Tiara Yachts 3900 Open 2010 boat specs
Tiara Yachts
Tiara Yachts 3900 Open 2010
2010
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Tiara Yachts EX 54 2023 boat specs
Tiara Yachts
Tiara Yachts EX 54 2023
2023
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Tiara Yachts 3900 Open 2010 vs Tiara Yachts EX 54 2023 — Same Brand, Different Boat

The Tiara Yachts 3900 Open 2010 vs Tiara Yachts EX 54 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.

Size is the most obvious dividing line here. The Tiara Yachts EX 54 2023 measures 54,3 feet overall (2023), giving it roughly 12,4 additional feet of deck space compared to the Tiara Yachts 3900 Open 2010 at 41,9 feet (2010). Weight tells a clearer story for trailering families: the Tiara Yachts EX 54 2023 tips the scales at 48 400 lbs — 48 155 lbs less than the Tiara Yachts 3900 Open 2010 at 245 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 Tiara Yachts EX 54 2023 tops out at 600 hp. Engine specs for the Tiara Yachts 3900 Open 2010 aren't listed — confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the Tiara Yachts 3900 Open 2010 carries 535 gallons versus 65 gallons in the Tiara Yachts EX 54 2023. 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 Tiara Yachts EX 54 2023 is rated for 16 passengers, while the Tiara Yachts 3900 Open 2010 caps at 12. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Tiara Yachts EX 54 2023 could be the deciding factor.

Bottom line: Choose the Tiara Yachts EX 54 2023 if your priority is putting more people on the water — it handles 16 passengers and at 54,3 ft it has the deck room to back that rating up comfortably. The Tiara Yachts 3900 Open 2010 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 12 that costs less to run day-to-day.
General Boat Info
MakeTiara Yachts
Makenot available
Model3900 Open
Modelnot available
Model Year201
Model Yearnot available
Measurements / Dimensions
Beam15 ft. 0 in. (4.57 m)
Beam11.50 ft
Beam - Meters4.57
Beam - Meters3.51
Beam - Inches18
Beam - Inches138
Deadrise18℃
Deadrisenot available
Draft [max] - Detail3 ft. 6 in. (1.06 m) with props
Draft [max] - Detail4.40 ft
Draft [max] - Meters1.07
Draft [max] - Meters1.34
Draft [max] - Inches42
Draft [max] - Inches53
Weight - Detail24,500 lbs. (11,113 kg)
Weight - Detailnot available
Weight - kg11113
Weight - kgnot available
Weight - lbs.245
Weight - lbs.not available
Height - Detail9 ft. 7 in. (2.92 m) from waterline to top of windshield 10 ft. 4 in. (3.15 m) from waterline to top of optional hardtop
Height - Detailnot available
Height - Meters3.15
Height - Metersnot available
Height - Inches124
Height - Inchesnot available
Length - Feet41.92
Length - Feet54.3
Length overall - Detail39 ft. 3 in. (11.96 m) without standard pulpit 41 ft. 11 in. (12.77 m) with standard pulpit
Length overall - Detail54.30 ft
Length overall - Meters12.78
Length overall - Meters16.55
Length overall - Inches503
Length overall - Inches652
Displacementnot available
Displacement48400.00 lbs
Body / Hull
Hull materialFiberglass
Hull materialnot available
Hull typeModified Vee
Hull typenot available
Engine and Drivetrain
Engine/s standardTwin Cummins? QSC, 550 hp
Engine/s standardnot available
Fuel tank capacity - Detail535 gal. (2,025.2 l)
Fuel tank capacity - Detailnot available
Fuel tank capacity - Liters2025.19
Fuel tank capacity - Liters2460.52
Fuel tank capacity - Gal535
Fuel tank capacity - Gal65
Fuel typeDiesel
Fuel typenot available
Drive typeInboard - Twin
Drive typeoutboard
Battery12V 2-bank battery system with batteries and battery switches (3 engine batteries, 3 house batteries)
Batterynot available
Engine makenot available
Engine makeMercury
Horsepowernot available
Horsepower600 hp
Operational Info
HeadFull fiberglass
Head2
Sleeping capacity5
Sleeping capacity4
Water capacity120 gal. (454.25 l)
Water capacity135
Holding tank capacity - Detail38 gal. (143.85 l)
Holding tank capacity - Detailnot available
Holding tank capacity - Liters143.85
Holding tank capacity - Liters257.41
Holding tank capacity - Gal38
Holding tank capacity - Gal68
Cabinsnot available
Cabins2
Boat typenot available
Boat typePower

Tiara Yachts 3900 Open 2010 vs Tiara Yachts EX 54 2023 — Common Questions

Which is the larger boat — the Tiara Yachts 3900 Open 2010 or the Tiara Yachts EX 54 2023?
The Tiara Yachts EX 54 2023 is the longer of the two at 54,3 feet overall. The Tiara Yachts 3900 Open 2010 comes in at 41,9 feet, making it roughly 12,4 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Tiara Yachts 3900 Open 2010 or the Tiara Yachts EX 54 2023?
For trailering, the Tiara Yachts 3900 Open 2010 has the edge at 245 lbs dry weight versus 48 400 lbs for the Tiara Yachts EX 54 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.
What is the maximum horsepower rating for these boats?
The Tiara Yachts EX 54 2023 has a documented max rating of 600 hp. Engine specifications for the Tiara Yachts 3900 Open 2010 were not available in our database — check the OEM spec sheet or manufacturer's website for confirmation.
How many people can each boat hold?
The Tiara Yachts 3900 Open 2010 is Coast Guard rated for 12 passengers, while the Tiara Yachts EX 54 2023 is certified for 16. 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 Tiara Yachts EX 54 2023 measures 138" wide, compared to 18" for the Tiara Yachts 3900 Open 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 Tiara Yachts 3900 Open 2010 or the Tiara Yachts EX 54 2023?
The Tiara Yachts 3900 Open 2010 has the bigger tank at 535 gallons, versus 65 gallons on the Tiara Yachts EX 54 2023. That 470-gallon difference translates to roughly 1410–2350 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Tiara Yachts 3900 Open 2010 and Tiara Yachts EX 54 2023 from the same manufacturer?
Yes — both the Tiara Yachts 3900 Open 2010 and the Tiara Yachts EX 54 2023 are built by Tiara Yachts. 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.