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Navy NEC · Engineering

747B Diesel Engine Inspector

Current service use not established

This code is listed in the directory. Inclusion alone does not confirm current service use.

A Navy Enlisted Classification: a skill designation sailors hold in addition to their rating.

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Overview

A Diesel Engine Inspector assesses material condition and monitors the general readiness of marine main propulsion diesel engines, diesel generators, and component systems. This inspector provides onboard maintenance training, diagnoses improper operating procedures and equipment failures, and supports corrective actions.

Core Skills

  • Diagnosis of improper engine operation
  • Shipboard diesel maintenance instruction
  • Propulsion and generator readiness assessment

Civilian Career Paths

Career associations are editorial assessments of the cited evidence, not an official crosswalk unless the evidence explicitly says so. O*NET supplies civilian occupation information, not proof of a military match. Related experience does not confer civilian qualifications. Tasks and tools below describe civilian work, not military training.

Bus and Truck Mechanics and Diesel Engine Specialists

Diagnosing marine diesel engine failures and supporting corrective actions transfers directly to civilian diesel engine troubleshooting.

How to prepare: Complete practical training in truck brake and steering systems to address the vehicle-specific work beyond your marine engine experience.

What the civilian work involves
  • Attach test instruments to equipment, and read dials and gauges to diagnose malfunctions.
  • Inspect brake systems, steering mechanisms, wheel bearings, and other important parts to ensure that they are in proper operating condition.
Civilian tools and software (examples)
  • Cummins INSITE
  • Computerized maintenance management system software CMMS

Transportation Vehicle, Equipment and Systems Inspectors, Except Aviation

Assessing propulsion equipment condition, diagnosing failures, and supporting corrective actions aligns with inspecting transportation equipment for mechanical defects and repair quality.

How to prepare: Practice applying the inspection standards for your target vehicle or equipment type to a sample condition and repair inspection report.

What the civilian work involves
  • Inspect vehicles or other equipment for evidence of abuse, damage, or mechanical malfunction.
  • Inspect vehicles or equipment to ensure compliance with rules, standards, or regulations.
  • Inspect repairs to transportation vehicles or equipment to ensure that repair work was performed properly.
Civilian tools and software (examples)
  • Microsoft Excel

Notes & Sources

Evidence for this guidance (3 documents)
  1. NAVPERS 18068F Vol II (NEOCS, Jul 2026 edition): NEC 747B

    [1] NEC entry "747B - Diesel Engine Inspector"; cached text line 17813; NAVPERS 18068F Vol II, 2026-07 edition

    Supports: Diagnosis of improper engine operation, Shipboard diesel maintenance instruction, Propulsion and generator readiness assessment, Bus and Truck Mechanics and Diesel Engine Specialists (O*NET 49-3031.00), Transportation Vehicle, Equipment and Systems Inspectors, Except Aviation (O*NET 53-6051.07)

  2. O*NET: Bus and Truck Mechanics and Diesel Engine Specialists

    [2] O*NET 30.3 occupational data

    Supports: Bus and Truck Mechanics and Diesel Engine Specialists (O*NET 49-3031.00)

  3. O*NET: Transportation Vehicle, Equipment and Systems Inspectors, Except Aviation

    [3] O*NET 30.3 occupational data

    Supports: Transportation Vehicle, Equipment and Systems Inspectors, Except Aviation (O*NET 53-6051.07)

Defense contractor jobs for 747B

Descriptions may be summarized for clarity. Verify all information with your branch career counselor or official military documentation before making career decisions.

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