Monterey 318SS 2008 vs Monterey 340SY 2009 - Boat Spec Comparison

Q: Which is the larger boat — the Monterey 318SS 2008 or the Monterey 340SY 2009?

The Monterey 340SY 2009 is the longer of the two at 35,0 feet overall. The Monterey 318SS 2008 comes in at 31,0 feet, making it roughly 4,0 ft shorter — a meaningful difference in deck room and overall on-water presence.

Q: Which is easier to trailer — the Monterey 318SS 2008 or the Monterey 340SY 2009?

For trailering, the Monterey 318SS 2008 has the edge at 8 lbs dry weight versus 142 lbs for the Monterey 340SY 2009. 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: Which boat can handle a bigger outboard?

The Monterey 340SY 2009 is rated to a maximum of 375 hp, giving it the larger power ceiling. The Monterey 318SS 2008 tops out at 320 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.

Q: How many passengers can the Monterey 318SS 2008 carry?

The Monterey 318SS 2008 has an official capacity rating of 9 people. Capacity data wasn't available for the other model in this comparison — verify directly with the dealer.

Q: Which boat is wider, and does it affect trailering?

The Monterey 340SY 2009 measures 135" wide, compared to 114" for the Monterey 318SS 2008. 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.

Q: Which boat has the larger fuel tank — the Monterey 318SS 2008 or the Monterey 340SY 2009?

The Monterey 318SS 2008 has the bigger tank at 142 gallons, versus 21 gallons on the Monterey 340SY 2009. That 121-gallon difference translates to roughly 363–605 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Q: Are the Monterey 318SS 2008 and Monterey 340SY 2009 from the same manufacturer?

Yes — both the Monterey 318SS 2008 and the Monterey 340SY 2009 are built by Monterey. 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

Monterey 318SS 2008 vs Monterey 340SY 2009

Monterey

Monterey 318SS 2008

2008

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Monterey

Monterey 340SY 2009

2009

View full specs →

Detailed Evaluation & Buyer Recommendation

Monterey 318SS 2008 vs Monterey 340SY 2009 — Same Brand, Different Boat

Matching a deep vee Monterey 318SS 2008 against a modified vee Monterey 340SY 2009 means you're likely deciding between two genuinely different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.

Size is the most obvious dividing line here. The Monterey 340SY 2009 measures 35,0 feet overall (2009), giving it roughly 4,0 additional feet of deck space compared to the Monterey 318SS 2008 at 31,0 feet (2008). Weight tells a clearer story for trailering families: the Monterey 340SY 2009 tips the scales at 142 lbs — 134 lbs less than the Monterey 318SS 2008 at 8 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.

The power gap is worth calling out. Rated to 375 hp, the Monterey 340SY 2009 has a 55-hp advantage over the Monterey 318SS 2008's 320-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Monterey 318SS 2008 carries 142 gallons versus 21 gallons in the Monterey 340SY 2009. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

The Monterey 318SS 2008 is rated for up to 9 people. Passenger data for the Monterey 340SY 2009 wasn't available.

Bottom line: The Monterey 340SY 2009 at 35,0 ft is the right call if deck space, comfort, and entertaining are top of your list. The Monterey 318SS 2008 at 31,0 ft wins on trailering ease, likely lower purchase price, and simpler docking — a solid choice for a buyer who wants more boat for less money.

General Boat Info

MakeMonterey

Model318SS

Model340SY

Model Year2008

Model Year2009

Measurements / Dimensions

Beam9 ft. 6 in. (2.9 m)

Beam11 ft. 3 in. (3.4 m)

Beam - Meters2.9

Beam - Meters3.43

Beam - Inches114

Beam - Inches135

Deadrise22°

Deadrise17℃

Weight - Detail8,000 lbs. (3,629 kg)

Weight - Detail14,200 lbs. (6,441 kg)

Weight - kg3628.74

Weight - kg6441.01

Weight - lbs.8

Weight - lbs.142

Length - Meters9.7

Length - Meters10.7

Length - Feet31

Length - Feet35

Length - Inches1

Length - Inches3

Length overall - Detail31 ft. 10 in. (9.7 m)

