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Army MOS · Support

91P Self Propelled Artillery Systems Mechanic

Current service use not established

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

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Overview

A Self Propelled Artillery Systems Mechanic performs and supervises field-level maintenance and recovery of self-propelled field artillery cannon weapon systems. The mechanic works on automotive, turret, carriage-mounted armament, fire control, and chemical protection subsystems.

Minimum ASVAB: MM 99

ASVAB policy: Not policy-reviewed · coverage unknown · as of 2026-10-19

Program scope has not been reviewed.

Policy applicability and coverage of the program's score routes have not been reviewed. Shown-route arithmetic is not an eligibility decision.

Source: smartbook-611-21-ch10c-fy2025 (source date 2025-12). Policy applicability has not been established.

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Core Skills

  • Artillery fire control system maintenance
  • Chemical protection subsystem maintenance
  • Combined automotive and turret maintenance

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.

Mobile Heavy Equipment Mechanics, Except Engines

Field maintenance and recovery of self-propelled artillery, including automotive and turret systems, provide directly transferable experience for mobile heavy equipment repair.

How to prepare: Complete hands-on familiarization with a civilian heavy equipment model, practicing inspection, component replacement, and post-repair testing against its service manual.

What the civilian work involves
  • Repair and replace damaged or worn parts.
  • Test mechanical products and equipment after repair or assembly to ensure proper performance and compliance with manufacturers' specifications.
  • Operate and inspect machines or heavy equipment to diagnose defects.
Civilian tools and software (examples)
  • Maintenance management software

Electrical and Electronics Repairers, Commercial and Industrial Equipment

Maintenance of artillery fire control systems provides a foundation for moving into commercial and industrial electronic equipment repair.

How to prepare: Take a hands-on industrial electronics course that includes fault diagnosis with test equipment and inspection of wiring and connections.

What the civilian work involves
  • Test faulty equipment to diagnose malfunctions, using test equipment or software, and applying knowledge of the functional operation of electronic units and systems.
  • Set up and test industrial equipment to ensure that it functions properly.
  • Inspect components of industrial equipment for accurate assembly and installation or for defects, such as loose connections or frayed wires.
Civilian tools and software (examples)
  • Circuit evaluation software
  • Computerized maintenance management system CMMS

Training & Development

Choose credentials for your target role. COOL funding markers describe program listings, not a guarantee of eligibility or funding.

Getting Started

  • Associate Electronics Technician (CETa)

    Demonstrate foundational electronics knowledge for the transition into industrial equipment repair; the issuer designs this credential for technicians with less than two years of electronics experience or training.

    For: Electrical and Electronics Repairers, Commercial and Industrial Equipment

Notes & Sources

Evidence for this guidance (4 documents)
  1. Army COOL MOC feed: 91P Self Propelled Artillery Systems Mechanic

    [1] data/authority/army-codes.json entry 91P (OSD COOL feed, fetched 2026-07-25); DB rank enlisted, authority codeType enlisted

    Supports: Artillery fire control system maintenance, Chemical protection subsystem maintenance, Combined automotive and turret maintenance, Mobile Heavy Equipment Mechanics, Except Engines (O*NET 49-3042.00), Electrical and Electronics Repairers, Commercial and Industrial Equipment (O*NET 49-2094.00)

  2. O*NET: Mobile Heavy Equipment Mechanics, Except Engines

    [2] O*NET 30.3 occupational data

    Supports: Mobile Heavy Equipment Mechanics, Except Engines (O*NET 49-3042.00)

  3. O*NET: Electrical and Electronics Repairers, Commercial and Industrial Equipment

    [3] O*NET 30.3 occupational data

    Supports: Electrical and Electronics Repairers, Commercial and Industrial Equipment (O*NET 49-2094.00)

  4. COOL credential mapping: Associate Electronics Technician (CETa)

    [4] 91P cached COOL credential feed

    Supports: Associate Electronics Technician (CETa)

    [5]ETA International: Associate Certified Electronics Technician · CETa description and CETa Exam Info; retrieved 2026-09-23

    Supports: Associate Electronics Technician (CETa)

Defense contractor jobs for 91P

Predecessor codes

Historical codes with documented links to 91P. Each history page explains the change.

63D1Artillery Mechanic63D2Artillery Mechanic63D3Artillery Mechanic63D4Artillery Mechanic

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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