Bayliner 315 Cruiser 2012 boat specs
Bayliner
Bayliner 315 Cruiser 2012
2012
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VS
Bayliner Discovery 289 Cruiser 2008 boat specs
Bayliner
Bayliner Discovery 289 Cruiser 2008
2008
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Bayliner 315 Cruiser 2012 vs Bayliner Discovery 289 Cruiser 2008 — Same Brand, Different Boat

The Bayliner 315 Cruiser 2012 vs Bayliner Discovery 289 Cruiser 2008 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 Bayliner 315 Cruiser 2012 measures 30,5 feet overall (2012), giving it roughly 3,5 additional feet of deck space compared to the Bayliner Discovery 289 Cruiser 2008 at 27,0 feet (2008). Weight tells a clearer story for trailering families: the Bayliner 315 Cruiser 2012 tips the scales at 9 098 lbs — 1 501 lbs more than the Bayliner Discovery 289 Cruiser 2008 at 7 597 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 300 hp, the Bayliner Discovery 289 Cruiser 2008 has a 40-hp advantage over the Bayliner 315 Cruiser 2012's 260-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Bayliner Discovery 289 Cruiser 2008 carries 102 gallons versus 12 gallons in the Bayliner 315 Cruiser 2012. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 9 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.

Bottom line: The Bayliner 315 Cruiser 2012 at 30,5 ft is the right call if deck space, comfort, and entertaining are top of your list. The Bayliner Discovery 289 Cruiser 2008 at 27,0 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
MakeBayliner
MakeBayliner
Model315 Cruiser
ModelDiscovery 289 Cruiser
Model Year2012
Model Year2008
Measurements / Dimensions
Beam10 ft. (3.05 m)
Beam9 ft. 9 in. (2.97 m)
Beam - Meters3.05
Beam - Meters2.97
Beam - Inches12
Beam - Inches117
Bridge clearance - Detail9 ft. 6 in. (2.9 m)
Bridge clearance - DetailMax: 9 ft. 1 in. (2.77 m)
Bridge clearance - Meters2.9
Bridge clearance - Meters2.77
Bridge clearance - Inches114
Bridge clearance - Inches109
Deadrise18°
Deadrise15℃
Draft [drive up] - Detail2 ft. 1 in. (0.64 m)
Draft [drive up] - Detail1 ft. 7 in. (0.48 m)
Draft [drive up] meters0.64
Draft [drive up] meters0.48
Draft [drive up] inches25
Draft [drive up] inches19
Draft [max] - Detail3 ft. 4 in. (1.02 m)
Draft [max] - Detail3 ft. 0 in. (0.91 m)
Draft [max] - Meters1.02
Draft [max] - Meters0.91
Draft [max] - Inches4
Draft [max] - Inches36
Weight - Detail9,098 lbs. (4,127 kg)
Weight - Detail7,597 lbs. (3,446 kg)
Weight - kg4126.78
Weight - kg3445.94
Weight - lbs.9098
Weight - lbs.7597
Length - Feet30.5
Length - Feet27
Length overall - Detail30 ft. 6 in. (9.3 m) 31 ft. 8 in. (9.65 m) rigged
Length overall - Detail27 ft. 9 in. (8.46 m) Rigged: 30 ft. 0 in. (9.14 m)
Length overall - Meters9.65
Length overall - Meters9.14
Length overall - Inches38
Length overall - Inches36
Length - Metersnot available
Length - Meters8.46
Length - Inchesnot available
Length - Inches9
Body / Hull
Hull materialFiberglass
Hull materialFiberglass
Hull typeDeep Vee
Hull typenot available
Engine and Drivetrain
Engine makeMercury
Engine makenot available
Engine modelMerCruiser T-220 M MPI / B3 (4.3 L) ECT Carb Compliant
Engine modelnot available
Engine/s standardTwin 220 hp
Engine/s standard350 MAG MPI MerCruiser? Bravo? II (300 hp)
Fuel tank capacity - Detail120 gal. (454.2 l)
Fuel tank capacity - Detail102 gal. (386 l)
Fuel tank capacity - Liters454.25
Fuel tank capacity - Liters386.11
Fuel tank capacity - Gal12
Fuel tank capacity - Gal102
Fuel typeGas
Fuel typeGas
Drive typeI/O - Twin
Drive typeI/O
Engine maxTwin 260 hp
Engine max300 hp
Operational Info
Water capacity33 gal. (124.9 l)
Water capacity36 gal. (136.3 l)
Holding tank capacity - Detail30 gal. (113.6 l)
Holding tank capacity - Detail30 gal. (113.6 l)
Holding tank capacity - Liters113.56
Holding tank capacity - Liters113.56
Holding tank capacity - Gal3
Holding tank capacity - Gal3

Bayliner 315 Cruiser 2012 vs Bayliner Discovery 289 Cruiser 2008 — Common Questions

Which is the larger boat — the Bayliner 315 Cruiser 2012 or the Bayliner Discovery 289 Cruiser 2008?
The Bayliner 315 Cruiser 2012 is the longer of the two at 30,5 feet overall. The Bayliner Discovery 289 Cruiser 2008 comes in at 27,0 feet, making it roughly 3,5 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Bayliner 315 Cruiser 2012 or the Bayliner Discovery 289 Cruiser 2008?
For trailering, the Bayliner Discovery 289 Cruiser 2008 has the edge at 7 597 lbs dry weight versus 9 098 lbs for the Bayliner 315 Cruiser 2012. 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 Bayliner Discovery 289 Cruiser 2008 is rated to a maximum of 300 hp, giving it the larger power ceiling. The Bayliner 315 Cruiser 2012 tops out at 260 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 Bayliner 315 Cruiser 2012 is Coast Guard rated for 9 passengers, while the Bayliner Discovery 289 Cruiser 2008 is certified for 9. 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 Bayliner Discovery 289 Cruiser 2008 measures 117" wide, compared to 12" for the Bayliner 315 Cruiser 2012. 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 Bayliner 315 Cruiser 2012 or the Bayliner Discovery 289 Cruiser 2008?
The Bayliner Discovery 289 Cruiser 2008 has the bigger tank at 102 gallons, versus 12 gallons on the Bayliner 315 Cruiser 2012. That 90-gallon difference translates to roughly 270–450 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Bayliner 315 Cruiser 2012 and Bayliner Discovery 289 Cruiser 2008 from the same manufacturer?
Yes — both the Bayliner 315 Cruiser 2012 and the Bayliner Discovery 289 Cruiser 2008 are built by Bayliner. 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.