Federal NAICS Codes

NAICS 333618

Other Engine Equipment Manufacturing

Explore obligations, trends, recent awards, and incumbent contractors for NAICS 333618.

NAICS 333618 federal market metrics

Total obligations
$7B
Total awards
484,169 awards
Active obligations
$937.2M
Size standard
1,500 employees

What this NAICS covers

NAICS 333618 covers manufacturing equipment and components for engines and power systems not classified elsewhere, including precision machining, fabrication, assembly, factory testing, calibration, and documentation of performance and quality records for engine-related hardware.

Federal opportunities under 333618 typically involve supplying manufactured engine components or test-ready assemblies to meet operational performance criteria, including production to detailed drawings, acceptance testing, traceable inspection records, certification of material and scheduled deliveries for system integration.

FY2025 snapshot

Obligations
$703.3M
Awards
48,121
Average award
$14.6K
Change from FY2024
+31.7%

Recent awards

Search contractors

$9,213

CUMMINS INC.

Federal Prison System / Bureau of Prisons

PIID
15B0AT26P41300001
PSC
L099 - TECHNICAL REPRESENTATIVE- MISCELLANEOUS

$33,115

WESTERN DIESEL SERVICES, INC.

Federal Aviation Administration

PIID
6973GH26P01980
PSC
5999 - MISCELLANEOUS ELECTRICAL AND ELECTRONIC COMPONENTS

$28,330

IXI TECHNOLOGY INC

US Coast Guard

PIID
70Z08526P30053B00
PSC
4810 - VALVES, POWERED

FAQ

What work fits NAICS 333618?
  • Fabrication and assembly of accessory engine modules such as starters, gear housings, and accessory drives delivered as separate subassemblies with test reports.
  • Production of turbocharger hardware components and housings requiring balance, pressure testing, and dimensional interchangeability per buyer drawings.
  • Manufacture of auxiliary power unit components and subsystems with documented run-in tests and vibration acceptance records.
  • Supply of engine-mounted pump and blower assemblies produced and tested to specified operational and mounting interface requirements.
When is NAICS 333618 a weak fit?
  • Complete engine manufacturing where the procurement requires full engine build and integration; missing the component-only fabrication and subassembly boundary of this NAICS.
  • Engine repair, overhaul, or field maintenance contracts that focus on remanufacture, inspection, and repair services rather than producing new engine components in a manufacturing environment.
  • Heavy structural casting or non-engine-specific metal fabrications where the product lacks engine-specific balancing, dynamic testing, or functional test requirements present in this NAICS.
What solicitation language points to NAICS 333618?
  • Specifications that require dynamic balancing, run-in testing, or vibration certification for delivered components and subassemblies.
  • Engineering drawings with callouts for bearing fits, interference tolerances, and material heat-treatment specifications tied to interchangeability.
  • Labor categories or evaluation criteria listing machinists, test cell operators, balancing technicians, and metallurgical material verification as required skills.

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