Nitro 189 Sport 2006 boat specs
Nitro
Nitro 189 Sport 2006
2006
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VS
Nitro Z-7 2011 boat specs
Nitro
Nitro Z-7 2011
2011
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Nitro 189 Sport 2006 vs Nitro Z-7 2011: Same Brand, Different Boat

The Nitro 189 Sport 2006 vs Nitro Z-7 2011 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 - Nitro 189 Sport 2006 at 19,0 ft versus Nitro Z-7 2011 at 18,7 ft. At 1 675 lbs and 1 650 lbs respectively, both sit in a similar weight class - either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.

Both boats share a closely matched power ceiling - 200 hp for the Nitro 189 Sport 2006 and 200 hp for the Nitro Z-7 2011. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup. Fuel capacity breaks the other way: the Nitro Z-7 2011 carries 45 gallons versus 31 gallons in the Nitro 189 Sport 2006. 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 189 Sport 2006 is rated for 6 passengers, while the Nitro Z-7 2011 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Nitro 189 Sport 2006 could be the deciding factor.

Bottom line: Choose the Nitro 189 Sport 2006 if your priority is putting more people on the water - it handles 6 passengers and at 19,0 ft it has the deck room to back that rating up comfortably. The Nitro Z-7 2011 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
MakeNitro
Model189 Sport
ModelZ-7
Model Year2006
Model Year2011
Measurements / Dimensions
Beam93 in.
Beam94 in.
Beam - Meters2.36
Beam - Meters2.39
Beam - Inches93
Beam - Inches94
Weight - Detail1,675 lbs.
Weight - Detail1,650 lbs.
Weight - kg759.77
Weight - kg748.43
Weight - lbs.1675
Weight - lbs.1650
Height [transom]22 in.
Height [transom]22 in.
Length - Feet19
Length - Feet18.67
Length - Inches4
Length - Inchesnot available
Length overall - Detail19 ft. 4 in.
Length overall - Detail18 ft. 8 in.
Length overall - Meters5.89
Length overall - Meters5.69
Length overall - Inches232
Length overall - Inches224
Deadrisenot available
Deadrise16°
Draft [max] - Detailnot available
Draft [max] - Detail15 in.
Draft [max] - Metersnot available
Draft [max] - Meters0.38
Draft [max] - Inchesnot available
Draft [max] - Inches15
Engine and Drivetrain
Engine/s standardMercury? 115 OptiMax?
Engine/s standardnot available
Fuel tank capacity - Detail31 gal.
Fuel tank capacity - Detail45 gal.
Fuel tank capacity - Liters117.35
Fuel tank capacity - Liters170.34
Fuel tank capacity - Gal31
Fuel tank capacity - Gal45
Drive typeOutboard
Drive typeOutboard
Engine max200 hp
Engine max200 hp
Engine makenot available
Engine makeMercury®
Engine modelnot available
Engine model150 OptiMax®
Fuel typenot available
Fuel typeGas
Operational Info
Maximum capacity1,500 lbs.
Maximum capacity1,390 lbs.
Maximum people6
Maximum people4 / 600 lbs.
Trailer Info
Trailer - DetailNITRO? color-coordinated single axle drive-on
Trailer - DetailNITRO? color coordinated single axle drive-on
Trailer - Weight2,815 lbs.
Trailer - Weight3,000 lbs.
Trailer - Length over allnot available
Trailer - Length over allWith Swing-away: 21 ft. 9 in.
Trailer - Widthnot available
Trailer - Width8 ft. 6 in.
Body / Hull
Hull materialnot available
Hull materialFiberglass
Hull typenot available
Hull typeModified Vee

Nitro 189 Sport 2006 vs Nitro Z-7 2011 - Common Questions

Which is the larger boat - the Nitro 189 Sport 2006 or the Nitro Z-7 2011?
The Nitro 189 Sport 2006 is the longer of the two at 19,0 feet overall. The Nitro Z-7 2011 comes in at 18,7 feet, making it roughly 0,3 ft shorter - a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer - the Nitro 189 Sport 2006 or the Nitro Z-7 2011?
For trailering, the Nitro Z-7 2011 has the edge at 1 650 lbs dry weight versus 1 675 lbs for the Nitro 189 Sport 2006. 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.
How many people can each boat hold?
The Nitro 189 Sport 2006 is Coast Guard rated for 6 passengers, while the Nitro Z-7 2011 is certified for 4. 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 Nitro Z-7 2011 measures 94" wide, compared to 93" for the Nitro 189 Sport 2006. 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 Nitro 189 Sport 2006 or the Nitro Z-7 2011?
The Nitro Z-7 2011 has the bigger tank at 45 gallons, versus 31 gallons on the Nitro 189 Sport 2006. That 14-gallon difference translates to roughly 42–70 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Nitro 189 Sport 2006 and Nitro Z-7 2011 from the same manufacturer?
Yes - both the Nitro 189 Sport 2006 and the Nitro Z-7 2011 are built by Nitro. 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.