Ranger 618VS 2005 boat specs
Ranger
Ranger 618VS 2005
2005
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VS
Ranger Z Comanche Series - Z21  2007 boat specs
Ranger
Ranger Z Comanche Series - Z21 2007
2007
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Ranger 618VS 2005 vs Ranger Z Comanche Series - Z21 2007 — Same Brand, Different Boat

The Ranger 618VS 2005 vs Ranger Z Comanche Series - Z21 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 power gap is worth calling out. Rated to 250 hp, the Ranger Z Comanche Series - Z21 2007 has a 135-hp advantage over the Ranger 618VS 2005's 115-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Ranger Z Comanche Series - Z21 2007 carries 48 gallons versus 26 gallons in the Ranger 618VS 2005. 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 Ranger Z Comanche Series - Z21 2007 is rated for 6 passengers, while the Ranger 618VS 2005 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Ranger Z Comanche Series - Z21 2007 could be the deciding factor.

Bottom line: Choose the Ranger Z Comanche Series - Z21 2007 if your priority is putting more people on the water — it handles 6 passengers and at 21,0 ft it has the deck room to back that rating up comfortably. The Ranger 618VS 2005 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
MakeRanger
MakeRanger
Model618VS
ModelZ Comanche Series - Z21
Model Year2005
Model Year2007
Measurements / Dimensions
Beam83 in
Beam95 in
Beam - Meters2.11
Beam - Meters2.41
Beam - Inches83
Beam - Inches95
Depth - Detail20 3/4 in
Depth - Detail21 in
Depth - Centimeters53.34
Depth - Centimeters53.34
Depth - Inches20.75
Depth - Inches21
Weight - Detail1,445 lbs
Weight - Detail1,875 lbs. with single console
Weight - kg655.44
Weight - kg850.49
Weight - lbs.1445
Weight - lbs.1875
Height [transom]21 in
Height [transom]23 in
Length overall - Detail18 ft
Length overall - Detail21 ft. 2 in
Length overall - Meters5.49
Length overall - Meters6.45
Length overall - Inches216
Length overall - Inches254
Length - Feetnot available
Length - Feet21
Length - Inchesnot available
Length - Inches2
Engine and Drivetrain
Fuel tank capacity - Detail(1) 26 gal
Fuel tank capacity - Detail48 gal
Fuel tank capacity - Liters98.42
Fuel tank capacity - Liters181.7
Fuel tank capacity - Gal26
Fuel tank capacity - Gal48
Engine max115-150 hp
Engine max250 hp
Fuel typenot available
Fuel typeGas
Drive typenot available
Drive typeOutboard
Operational Info
Maximum capacity1,375 lbs
Maximum capacity1,800 lbs
Trailer Info
Trailer - DetailGVWR (3,725 lbs.)
Trailer - DetailGVWR: 5,000 lbs
Trailer - Length over all22 ft. 9 in. w/Motor Down 20 ft. 9 in. w/Motor Down & Swing-Away Tongue Open
Trailer - Length over all26 ft. 4 in. with motor down 24 ft. 4 in. with swing-away tongue open
Trailer - Width94 in
Trailer - Width102 in
Body / Hull
Hull materialnot available
Hull materialFiberglass

Ranger 618VS 2005 vs Ranger Z Comanche Series - Z21 2007 — Common Questions

Which is easier to trailer — the Ranger 618VS 2005 or the Ranger Z Comanche Series - Z21 2007?
For trailering, the Ranger 618VS 2005 has the edge at 1 445 lbs dry weight versus 1 875 lbs for the Ranger Z Comanche Series - Z21 2007. 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.
Which boat can handle a bigger outboard?
The Ranger Z Comanche Series - Z21 2007 is rated to a maximum of 250 hp, giving it the larger power ceiling. The Ranger 618VS 2005 tops out at 115 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 Ranger 618VS 2005 is Coast Guard rated for 5 passengers, while the Ranger Z Comanche Series - Z21 2007 is certified for 6. 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 Ranger Z Comanche Series - Z21 2007 measures 95" wide, compared to 83" for the Ranger 618VS 2005. 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 Ranger 618VS 2005 or the Ranger Z Comanche Series - Z21 2007?
The Ranger Z Comanche Series - Z21 2007 has the bigger tank at 48 gallons, versus 26 gallons on the Ranger 618VS 2005. That 22-gallon difference translates to roughly 66–110 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Ranger 618VS 2005 and Ranger Z Comanche Series - Z21 2007 from the same manufacturer?
Yes — both the Ranger 618VS 2005 and the Ranger Z Comanche Series - Z21 2007 are built by Ranger. 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.