Sea Doo 180 Challenger 2008 boat specs
Sea-Doo
Sea Doo 180 Challenger 2008
2008
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VS
Sea-Doo RXT-X 350 2027 boat specs
Sea-Doo
Sea-Doo RXT-X 350 2027
2027
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Sea Doo 180 Challenger 2008 vs Sea-Doo RXT-X 350 2027: Same Brand, Different Boat

The Sea Doo 180 Challenger 2008 vs Sea-Doo RXT-X 350 2027 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 350 hp, the Sea-Doo RXT-X 350 2027 has a 95-hp advantage over the Sea Doo 180 Challenger 2008's 255-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Sea Doo 180 Challenger 2008 carries 28 gallons versus 19 gallons in the Sea-Doo RXT-X 350 2027. 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 Doo 180 Challenger 2008 is rated for 5 passengers, while the Sea-Doo RXT-X 350 2027 caps at 3. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sea Doo 180 Challenger 2008 could be the deciding factor.

The Sea Doo 180 Challenger 2008 is trailerable - a genuine lifestyle advantage at this size. The Sea-Doo RXT-X 350 2027 isn't listed as trailerable, which may mean a permanent berth or mooring is required.

Bottom line: Choose the Sea Doo 180 Challenger 2008 if your priority is putting more people on the water - it handles 5 passengers and at 17,7 ft it has the deck room to back that rating up comfortably. The Sea-Doo RXT-X 350 2027 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 3 that costs less to run day-to-day.
Measurements / Dimensions
Length overall - Detail17.70 ft
Length overall - Detail11 ft. 4 in. (3.45 m)
Length - Feet17.7
Length - Feet11.32
Length overall - Meters5.39
Length overall - Meters3.45
Length overall - Inches212
Length overall - Inches135.83
Beam8.20 ft
Beamnot available
Beam - Meters2.5
Beam - Meters1.25
Beam - Inches98
Beam - Inches49.21
Draft [max] - Detail12.00 ft
Draft [max] - Detailnot available
Draft [max] - Meters3.66
Draft [max] - Metersnot available
Draft [max] - Inches144
Draft [max] - Inchesnot available
Displacement1913.00 lbs
Displacementnot available
Height - Detailnot available
Height - Detail45.28 in. (1.15 m)
Height - Inchesnot available
Height - Inches45.28
Height - Metersnot available
Height - Meters1.15
Engine and Drivetrain
Fuel tank capacity - Gal28
Fuel tank capacity - Gal18.5
Fuel tank capacity - Liters105.99
Fuel tank capacity - Liters70
Engine makeRotax
Engine makeRotax
Engine model4-TEC
Engine model1630 ACE (1,630 cc)
Horsepower255 hp
Horsepower350 hp
Fuel typeGas
Fuel typeGasoline
Drive typenot available
Drive typeJet propulsion
Engine maxnot available
Engine max350 hp
Engine/s standardnot available
Engine/s standardSingle engine
Max no of enginesnot available
Max no of engines1
Operational Info
TrailerableYes
Trailerablenot available
Boat typePower
Boat typePower
Maximum peoplenot available
Maximum people3
Maximum capacitynot available
Maximum capacity273 kg
Storagenot available
Storage98.9 L total
General Boat Info
Makenot available
MakeSea-Doo
Modelnot available
ModelRXT-X 350
Model Yearnot available
Model Year2027
Weight - Detailnot available
Weight - Detail842.17 lbs. (382 kg)
Weight - kgnot available
Weight - kg382
Weight - lbs.not available
Weight - lbs.842.17
Usenot available
UsePersonal watercraft
Body / Hull
Hull materialnot available
Hull materialFiberglass
Hull typenot available
Hull typeST3 hull
Warranty Info
Warrantynot available
Warranty2 year BRP limited watercraft warranty
Options / Other
Optionsnot available
OptionsLinQ front supports; removable storage-bin and mesh organizers; ski pylon; wakeboard rack; boarding ladder; touring windshield; floorboard wedges; wind deflectors; audio; rear floating-mat holder.

Sea Doo 180 Challenger 2008 vs Sea-Doo RXT-X 350 2027 - Common Questions

Which is the larger boat - the Sea Doo 180 Challenger 2008 or the Sea-Doo RXT-X 350 2027?
The Sea Doo 180 Challenger 2008 is the longer of the two at 17,7 feet overall. The Sea-Doo RXT-X 350 2027 comes in at 11,3 feet, making it roughly 6,4 ft shorter - a meaningful difference in deck room and overall on-water presence.
Which boat can handle a bigger outboard?
The Sea-Doo RXT-X 350 2027 is rated to a maximum of 350 hp, giving it the larger power ceiling. The Sea Doo 180 Challenger 2008 tops out at 255 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 Doo 180 Challenger 2008 is Coast Guard rated for 5 passengers, while the Sea-Doo RXT-X 350 2027 is certified for 3. 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 Doo 180 Challenger 2008 measures 98" wide, compared to 49" for the Sea-Doo RXT-X 350 2027. 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 Doo 180 Challenger 2008 or the Sea-Doo RXT-X 350 2027?
The Sea Doo 180 Challenger 2008 has the bigger tank at 28 gallons, versus 19 gallons on the Sea-Doo RXT-X 350 2027. That 9-gallon difference translates to roughly 28–47 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Sea Doo 180 Challenger 2008 and Sea-Doo RXT-X 350 2027 from the same manufacturer?
Yes - both the Sea Doo 180 Challenger 2008 and the Sea-Doo RXT-X 350 2027 are built by Sea-Doo. 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.