Detailed Evaluation & Buyer Recommendation
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
Model618VS
ModelZ Comanche Series - Z21
Model Year2005
Model Year2007
Measurements / Dimensions
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