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Army MOS · Support

91H Tracked Vehicle Repairer

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 Tracked Vehicle Repairer performs field or sustainment level maintenance on tracked vehicles other than the M1, M2, and M109 families. The repairer also supervises field or sustainment level maintenance on tracked vehicles other than those families.

Minimum ASVAB: MM 90

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

  • Field and sustainment level vehicle maintenance
  • Supervision of tracked vehicle 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

Performing field or sustainment maintenance on tracked vehicles provides directly transferable experience for mobile heavy equipment repair.

How to prepare: Compare your documented vehicle maintenance experience with a heavy equipment employer's repair duties, then seek hands-on training for unfamiliar civilian equipment.

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.
  • Read and understand operating manuals, blueprints, and technical drawings.
Civilian tools and software (examples)
  • Maintenance management software
  • Recordkeeping software

Notes & Sources

  • The specialty's maintenance scope excludes the M1, M2, and M109 vehicle families.
Evidence for this guidance (2 documents)
  1. Army COOL MOC feed: 91H Tracked Vehicle Repairer

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

    Supports: Field and sustainment level vehicle maintenance, Supervision of tracked vehicle maintenance, Mobile Heavy Equipment Mechanics, Except Engines (O*NET 49-3042.00)

  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)

Defense contractor jobs for 91H

Predecessor codes

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

63H1Track Vehicle Repairer63H2Track Vehicle Repairer63H3Track Vehicle Repairer

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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