Sea Ray 420 Sedan Bridge 2005 boat specs
Sea Ray
Sea Ray 420 Sedan Bridge 2005
2005
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VS
Sea Ray Sedan Bridge 450 2012 boat specs
Sea Ray
Sea Ray Sedan Bridge 450 2012
2012
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Sea Ray 420 Sedan Bridge 2005 vs Sea Ray Sedan Bridge 450 2012 — Same Brand, Different Boat

The Sea Ray 420 Sedan Bridge 2005 vs Sea Ray Sedan Bridge 450 2012 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 420 Sedan Bridge 2005 at 45,0 ft versus Sea Ray Sedan Bridge 450 2012 at 45,0 ft. Weight tells a clearer story for trailering families: the Sea Ray Sedan Bridge 450 2012 tips the scales at 36 602 lbs — 36 317 lbs less than the Sea Ray 420 Sedan Bridge 2005 at 285 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 Sea Ray Sedan Bridge 450 2012 tops out at 480 hp. Engine specs for the Sea Ray 420 Sedan Bridge 2005 aren't listed — confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the Sea Ray Sedan Bridge 450 2012 carries 375 gallons versus 35 gallons in the Sea Ray 420 Sedan Bridge 2005. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 13 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.

Bottom line: The Sea Ray 420 Sedan Bridge 2005 and Sea Ray Sedan Bridge 450 2012 are closely matched on the specs that matter most. Test-ride both on the water you actually use, check current dealer pricing, and factor in long-term service access before you sign.
General Boat Info
MakeSea Ray
Makenot available
Model420 Sedan Bridge
Modelnot available
Model Year2005
Model Yearnot available
Measurements / Dimensions
Beam14 ft. 3 in. (4.27 m)
Beam14.50 ft
Beam - Meters4.34
Beam - Meters4.42
Beam - Inches171
Beam - Inches174
Deadrise18℃
Deadrisenot available
Draft [max] - Detail44 in. (111.8 cm)
Draft [max] - Detail4.00 ft
Draft [max] - Meters1.12
Draft [max] - Meters1.22
Draft [max] - Inches44
Draft [max] - Inches48
Weight - Detail28,500 lbs. (12,927 kg)
Weight - Detailnot available
Weight - kg12927.37
Weight - kgnot available
Weight - lbs.285
Weight - lbs.not available
Length - Meters13.84
Length - Metersnot available
Length - Feet45
Length - Feet45
Length - Inches5
Length - Inchesnot available
Length overall - Detail45 ft. 5 in. (13.84 m)
Length overall - Detail45.00 ft
Length overall - Meters13.84
Length overall - Meters13.72
Length overall - Inches545
Length overall - Inches540
Displacementnot available
Displacement36602.00 lbs
Engine and Drivetrain
Engine/s standardT-Cummins MerCruiser? 6CTA 8.3M Diesel Inboards (T-430 hp - 321 kw)
Engine/s standardnot available
Fuel tank capacity - Detail350 gal. (1,324.8 l)
Fuel tank capacity - Detailnot available
Fuel tank capacity - Liters1324.89
Fuel tank capacity - Liters1419.53
Fuel tank capacity - Gal35
Fuel tank capacity - Gal375
Drive typeInboard
Drive typeinboard
Engine makenot available
Engine makeCummins
Engine modelnot available
Engine modelQSB 480 Zeus Drives
Horsepowernot available
Horsepower480 hp
Fuel typenot available
Fuel typeDiesel
Engine 2 Engine Makenot available
Engine 2 Engine MakeCummins
Engine 2 Engine Modelnot available
Engine 2 Engine ModelQSB 480 Zeus Drives
Engine 2 Horsepowernot available
Engine 2 Horsepower480 hp
Engine 2 Fuel Typenot available
Engine 2 Fuel TypeDiesel
Engine 2 Drive Typenot available
Engine 2 Drive Typeinboard
Operational Info
Water capacity120 gal. (454 l)
Water capacity13
Holding tank capacity - Detail42 gal. (159 l)
Holding tank capacity - Detailnot available
Holding tank capacity - Liters158.99
Holding tank capacity - Liters158.99
Holding tank capacity - Gal42
Holding tank capacity - Gal42
Sleeping capacitynot available
Sleeping capacity4
Cabinsnot available
Cabins2
Headnot available
Head2
Boat typenot available
Boat typePower

Sea Ray 420 Sedan Bridge 2005 vs Sea Ray Sedan Bridge 450 2012 — Common Questions

Which is the larger boat — the Sea Ray 420 Sedan Bridge 2005 or the Sea Ray Sedan Bridge 450 2012?
The Sea Ray Sedan Bridge 450 2012 is the longer of the two at 45,0 feet overall. The Sea Ray 420 Sedan Bridge 2005 comes in at 45,0 feet, making it roughly 0,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Sea Ray 420 Sedan Bridge 2005 or the Sea Ray Sedan Bridge 450 2012?
For trailering, the Sea Ray 420 Sedan Bridge 2005 has the edge at 285 lbs dry weight versus 36 602 lbs for the Sea Ray Sedan Bridge 450 2012. 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 Sea Ray Sedan Bridge 450 2012 has a documented max rating of 480 hp. Engine specifications for the Sea Ray 420 Sedan Bridge 2005 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 Sea Ray 420 Sedan Bridge 2005 is Coast Guard rated for 13 passengers, while the Sea Ray Sedan Bridge 450 2012 is certified for 13. 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 Sedan Bridge 450 2012 measures 174" wide, compared to 171" for the Sea Ray 420 Sedan Bridge 2005. 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 420 Sedan Bridge 2005 or the Sea Ray Sedan Bridge 450 2012?
The Sea Ray Sedan Bridge 450 2012 has the bigger tank at 375 gallons, versus 35 gallons on the Sea Ray 420 Sedan Bridge 2005. That 340-gallon difference translates to roughly 1020–1700 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Sea Ray 420 Sedan Bridge 2005 and Sea Ray Sedan Bridge 450 2012 from the same manufacturer?
Yes — both the Sea Ray 420 Sedan Bridge 2005 and the Sea Ray Sedan Bridge 450 2012 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.