feet (2021). Weight tells a clearer story for trailering families: the Sealine T50 2011 tips the scales at 56 879 lbs — 29 630 lbs less than the Sealine S430 2021 at 27 249 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 575 hp, the Sealine T50 2011 has a 75-hp advantage over the Sealine S430 2021's 500-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 T50 2011 carries 549 gallons versus 198 gallons in the Sealine S430 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 T50 2011 is rated for 15 passengers, while the Sealine S430 2021 caps at 13. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sealine T50 2011 could be the deciding factor.

Bottom line: Choose the Sealine T50 2011 if your priority is putting more people on the water — it handles 15 passengers and at 50,5 ft it has the deck room to back that rating up comfortably. The Sealine S430 2021 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 13 that costs less to run day-to-day.
Measurements / Dimensions
Length overall - Detail44.50 ft
Length overall - Detail50.50 ft
Length - Feet44.5
Length - Feet50.5
Length overall - Meters13.56
Length overall - Meters15.39
Length overall - Inches534
Length overall - Inches606
Beam13.90 ft
Beam15.12 ft
Beam - Meters4.24
Beam - Meters4.61
Beam - Inches167
Beam - Inches181
Draft [max] - Detail3.50 ft
Draft [max] - Detail3.70 ft
Draft [max] - Meters1.07
Draft [max] - Meters1.13
Draft [max] - Inches42
Draft [max] - Inches44
Displacement27249.00 lbs
Displacement56879.00 lbs
Engine and Drivetrain
Fuel tank capacity - Gal198
Fuel tank capacity - Gal549.4
Fuel tank capacity - Liters749.51
Fuel tank capacity - Liters2079.7
Engine makeVolvo Penta
Engine makeVolvo Penta
Engine modelIPS 5
Engine modelD9-575
Horsepower500 hp
Horsepower575 hp
Fuel typeDiesel
Fuel typeDiesel
Drive typeinboard
Drive typeinboard
Engine 2 Engine MakeVolvo Penta
Engine 2 Engine MakeVolvo Penta
Engine 2 Engine ModelIPS 5
Engine 2 Engine ModelD9-575
Engine 2 Horsepower500 hp
Engine 2 Horsepower575 hp
Engine 2 Fuel TypeDiesel
Engine 2 Fuel TypeDiesel
Engine 2 Drive Typeinboard
Engine 2 Drive Typeinboard
Performance
Cruising speed28
Cruising speed22
Cruising speed measureknots
Cruising speed measureknots
Maximum speed34
Maximum speed30
Maximum speed measureknots
Maximum speed measureknots
Operational Info
Sleeping capacity4
Sleeping capacity6
Cabins2
Cabins3
Head1
Head2
Water capacity71
Water capacity136.5
Boat typePower
Boat typePower

Sealine S430 2021 vs Sealine T50 2011 — Common Questions

Which is the larger boat — the Sealine S430 2021 or the Sealine T50 2011?
The Sealine T50 2011 is the longer of the two at 50,5 feet overall. The Sealine S430 2021 comes in at 44,5 feet, making it roughly 6,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Sealine S430 2021 or the Sealine T50 2011?
For trailering, the Sealine S430 2021 has the edge at 27 249 lbs dry weight versus 56 879 lbs for the Sealine T50 2011. 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 Sealine T50 2011 is rated to a maximum of 575 hp, giving it the larger power ceiling. The Sealine S430 2021 tops out at 500 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 S430 2021 is Coast Guard rated for 13 passengers, while the Sealine T50 2011 is certified for 15. 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 T50 2011 measures 181" wide, compared to 167" for the Sealine S430 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 S430 2021 or the Sealine T50 2011?
The Sealine T50 2011 has the bigger tank at 549 gallons, versus 198 gallons on the Sealine S430 2021. That 351-gallon difference translates to roughly 1054–1757 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Sealine S430 2021 and Sealine T50 2011 from the same manufacturer?
Yes — both the Sealine S430 2021 and the Sealine T50 2011 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.