MasterCraft X-15 Backside SS 2007 vs MasterCraft X-45 2011 - Boat Spec Comparison

Q: Which is the larger boat — the MasterCraft X-15 Backside SS 2007 or the MasterCraft X-45 2011?

The MasterCraft X-45 2011 is the longer of the two at 24,2 feet overall. The MasterCraft X-15 Backside SS 2007 comes in at 21,0 feet, making it roughly 3,2 ft shorter — a meaningful difference in deck room and overall on-water presence.

Q: Which is easier to trailer — the MasterCraft X-15 Backside SS 2007 or the MasterCraft X-45 2011?

For trailering, the MasterCraft X-45 2011 has the edge at 495 lbs dry weight versus 3 425 lbs for the MasterCraft X-15 Backside SS 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.

Q: How many people can each boat hold?

The MasterCraft X-15 Backside SS 2007 is Coast Guard rated for 14 passengers, while the MasterCraft X-45 2011 is certified for 18. 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.

Q: Which boat has the larger fuel tank — the MasterCraft X-15 Backside SS 2007 or the MasterCraft X-45 2011?

The MasterCraft X-15 Backside SS 2007 has the bigger tank at 45 gallons, versus 9 gallons on the MasterCraft X-45 2011. That 36-gallon difference translates to roughly 108–180 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Q: Are the MasterCraft X-15 Backside SS 2007 and MasterCraft X-45 2011 from the same manufacturer?

Yes — both the MasterCraft X-15 Backside SS 2007 and the MasterCraft X-45 2011 are built by MasterCraft. 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.

Boat Comparison

MasterCraft X-15 Backside SS 2007 vs MasterCraft X-45 2011

MasterCraft

MasterCraft X-15 Backside SS 2007

2007

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MasterCraft

MasterCraft X-45 2011

2011

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Detailed Evaluation & Buyer Recommendation

MasterCraft X-15 Backside SS 2007 vs MasterCraft X-45 2011 — Same Brand, Different Boat

The MasterCraft X-15 Backside SS 2007 vs MasterCraft X-45 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.

Size is the most obvious dividing line here. The MasterCraft X-45 2011 measures 24,2 feet overall (2011), giving it roughly 3,2 additional feet of deck space compared to the MasterCraft X-15 Backside SS 2007 at 21,0 feet (2007). Weight tells a clearer story for trailering families: the MasterCraft X-15 Backside SS 2007 tips the scales at 3 425 lbs — 2 930 lbs more than the MasterCraft X-45 2011 at 495 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.

For family outings this is probably the sharpest distinction between the two. The MasterCraft X-45 2011 is rated for 18 passengers, while the MasterCraft X-15 Backside SS 2007 caps at 14. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the MasterCraft X-45 2011 could be the deciding factor.

Bottom line: Choose the MasterCraft X-45 2011 if your priority is putting more people on the water — it handles 18 passengers and at 24,2 ft it has the deck room to back that rating up comfortably. The MasterCraft X-15 Backside SS 2007 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 14 that costs less to run day-to-day.

General Boat Info

MakeMasterCraft

ModelX-15 Backside SS

ModelX-45

Model Year2007

Model Year2011

Measurements / Dimensions

Beam100 in

Beamnot available

Beam - Meters2.54

Beam - Metersnot available

Beam - Inches1

Beam - Inchesnot available

Depth - DetailTransom: 28 in. Amidship: 32 in

Depth - Detail28 in. (0.7 m) transom 32 in. (0.8 m) amidship

Depth - Centimeters81.28

Depth - Inches32

Draft [max] - Detail26.5 in

Draft [max] - Detail28 in. (0.7 m)

Draft [max] - Meters0.69

Draft [max] - Meters0.71

Draft [max] - Inches26.5

Draft [max] - Inches28

Weight - Detail3,425 lbs

Weight - Detail4,950 lbs. (2,245 kg)

