Detailed Evaluation & Buyer Recommendation
Sylvan 1600 Avenger TL 2004 vs Sylvan Viper 180 2007 — Same Brand, Different Boat
The Sylvan 1600 Avenger TL 2004 vs Sylvan Viper 180 2007 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 Sylvan Viper 180 2007 tops out at 175 hp. Engine specs for the Sylvan 1600 Avenger TL 2004 aren't listed — confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the Sylvan Viper 180 2007 carries 39 gallons versus 24 gallons in the Sylvan 1600 Avenger TL 2004. 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 Sylvan Viper 180 2007 is rated for 6 passengers, while the Sylvan 1600 Avenger TL 2004 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sylvan Viper 180 2007 could be the deciding factor.
Bottom line: Choose the Sylvan Viper 180 2007 if your priority is putting more people on the water — it handles 6 passengers and at 18,0 ft it has the deck room to back that rating up comfortably. The Sylvan 1600 Avenger TL 2004 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.
General Boat Info
Model1600 Avenger TL
ModelViper 18
Model Year2004
Model Year2007
Measurements / Dimensions
Beam - Meters2.29
Beam - Meters2.44
Beam - Inches9
Beam - Inches96
Depth - Detail23 in
Depth - Detailnot available
Depth - Centimeters58.42
Depth - Centimetersnot available
Depth - Inches23
Depth - Inchesnot available
Width [transom] - Detail87 in
Width [transom] - Detailnot available
Height - Detail32 in
Height - Detailnot available
Height - Meters0.81
Height - Metersnot available
Height - Inches32
Height - Inchesnot available
Height [transom]LS
Height [transom]not available
Length overall - Detail16 ft
Length overall - Detail18 ft. 0 in
Length overall - Meters4.88
Length overall - Meters5.49
Length overall - Inches192
Length overall - Inches216
Weight - Detailnot available
Weight - Detail1,763 lbs
Weight - kgnot available
Weight - kg799.68
Weight - lbs.not available
Weight - lbs.1763
Length - Feetnot available
Length - Feet18
Body / Hull
Hull thicknessBottom: 0.080 Side: 0.076 Rib: 0.08
Hull thicknessnot available
Hull materialnot available
Hull materialFiberglass
Hull typenot available
Hull typeDeep Vee
Engine and Drivetrain
Fuel tank capacity - Detail24 gal
Fuel tank capacity - Detail39 gal
Fuel tank capacity - Liters90.85
Fuel tank capacity - Liters147.63
Fuel tank capacity - Gal24
Fuel tank capacity - Gal39
Max no of enginesnot available
Max no of engines1
Fuel typenot available
Fuel typeGas
Drive typenot available
Drive typeOutboard
Engine maxnot available
Engine max175 hp
Operational Info
Maximum capacitynot available
Maximum capacity1,950 lbs
Maximum peoplenot available
Maximum people6