Detailed Evaluation & Buyer Recommendation
Harris Flotebote Grand Mariner SEL 230 2010 vs Harris Flotebote Sunliner 180 2006 — Same Brand, Different Boat
The Harris Flotebote Grand Mariner SEL 230 2010 vs Harris Flotebote Sunliner 180 2006 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 300 hp, the Harris Flotebote Grand Mariner SEL 230 2010 has a 220-hp advantage over the Harris Flotebote Sunliner 180 2006's 80-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.
For family outings this is probably the sharpest distinction between the two. The Harris Flotebote Grand Mariner SEL 230 2010 is rated for 14 passengers, while the Harris Flotebote Sunliner 180 2006 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Harris Flotebote Grand Mariner SEL 230 2010 could be the deciding factor.
Bottom line: Choose the Harris Flotebote Grand Mariner SEL 230 2010 if your priority is putting more people on the water — it handles 14 passengers and at 23,0 ft it has the deck room to back that rating up comfortably. The Harris Flotebote Sunliner 180 2006 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.
General Boat Info
MakeHarris Flotebote
MakeHarris Flotebote
ModelGrand Mariner SEL 23
ModelSunliner 18
Model Year201
Model Year2006
Measurements / Dimensions
Beam8 ft. 6 in
Beam8 ft. 6 in
Beam - Meters2.59
Beam - Meters2.59
Beam - Inches102
Beam - Inches102
Bridge clearance - Detail62 in
Bridge clearance - Detail62 in. (Bimini/stern light down)
Bridge clearance - Meters1.57
Bridge clearance - Meters1.57
Bridge clearance - Inches62
Bridge clearance - Inches62
Draft [drive up] - Detail13 in
Draft [drive up] - Detail12 in
Draft [drive up] meters0.33
Draft [drive up] meters0.3
Draft [drive up] inches13
Draft [drive up] inches12
Draft [max] - Detail30 in
Draft [max] - Detail21 in
Draft [max] - Meters0.76
Draft [max] - Meters0.53
Draft [max] - Inches3
Draft [max] - Inches21
Weight - Detail3,477 lbs. Performance III Package: 4,324 lbs
Weight - Detailnot available
Weight - kg1577.14
Weight - kgnot available
Weight - lbs.3477
Weight - lbs.not available
Length - Feet23
Length - Feet18
Length overall - Detail25 ft. 8 in. Pontoon: 23 ft
Length overall - Detail18 ft. 0 in
Length overall - Meters7.82
Length overall - Meters5.49
Length overall - Inches308
Length overall - Inches216
Body / Hull
Hull materialAluminum
Hull materialnot available
Hull typePontoon
Hull typenot available
Pontoon and Inflatable Specific
Tube diameter25 in
Tube diameter25 in
Engine and Drivetrain
Engine makeMercruiser
Engine makenot available
Engine model4.3 l MPI B3
Engine modelnot available
Engine/s standard220 hp
Engine/s standardnot available
Fuel tank capacity - Detail31 gal. Performance III Package: 81 gal
Fuel tank capacity - Detailnot available
Fuel tank capacity - Liters306.62
Fuel tank capacity - Litersnot available
Fuel tank capacity - Gal81
Fuel tank capacity - Galnot available
Fuel typeGas
Fuel typenot available
Drive typeInboard
Drive typeOutboard
Engine max300 hp
Engine max80 hp w/ Performance-III Package: 105 hp
Operational Info
Maximum capacityPerformance III Package: 1,935 lbs
Maximum capacitynot available
Maximum peoplePerformance III Package: 14
Maximum peoplenot available