NAICS Code 333618: Other Engine Equipment Manufacturing
National industry
SBA small business size standard: 1,500 employees
Definition
This U.S. industry comprises establishments primarily engaged in manufacturing internal combustion engines (except automotive gasoline and aircraft).
Government contracts for this product: PSC 2815 Diesel Engines and Components
Code facts
- Part of
-
-
31-33
-
333
-
3336
- 33361
-
3336
-
333
-
31-33
- Contract awards
- 35,405 In the last 12 months
- Contract obligations
- $1,019,686,461 In FY2025
NAICS codes and definitions come from the U.S. Census Bureau, size standards from the SBA and contract spending from SAM.gov/FPDS.
Business activities under NAICS 333618
- Diesel and semidiesel engines manufacturing
- Electric outboard motors manufacturing
- Engines, diesel and semidiesel, manufacturing
- Engines, diesel locomotive, manufacturing
- Engines, internal combustion (except aircraft, nondiesel automotive), manufacturing
- Engines, natural gas, manufacturing
- Gasoline engines (except aircraft, automotive, truck) manufacturing
- Governors, diesel engine, manufacturing
- Governors, gasoline engine (except automotive), manufacturing
- Internal combustion engines (except aircraft, nondiesel automotive, nondiesel truck) manufacturing
- Locomotive diesel engines manufacturing
- Marine engines manufacturing
- Motors, outboard, manufacturing
- Natural gas engines manufacturing
- Outboard motors manufacturing
- Semidiesel engines manufacturing
Looking for another activity? Search the NAICS code lookup or browse business activities from A to Z.
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $282,223 |
| FY2026 | $843,384,725 |
| FY2025 | $1,019,686,461 |
| FY2024 | $678,867,918 |
| FY2023 | $622,703,779 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Rolls-Royce Solutions America Inc. | $171,972,599 | |
| 2 | Renk America LLC | $124,126,662 | |
| 3 | Cummins Inc. | $95,043,764 | |
| 4 | Integrated Procurement Technologies | $72,209,799 | |
| 5 | EOS Inc. | $59,057,949 | |
| 6 | Fairbanks Morse, LLC | $42,146,490 | |
| 7 | Everllence Middle East And Africa L.l.c | $33,900,559 | |
| 8 | Oshkosh Defense LLC | $30,788,093 | |
| 9 | Chand, L.L.C. | $24,104,474 | |
| 10 | Atlantic Diving Supply, Inc. | $16,476,439 |
See the full FY2025 ranking of NAICS 333618 contractors, by parent company.
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Army | $549,706,388 | |
| 2 | Defense Logistics Agency | $136,164,080 | |
| 3 | Department of the Navy | $84,977,945 | |
| 4 | Department of Homeland Security | $71,851,537 | |
| 5 | Department of the Interior | $574,277 | |
| 6 | Department of Justice | $150,640 | |
| 7 | Department of Commerce | $113,356 | |
| 8 | Washington Headquarters Service | $61,530 | |
| 9 | Department of State | $53,715 | |
| 10 | Air Force | $38,094 |
Top PSC codes by obligations
| Rank | PSC code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | 2815 Diesel Engines and Components | $519,429,098 | |
| 2 | 2910 Engine Fuel System Components, Nonaircraft | $94,771,311 | |
| 3 | J020 Maintenance, Repair and Rebuilding of Equipment: Ship and Marine Equipment | $21,747,428 | |
| 4 | J999 Non-Nuclear Ship Repair (West) | $19,272,506 | |
| 5 | 2930 Engine Cooling System Components, Nonaircraft | $18,442,818 | |
| 6 | J028 Maintenance, Repair and Rebuilding of Equipment: Engines, Turbines, and Components | $16,887,269 | |
| 7 | 2990 Miscellaneous Engine Accessories, Nonaircraft | $15,501,144 | |
| 8 | 2010 Ship and Boat Propulsion Components | $12,498,598 | |
| 9 | J998 Non-Nuclear Ship Repair (East) | $10,745,460 | |
| 10 | 6620 Engine Instruments | $10,220,082 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | Michigan | $280,856,634 | |
| 2 | Indiana | $98,358,467 | |
| 3 | Arizona | $73,210,638 | |
| 4 | Wisconsin | $66,419,328 | |
| 5 | South Carolina | $65,543,732 | |
| 6 | Virginia | $37,527,463 | |
| 7 | Louisiana | $28,639,072 | |
| 8 | Pennsylvania | $16,852,643 | |
| 9 | Texas | $16,560,192 | |
| 10 | New York | $16,510,390 | |
| 11 | Maryland | $12,191,766 | |
| 12 | California | $8,805,856 | |
