ThunderJet Denali 2012 boat specs
ThunderJet
ThunderJet Denali 2012
2012
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ThunderJet Havasu 2008 boat specs
ThunderJet
ThunderJet Havasu 2008
2008
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ThunderJet Denali 2012 vs ThunderJet Havasu 2008 — Which Modified Vee Fits Your Needs?

When two boats share the same hull type — in this case both the ThunderJet Denali 2012 and the ThunderJet Havasu 2008 are modified vee designs with aluminum construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?

The ThunderJet Havasu 2008 tops out at 425 hp. Engine specs for the ThunderJet Denali 2012 aren't listed — confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the ThunderJet Denali 2012 carries 48 gallons versus 5 gallons in the ThunderJet Havasu 2008. 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 ThunderJet Havasu 2008 is rated for 8 passengers, while the ThunderJet Denali 2012 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the ThunderJet Havasu 2008 could be the deciding factor.

Bottom line: Choose the ThunderJet Havasu 2008 if your priority is putting more people on the water — it handles 8 passengers and at 2,0 ft it has the deck room to back that rating up comfortably. The ThunderJet Denali 2012 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
MakeThunderJet
MakeThunderJet
ModelDenali
ModelHavasu
Model Year2012
Model Year2008
Measurements / Dimensions
Beam90 in
Beam90 in
Beam - Meters2.29
Beam - Meters2.29
Beam - Inches9
Beam - Inches9
Deadrise6°
Deadrise14℃
Weight - Detail1,900 lbs
Weight - Detailnot available
Weight - kg861.82
Weight - kgnot available
Weight - lbs.19
Weight - lbs.not available
Width [transom] - DetailBottom: 78 in
Width [transom] - Detail31 in
Height - DetailSides: 28 in
Height - DetailSides: 31 in
Height - Meters0.71
Height - Meters0.79
Height - Inches28
Height - Inches31
Height [transom]28 in
Height [transom]not available
Length - Feet18
Length - Feet2
Length overall - Detail18 ft
Length overall - Detail20 ft. 0 in
Length overall - Meters5.49
Length overall - Meters6.1
Length overall - Inches216
Length overall - Inches24
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull thicknessSides: 0.125 in. Bottom: 0.190 in. Transom: 0.190 in
Hull thickness0.190 in
Hull typeModified Vee
Hull typeModified Vee
Engine and Drivetrain
Engine/s standard200 Mercury Optimax Sport Jet 60&#176 direct fuel injected V-6
Engine/s standard350 Carbureted; 250 hp
ExhaustTuned thru transom exhaust with dual mufflers
Exhaustnot available
Impeller4-blade progressive pitch SST
Impellernot available
Jet pumpMixed flow high volume
Jet pumpAmerican Turbine SD 309
Fuel tank capacity - Detail48 gal
Fuel tank capacity - Detail50 gal
Fuel tank capacity - Liters181.7
Fuel tank capacity - Liters189.27
Fuel tank capacity - Gal48
Fuel tank capacity - Gal5
Fuel typeGas
Fuel typeGas
Drive typeJet Drive
Drive typeJet Drive
Engine maxnot available
Engine max425 hp
Trailer Info
Trailer - DetailGateway 3,980 lbs. capacity galvanized single axle bunk
Trailer - Detailnot available
Operational Info
Maximum capacitynot available
Maximum capacity1,800 lbs
Maximum peoplenot available
Maximum people8 / 1,750 lbs

ThunderJet Denali 2012 vs ThunderJet Havasu 2008 — Common Questions

Which is the larger boat — the ThunderJet Denali 2012 or the ThunderJet Havasu 2008?
The ThunderJet Denali 2012 is the longer of the two at 18,0 feet overall. The ThunderJet Havasu 2008 comes in at 2,0 feet, making it roughly 16,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
What is the maximum horsepower rating for these boats?
The ThunderJet Havasu 2008 has a documented max rating of 425 hp. Engine specifications for the ThunderJet Denali 2012 were not available in our database — check the OEM spec sheet or manufacturer's website for confirmation.
How many people can each boat hold?
The ThunderJet Denali 2012 is Coast Guard rated for 5 passengers, while the ThunderJet Havasu 2008 is certified for 8. 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.
Do these boats require an oversize trailer permit to tow on US highways?
Both the ThunderJet Denali 2012 and ThunderJet Havasu 2008 share an 90 in beam — meaning both sit right at the 8’6" threshold that most US states use for standard-width loads. In most states you can tow at that width without a special permit, but regulations vary. Always check the rules for your state and any states you'll be passing through before your first long haul.
Which boat has the larger fuel tank — the ThunderJet Denali 2012 or the ThunderJet Havasu 2008?
The ThunderJet Denali 2012 has the bigger tank at 48 gallons, versus 5 gallons on the ThunderJet Havasu 2008. That 43-gallon difference translates to roughly 129–215 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the ThunderJet Denali 2012 and ThunderJet Havasu 2008 from the same manufacturer?
Yes — both the ThunderJet Denali 2012 and the ThunderJet Havasu 2008 are built by ThunderJet. 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.