Length overall - Detailnot available

Length overall - Meters9.7

Length overall - Metersnot available

Length overall - Inches382

Length overall - Inchesnot available

Bridge clearance - Detailnot available

Bridge clearance - Detail10 ft. 2 in. (3.1 m) with arch

Bridge clearance - Metersnot available

Bridge clearance - Meters3.1

Bridge clearance - Inchesnot available

Bridge clearance - Inches122

Draft [drive up] - Detailnot available

Draft [drive up] - Detail25 in. (63.5 cm)

Draft [drive up] metersnot available

Draft [drive up] meters0.64

Draft [drive up] inchesnot available

Draft [drive up] inches25

Draft [max] - Detailnot available

Draft [max] - Detail40 in. (101.6 cm)

Draft [max] - Metersnot available

Draft [max] - Meters1.02

Draft [max] - Inchesnot available

Draft [max] - Inches4

Length [over all with swim platform]not available

Length [over all with swim platform]35 ft. 3 in. (10.7 m)

Body / Hull

Hull materialFiberglass

Hull typeDeep Vee

Hull typeModified Vee

Engine and Drivetrain

Engine/s standardTwin Volvo 5.0 l GXI DP 270 hp

Engine/s standardVolvo T-300 hp 5.7 Gi DP

Fuel tank capacity - Detail142 gal. (538 l)

Fuel tank capacity - Detail210 gal. (795 l)

Fuel tank capacity - Liters537.53

Fuel tank capacity - Liters794.94

Fuel tank capacity - Gal142

Fuel tank capacity - Gal21

Fuel typeGas

Fuel typeGas or Diesel

Drive typeInboard - Twin

Engine maxTwin 320 hp (Twin 239 kW)

Engine maxT-375 hp (T-279.63 kW)

Operational Info

Water capacity15 gal. (57 l)

Water capacity42 gal. (159 l)

Holding tank capacity - Detail18 gal. (68 l)

Holding tank capacity - Detail28 gal. (106 l)

Holding tank capacity - Liters68.14

Holding tank capacity - Liters105.99

Holding tank capacity - Gal18

Holding tank capacity - Gal28

Headnot available

HeadEnclosed

Headroomnot available

HeadroomMaximum: 6 ft. 7 in. (2 m)

Water heater capacitynot available

Water heater capacity6 gal. (22 l)

Monterey 318SS 2008 vs Monterey 340SY 2009 — Common Questions

Which is the larger boat — the Monterey 318SS 2008 or the Monterey 340SY 2009?

The Monterey 340SY 2009 is the longer of the two at 35,0 feet overall. The Monterey 318SS 2008 comes in at 31,0 feet, making it roughly 4,0 ft shorter — a meaningful difference in deck room and overall on-water presence.

Which is easier to trailer — the Monterey 318SS 2008 or the Monterey 340SY 2009?

For trailering, the Monterey 318SS 2008 has the edge at 8 lbs dry weight versus 142 lbs for the Monterey 340SY 2009. 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 Monterey 340SY 2009 is rated to a maximum of 375 hp, giving it the larger power ceiling. The Monterey 318SS 2008 tops out at 320 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 passengers can the Monterey 318SS 2008 carry?

The Monterey 318SS 2008 has an official capacity rating of 9 people. Capacity data wasn't available for the other model in this comparison — verify directly with the dealer.

Which boat is wider, and does it affect trailering?

The Monterey 340SY 2009 measures 135" wide, compared to 114" for the Monterey 318SS 2008. 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 Monterey 318SS 2008 or the Monterey 340SY 2009?

The Monterey 318SS 2008 has the bigger tank at 142 gallons, versus 21 gallons on the Monterey 340SY 2009. That 121-gallon difference translates to roughly 363–605 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Are the Monterey 318SS 2008 and Monterey 340SY 2009 from the same manufacturer?

Yes — both the Monterey 318SS 2008 and the Monterey 340SY 2009 are built by Monterey. 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.

← Monterey 318SS 2008 full specs ← Monterey 340SY 2009 full specs