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91L Jobs (NOW HIRING)

MasTec Inc

CDL Skilled Laborer/Groundman

Cleveland, OH

$20 - $25/hr

You want to make an impact with your local community and enjoy being home daily MOS Codes 12K, 12N,12V, 12W, 21E, 21J, 25P, 91C, 91L, 11B, 1100, 1120, 1316, 9970-9975, 0612, 2T3XX, 2E1XX, 3E2XX ...

MasTec Inc

Directional Driller/Locator

Akron, OH

$27 - $33/hr

You want to make an impact with your local community and enjoy being home daily MOS Codes 12K, 12N,12V, 12W, 21E, 21J, 25P, 91C, 91L, 11B, 1100, 1120, 1316, 9970-9975, 0612, 2T3XX, 2E1XX, 3E2XX ...

MasTec Inc

CDL Skilled Laborer/Groundman

Cleveland, OH · On-site

$20 - $25/hr

You want to make an impact with your local community and enjoy being home daily MOS Codes 12K, 12N,12V, 12W, 21E, 21J, 25P, 91C, 91L, 11B, 1100, 1120, 1316, 9970-9975, 0612, 2T3XX, 2E1XX, 3E2XX ...

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91L information

What is a 91B job title?

A 91B is a Military Occupational Specialty (MOS) in the U.S. Army, known as Wheeled Vehicle Mechanic. They are responsible for inspecting, repairing, and maintaining military vehicles, often working in maintenance shops or on the field, and typically require technical training and certification. The role involves troubleshooting mechanical issues and ensuring vehicle readiness for operations.

What is a 91L MOS in the army?

A 91L MOS in the Army designates a Wheeled Vehicle Repairer, responsible for diagnosing, repairing, and maintaining military vehicles such as trucks and transport equipment. This role requires technical skills, knowledge of vehicle systems, and often involves working in maintenance facilities or on the field.

What is the difference between 91L vs 91A?

Aspect91L (Construction Vehicle Repairer)91A (All Other Support Equipment Repairer)
CertificationsMilitary vehicle repair certifications, ASE certificationsSupport equipment repair certifications, military technical certifications
Work EnvironmentConstruction sites, military bases, vehicle maintenance facilitiesMilitary bases, support equipment maintenance areas
Industry UsageConstruction, military vehicle maintenanceMilitary support equipment repair across various units

Both 91L and 91A roles involve repairing military vehicles and support equipment, often requiring similar certifications. However, 91L focuses specifically on construction and combat vehicles, while 91A covers a broader range of support equipment. The choice depends on the specific equipment and environment you aim to work in.

What are the key skills and qualifications needed to thrive as a 91L (Army Construction Equipment Repairer), and why are they important?

To thrive as a 91L, you need a solid understanding of mechanical systems, hydraulics, and diesel engines, typically supported by completion of Army Advanced Individual Training (AIT) in the specialty. Familiarity with diagnostic tools, technical manuals, and Army maintenance management systems is essential. Attention to detail, problem-solving abilities, and effective teamwork are standout soft skills in this position. These skills ensure the reliable operation and rapid repair of critical construction equipment, directly supporting mission readiness and operational success.

What is a 91L job description?

A 91L is a military occupational specialty for a Power Production Equipment Repairer in the Army National Guard. The role involves maintaining, repairing, and troubleshooting power generators and related equipment, often requiring technical skills and certifications in electrical or mechanical systems. The job typically involves working in various environments and may require security clearances and physical fitness standards.

What are 91L Construction Equipment Repairers?

91L Construction Equipment Repairers are soldiers in the U.S. Army responsible for maintaining and repairing construction equipment such as bulldozers, cranes, graders, and hydraulic systems. They diagnose mechanical issues, perform preventive maintenance, and ensure that equipment is operational for engineering and construction missions. Their work is essential to keeping Army construction operations running smoothly, both in the field and at base. Training includes both classroom instruction and hands-on experience with a variety of heavy machinery.

Where do 91L go for AIT?

Army 91L Military Occupational Specialty (MOS) soldiers attend Advanced Individual Training (AIT) at Fort Sill, Oklahoma. The training lasts approximately 16 weeks and covers skills related to artillery and fire support operations, including classroom instruction and hands-on practice with weapons systems and communication equipment.

What are some common challenges 91L Construction Equipment Repairers face in the field, and how can they prepare for them?

91L Construction Equipment Repairers often encounter challenges such as diagnosing complex issues in heavy machinery under time pressure and working in varying field conditions, including remote or combat environments. To prepare, it's helpful to become proficient in reading technical manuals, practice troubleshooting under simulated field conditions, and stay physically fit for demanding environments. Building strong communication skills is also important, as 91Ls frequently coordinate repairs with operators and other maintenance personnel to ensure equipment readiness.
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91L jobs near you
Infographic showing various 91L job openings in the United States as of July 2026, with employment types broken down into 99% Full Time, and 1% Contract. Highlights an 99% Physical, and 1% Remote job distribution.

Construction Equipment Repairer (91L)

U.S. Army

Lancaster, PA • On-site

$23K - $97K/yr

Full-time

Re-posted 3 days ago

United States Army rating

6.1

Company rating: 6.1 out of 10

Based on 488 frontline employees who took The Breakroom Quiz

46th of 50 rated military and defense

Job description

 (IAs a Construction Equipment Repairer, you'll keep the Army’s engineer equipment safe and operational by repairing and maintaining trucks, bulldozers, power shovels, and other heavy equipment that is needed for construction. You'll replace and perform tune-ups on brakes, motors, engines, drive pumps, water pumps, transmissions, and high-pressure hydraulic systems.
 
Testing & Certifications:
  • 107 Nationally Recognized Certifications Available.
  • 10 weeks of Basic Training (Paid).
  • 8 weeks of Advanced Individual Training (Paid).
  • Requires enlistment into the United States Army or United States Army Reserve. This job is available for both.

Basic Eligibility Requirements:
  • Age: Between 17-35 years old.
  • Medical, Moral, Physical: Medically and physically capable, and in good moral standing.
  • Citizenship: A U.S. citizen or permanent resident with a valid Green Card. (I-551)
  • Education: A high school diploma or equivalent.

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Industry

National security, health care and social assistance, national security and international affairs and public administration

Company size

10,000+ Employees

Headquarters location

Arlington, VA, US

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