Four Winns 378 Vista 2004 vs Four Winns HD8 OB RS 2021 - Boat Spec Comparison

Q: What is the maximum horsepower rating for these boats?

The Four Winns HD8 OB RS 2021 has a documented max rating of 250 hp. Engine specifications for the Four Winns 378 Vista 2004 were not available in our database - check the OEM spec sheet or manufacturer's website for confirmation.

Q: How many people can each boat hold?

The Four Winns 378 Vista 2004 is Coast Guard rated for 12 passengers, while the Four Winns HD8 OB RS 2021 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.

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

The Four Winns 378 Vista 2004 measures 153" wide, compared to 102" for the Four Winns HD8 OB RS 2021. 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 Four Winns 378 Vista 2004 or the Four Winns HD8 OB RS 2021?

The Four Winns 378 Vista 2004 has the bigger tank at 300 gallons, versus 70 gallons on the Four Winns HD8 OB RS 2021. That 230-gallon difference translates to roughly 690–1150 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Q: Are the Four Winns 378 Vista 2004 and Four Winns HD8 OB RS 2021 from the same manufacturer?

Yes - both the Four Winns 378 Vista 2004 and the Four Winns HD8 OB RS 2021 are built by Four Winns. 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

Four Winns 378 Vista 2004 vs Four Winns HD8 OB RS 2021

Four Winns

Four Winns 378 Vista 2004

2004

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Four Winns

Four Winns HD8 OB RS 2021

2021

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Detailed Evaluation & Buyer Recommendation

Four Winns 378 Vista 2004 vs Four Winns HD8 OB RS 2021: Same Brand, Different Boat

The Four Winns 378 Vista 2004 vs Four Winns HD8 OB RS 2021 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 Four Winns HD8 OB RS 2021 tops out at 250 hp. Engine specs for the Four Winns 378 Vista 2004 aren't listed - confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the Four Winns 378 Vista 2004 carries 300 gallons versus 70 gallons in the Four Winns HD8 OB RS 2021. 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 Four Winns 378 Vista 2004 is rated for 12 passengers, while the Four Winns HD8 OB RS 2021 caps at 8. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Four Winns 378 Vista 2004 could be the deciding factor.

Bottom line: Choose the Four Winns 378 Vista 2004 if your priority is putting more people on the water - it handles 12 passengers and at 0,0 ft it has the deck room to back that rating up comfortably. The Four Winns HD8 OB RS 2021 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 8 that costs less to run day-to-day.

General Boat Info

MakeFour Winns

Makenot available

Model378 Vista

Modelnot available

Model Year2004

Model Yearnot available

Measurements / Dimensions

Beam12 ft. 9 in.

Beam8.50 ft

Beam - Meters3.89

Beam - Meters2.59

Beam - Inches153

Beam - Inches102

Deadrise19℃

Deadrisenot available

Draft [max] - Detail42 in.

Draft [max] - Detail2.10 ft

Draft [max] - Meters1.07

Draft [max] - Meters0.64

Draft [max] - Inches42

Draft [max] - Inches25

Weight - Detail18,000-20,000 lbs.

Weight - Detailnot available

Weight - kg9071.84

Weight - kgnot available

Weight - lbs.20000

Weight - lbs.not available

Height [transom]11 ft. 6 in. w/arch

Height [transom]not available

Length overall - Detail41 ft. 3 in. (with Swim Platform)

Length overall - Detail26.70 ft

Length overall - Meters12.57

Length overall - Meters8.14

Length overall - Inches495

Length overall - Inches320

Length - Feetnot available

Length - Feet26.7

Engine and Drivetrain

Fuel tank capacity - Detail300 gal.

Fuel tank capacity - Detailnot available

Fuel tank capacity - Liters1135.62

Fuel tank capacity - Liters264.98

Fuel tank capacity - Gal300

Fuel tank capacity - Gal70

Engine makenot available

Engine makeMercury

Engine modelnot available

Engine model250XL Verado

Horsepowernot available

Horsepower250 hp

Fuel typenot available

Fuel typeGas

Operational Info

Water capacity66 gal.

Water capacity12

Maximum capacityYacht

Maximum capacitynot available

Boat typenot available

Boat typePower

Four Winns 378 Vista 2004 vs Four Winns HD8 OB RS 2021 - Common Questions

What is the maximum horsepower rating for these boats?

The Four Winns HD8 OB RS 2021 has a documented max rating of 250 hp. Engine specifications for the Four Winns 378 Vista 2004 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 Four Winns 378 Vista 2004 is Coast Guard rated for 12 passengers, while the Four Winns HD8 OB RS 2021 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.

Which boat is wider, and does it affect trailering?

The Four Winns 378 Vista 2004 measures 153" wide, compared to 102" for the Four Winns HD8 OB RS 2021. 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 Four Winns 378 Vista 2004 or the Four Winns HD8 OB RS 2021?

The Four Winns 378 Vista 2004 has the bigger tank at 300 gallons, versus 70 gallons on the Four Winns HD8 OB RS 2021. That 230-gallon difference translates to roughly 690–1150 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Are the Four Winns 378 Vista 2004 and Four Winns HD8 OB RS 2021 from the same manufacturer?

Yes - both the Four Winns 378 Vista 2004 and the Four Winns HD8 OB RS 2021 are built by Four Winns. 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.

← Four Winns 378 Vista 2004 full specs ← Four Winns HD8 OB RS 2021 full specs