Detailed Evaluation & Buyer Recommendation
Nitro 640 LX 2005 vs Nitro Z18 2019 — Same Brand, Different Boat
The Nitro 640 LX 2005 vs Nitro Z18 2019 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 Nitro 640 LX 2005 carries a rated maximum of 90 hp. Engine data for the Nitro Z18 2019 wasn't available in our records — check the manufacturer's spec sheet before sizing a motor.Fuel capacity breaks the other way: the Nitro 640 LX 2005 carries 24 gallons versus 4 gallons in the Nitro Z18 2019. 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 Nitro Z18 2019 is rated for 5 passengers, while the Nitro 640 LX 2005 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Nitro Z18 2019 could be the deciding factor.
Bottom line: Choose the Nitro Z18 2019 if your priority is putting more people on the water — it handles 5 passengers and at 19,0 ft it has the deck room to back that rating up comfortably. The Nitro 640 LX 2005 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
MakeNitro
Makenot available
Model640 LX
Modelnot available
Model Year2005
Model Yearnot available
Measurements / Dimensions
Beam84 in
Beamnot available
Beam - Meters2.13
Beam - Metersnot available
Beam - Inches84
Beam - Inchesnot available
Weight - Detail1,092 lbs
Weight - Detailnot available
Weight - kg495.32
Weight - kgnot available
Weight - lbs.1092
Weight - lbs.not available
Height [transom]21.5 in
Height [transom]not available
Length - Feet16
Length - Feet19
Length - Inches4
Length - Inchesnot available
Length overall - Detail16 ft. 4 in
Length overall - Detail19.00 ft
Length overall - Meters4.98
Length overall - Meters5.79
Length overall - Inches196
Length overall - Inches228
Engine and Drivetrain
Fuel tank capacity - Detail24 gal
Fuel tank capacity - Detailnot available
Fuel tank capacity - Liters90.85
Fuel tank capacity - Liters151.42
Fuel tank capacity - Gal24
Fuel tank capacity - Gal4
Engine max90 hp
Engine maxnot available
Engine makenot available
Engine makeMercury
Fuel typenot available
Fuel typeGas
Drive typenot available
Drive typeoutboard
Operational Info
Maximum capacity1,080 lbs
Maximum capacitynot available
Maximum people4
Maximum peoplenot available
Boat typenot available
Boat typePower
Trailer Info
Trailer - Length over all21 ft. 8 in. (with Transom Saver) 20 ft. 10 in. (without Transom Saver)
Trailer - Length over allnot available
Trailer - Weight1,806 lbs
Trailer - Weightnot available
Trailer - Width8 ft. 0 in
Trailer - Widthnot available