Federal regulations · Through 2026-08-25 · Newer source version available

33 CFR 183.75: Applicability.

Manufacturers of vessels to which this subpart applies must use test weights that are not less than the recommended weights set forth in Table 183.75. Table 183.75 details the weight (in pounds) of gasoline outboard engines and related equipment for various rated power (horsepower) ranges.
Table 183.75—Weights (In Pounds) of Gasoline Outboard Engines and Related Equipment for Various Rated Power (Horsepower) Ranges
Single engine installations
Column number
1 2 3 4 5 6 7 8 9
Engine power range (Horsepower) Dry weight 1 2 Running weight 3 Swamped weight 4 Controls & rigging 5 Battery weight, dry Battery weight submerged Full portable fuel tank 6 Total weight (Sum of columns 3,5,6,8)
0.1-2.0 30 32 27 0 0 0 0 32
2.1-3.9 42 44 37 0 0 0 0 44
4.0-6.9 66 69 59 0 0 0 25 94
7.0-10.9 105 110 94 5 20 11 50 185
11.0-22.9 127 133 113 6 45 25 50 234
23.0-34.9 187 196 167 9 45 25 100 350
35.0-64.9 286 300 255 14 45 25 100 459
65.0-94.9 439 461 392 22 45 25 100 628
95.0-104.9 458 481 409 23 45 25 100 649
105.0-144.9 526 552 469 26 45 25 100 723
145.0-194.9 561 589 501 28 45 25 100 762
195.0-209.9 652 685 582 33 45 25 100 863
210.0-300.0 699 734 624 35 45 25 100 914
300.1-350.0 884 928 789 44 45 25 100 1,117
Notes:
1 Dry weight is the manufacturer's published weight for the shortest midsection increased by 10 percent to account for longer midsections and additional required hardware usually not included in published weights. This weight is intended to represent the heaviest model in each power category. For boats designed with a transom height of 20 inches or less, the weight in Column 2 may be reduced by 10 percent. Recalculate Columns 3, 4, and 9 as appropriate.
2 For diesel outboards, replace the value in Column 2 with the manufacturer's published dry weight + 10 percent.
3 Running weight is the dry weight plus fluids (including 2-stroke oil) and the heaviest recommended propeller. Calculated as 5 percent of dry weight.
4 Swamped weight is 85 percent of running weight.
5 Rigging and controls include engine related hardware required to complete the installation (e.g., controls, cables, hydraulic hoses, steering pumps and cylinders). Calculated as 5 percent of dry weight.
6 If the boat is equipped with a permanent fuel system and is not intended to use a portable tank, the portable fuel tank weight may be omitted.

Where this section sits in the code

Title 33—Navigation and Navigable Waters
CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY
SUBCHAPTER S—BOATING SAFETY
PART 183—BOATS AND ASSOCIATED EQUIPMENT
Subpart E—Flotation and Safe Loading Requirements-Outboard Motor and Related Equipment Test Weights

Table 183.75—Weights (In Pounds) of Gasoline Outboard Engines and Related Equipment for Various Rated Power (Horsepower) Ranges

Single engine installations

Column number

1 2 3 4 5 6 7 8 9

Engine power range (Horsepower) Dry weight 1 2 Running weight 3 Swamped weight 4 Controls & rigging 5 Battery weight, dry Battery weight submerged Full portable fuel tank 6 Total weight (Sum of columns 3,5,6,8)

0.1-2.0 30 32 27 0 0 0 0 32

2.1-3.9 42 44 37 0 0 0 0 44

4.0-6.9 66 69 59 0 0 0 25 94

7.0-10.9 105 110 94 5 20 11 50 185

11.0-22.9 127 133 113 6 45 25 50 234

23.0-34.9 187 196 167 9 45 25 100 350

35.0-64.9 286 300 255 14 45 25 100 459

65.0-94.9 439 461 392 22 45 25 100 628

95.0-104.9 458 481 409 23 45 25 100 649

105.0-144.9 526 552 469 26 45 25 100 723

145.0-194.9 561 589 501 28 45 25 100 762

195.0-209.9 652 685 582 33 45 25 100 863

210.0-300.0 699 734 624 35 45 25 100 914

300.1-350.0 884 928 789 44 45 25 100 1,117

Notes:

1 Dry weight is the manufacturer's published weight for the shortest midsection increased by 10 percent to account for longer midsections and additional required hardware usually not included in published weights. This weight is intended to represent the heaviest model in each power category. For boats designed with a transom height of 20 inches or less, the weight in Column 2 may be reduced by 10 percent. Recalculate Columns 3, 4, and 9 as appropriate.

2 For diesel outboards, replace the value in Column 2 with the manufacturer's published dry weight + 10 percent.

3 Running weight is the dry weight plus fluids (including 2-stroke oil) and the heaviest recommended propeller. Calculated as 5 percent of dry weight.

4 Swamped weight is 85 percent of running weight.

5 Rigging and controls include engine related hardware required to complete the installation (e.g., controls, cables, hydraulic hoses, steering pumps and cylinders). Calculated as 5 percent of dry weight.

6 If the boat is equipped with a permanent fuel system and is not intended to use a portable tank, the portable fuel tank weight may be omitted.

Collected 2026-08-27T02:25:35Z. Source file · JSON

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