Weight - kg1553.55

Weight - kg2245.28

Weight - lbs.3425

Weight - lbs.495

Length - Feet21

Length - Feet24.17

Length - Inches8

Length - Inchesnot available

Length [over all with swim platform]23 ft. 9 in

Length [over all with swim platform]26 ft. 3 in. (8 m)

Length overall - Detail21 ft. 8 in

Length overall - Detail24 ft. 2 in. (7.37 m)

Length overall - Meters6.6

Length overall - Meters7.37

Length overall - Inches26

Length overall - Inches29

Width [transom] - Detailnot available

Width [transom] - Detail102 in. (2.59 m) amidship

Height - Detailnot available

Height - Detail110.5 in. (2.8 m) standard tower to lowest point on keel

Height - Metersnot available

Height - Meters2.82

Height - Inchesnot available

Height - Inches110.5

Engine and Drivetrain

Fuel tank capacity - Detail45 gal

Fuel tank capacity - Detail90 gal. (341 l)

Fuel tank capacity - Liters170.34

Fuel tank capacity - Liters340.69

Fuel tank capacity - Gal45

Fuel tank capacity - Gal9

Fuel typeGas

Drive typeInboard

Engine makenot available

Engine makeIndmar, Ilmore

Engine modelnot available

Engine modelIndmar: MCX 5.7 l 350 CID V-8, 312 hp (230 kW) Indmar: L96 6.0 l V-8, 386 hp (284 kW) Indmar: LSA 6.2 l V-8, 537 hp (395 kW) Ilmore: 5.7 l V-8, 325 hp (239 kW) Ilmore: 6.0 l V-8, 386 hp (284 kW) Ilmore: 6.2 l V-8, 436 hp (321 kW)

Operational Info

Maximum capacity2,325 lbs

Maximum capacity2,928 lbs. (1,328 kg)

Maximum people14

Maximum people18

Trailer Info

Trailer - Length over all24 ft. 4 in. w/ Swing Away Tongue Folded: 22 ft. 2 in

Trailer - Length over all26 ft. 11 in. (8.2 m) 24 ft. 3 in. (7.4 m) swing away tongue

Trailer - WeightTandem-axle: 1,100 lbs

Trailer - Weight1,480 lbs. (671 kg)

Trailer - WidthTandem-axle: 100 in

Trailer - Width100 in. (2.54 m)

Body / Hull

Hull materialnot available

Hull materialFiberglass

Hull typenot available

Hull typeModified Vee

MasterCraft X-15 Backside SS 2007 vs MasterCraft X-45 2011 — Common Questions

Which is the larger boat — the MasterCraft X-15 Backside SS 2007 or the MasterCraft X-45 2011?

The MasterCraft X-45 2011 is the longer of the two at 24,2 feet overall. The MasterCraft X-15 Backside SS 2007 comes in at 21,0 feet, making it roughly 3,2 ft shorter — a meaningful difference in deck room and overall on-water presence.

Which is easier to trailer — the MasterCraft X-15 Backside SS 2007 or the MasterCraft X-45 2011?

For trailering, the MasterCraft X-45 2011 has the edge at 495 lbs dry weight versus 3 425 lbs for the MasterCraft X-15 Backside SS 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.

How many people can each boat hold?

The MasterCraft X-15 Backside SS 2007 is Coast Guard rated for 14 passengers, while the MasterCraft X-45 2011 is certified for 18. 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 has the larger fuel tank — the MasterCraft X-15 Backside SS 2007 or the MasterCraft X-45 2011?

The MasterCraft X-15 Backside SS 2007 has the bigger tank at 45 gallons, versus 9 gallons on the MasterCraft X-45 2011. That 36-gallon difference translates to roughly 108–180 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Are the MasterCraft X-15 Backside SS 2007 and MasterCraft X-45 2011 from the same manufacturer?

Yes — both the MasterCraft X-15 Backside SS 2007 and the MasterCraft X-45 2011 are built by MasterCraft. 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.

← MasterCraft X-15 Backside SS 2007 full specs ← MasterCraft X-45 2011 full specs