| 13 | Florida | $8,253,700 | |
| 14 | Ohio | $8,065,260 | |
| 15 | Georgia | $8,032,401 | |
| 16 | New Jersey | $6,772,316 | |
| 17 | Illinois | $3,600,390 | |
| 18 | Washington | $3,203,790 | |
| 19 | Iowa | $3,124,157 | |
| 20 | Missouri | $2,935,733 | |
| 21 | Massachusetts | $2,771,725 | |
| 22 | Guam | $2,319,440 | |
| 23 | Tennessee | $2,068,880 | |
| 24 | Utah | $1,319,797 | |
| 25 | North Carolina | $982,264 | |
| 26 | New Hampshire | $827,098 | |
| 27 | Alabama | $746,172 | |
| 28 | Arkansas | $639,567 | |
| 29 | Oklahoma | $600,244 | |
| 30 | Oregon | $435,839 | |
| 31 | South Dakota | $426,884 | |
| 32 | Connecticut | $409,823 | |
| 33 | Idaho | $394,536 | |
| 34 | Hawaii | $348,134 | |
| 35 | Alaska | $237,189 | |
| 36 | District of Columbia | $230,378 | |
| 37 | Delaware | $214,793 | |
| 38 | New Mexico | $167,635 | |
| 39 | Kentucky | $160,960 | |
| 40 | Colorado | $152,894 | |
| 41 | Minnesota | $140,275 | |
| 42 | Mississippi | $130,488 | |
| 43 | Nevada | $70,490 | |
| 44 | Rhode Island | $54,429 | |
| 45 | Wyoming | $51,084 | |
| 46 | Maine | $22,739 | |
| 47 | West Virginia | $16,212 | |
| 48 | Vermont | $8,632 | |
| 49 | Nebraska | $8,282 | |
| 50 | North Dakota | $5,290 |
Show all 50
Shares are of everything obligated under NAICS 333618 in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.
Contract opportunities
Show 40 more
Latest 50 of 31,127 listed here. See the rest on GovTribe.
Size standard history
Federal Register rules that named this code
From the NAICS codes each rule's amendments to 13 CFR 121.201 name. Rules that print their size standard tables as images aren't listed.
Quick answers
What is NAICS 333618?
NAICS 333618 is Other Engine Equipment Manufacturing, a national industry in NAICS 31-33, Manufacturing.
What is the NAICS code for marine engines manufacturing?
The NAICS code for marine engines manufacturing is 333618, Other Engine Equipment Manufacturing.
What is the NAICS code for outboard motors manufacturing?
The NAICS code for outboard motors manufacturing is 333618, Other Engine Equipment Manufacturing.
What is the NAICS code for semidiesel engines manufacturing?
The NAICS code for semidiesel engines manufacturing is 333618, Other Engine Equipment Manufacturing.
When did the size standard for NAICS 333618 last change?
The most recent Federal Register rule on record that names NAICS 333618 in the SBA's size standards is "Small Business Size Standards for Manufacturing" (81 FR 4469), published Jan 26, 2016 and effective Feb 26, 2016.
How much do federal agencies spend under NAICS 333618?
Federal contracts under NAICS 333618 obligated $1,019,686,461 in fiscal year 2025 and $3,164,925,106 in fiscal years 2023 through 2027.
Who are the largest contractors under NAICS 333618?
The contractors with the most obligated under NAICS 333618 in fiscal years 2026 and 2027 are Rolls-Royce Solutions America Inc. ($171,972,599), Renk America LLC ($124,126,662) and Cummins Inc. ($95,043,764).
Which agencies buy the most under NAICS 333618?
The agencies that obligated the most under NAICS 333618 in fiscal years 2026 and 2027 are Department of the Army ($549,706,388), Defense Logistics Agency ($136,164,080) and Department of the Navy ($84,977,945).
Which PSC codes are used with NAICS 333618?
The PSC codes with the most obligated under NAICS 333618 in fiscal years 2026 and 2027 are 2815 Diesel Engines and Components; 2910 Engine Fuel System Components, Nonaircraft; and J020 Maintenance, Repair and Rebuilding of Equipment: Ship and Marine Equipment.
Where is the work under NAICS 333618 performed?
By place of performance, the states with the most contract obligations under NAICS 333618 over the last 12 months are Michigan ($280,856,634), Indiana ($98,358,467) and Arizona ($73,210,638).
What is the latest contract opportunity under NAICS 333618?
The latest contract opportunity under NAICS 333618 is Dampener, vibration, engine, award notice from Land and Maritime (DLA), posted November 6, 2026.
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See everything under NAICS 333618
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