WELCOME TO MAIN LINE MECHANICS

RELIABLE HEAVY-DUTY TRUCK & EQUIPMENT REPAIR

Stay road ready with preventative maintenance, roadside assistance, and expert repairs. Whether it’s a semi, trailer, or heavy equipment, we bring the service to you—fast, reliable, and professional.

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SERVING SOUTHWEST MONTANA

ABOUT US

COMMITTED TO KEEPING YOU MOVING

At Main Line Mechanics, we take pride in keeping Montana’s trucks and heavy equipment running strong. With years of hands-on experience, our team understands the importance of reliable service that gets you back to work quickly. Whether you need roadside assistance, advanced diagnostics, or preventative fleet maintenance, we deliver solutions that save you time and money. Our mobile service means you don’t have to worry about transporting equipment—we bring the expertise directly to you.

Local experts providing mobile and in-shop services for semis and heavy machinery.

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OUR SERVICES

PROFESSIONAL TRUCK & EQUIPMENT SERVICES

At Main Line Mechanics, we offer complete repair and maintenance solutions for semis, trailers, and heavy equipment. From precision alignments to hydraulic hose making, our team delivers reliable service with the right tools and expertise—keeping your vehicles and equipment running safely and efficiently.

SEMI TRUCK REPAIRS AND MAINTENANCE

From annual inspections to brake and air systems, electrical diagnostics, suspension, and A/C work—we handle everything to keep your semi road-ready and safe.

PRECISION ALIGNMENTS FOR ALL VEHICLES

Using Hunter XL technology, we perform accurate alignments for semis, trailers, cement trucks, fire trucks, ambulances, and motor coaches.

CONSTRUCTION AND HEAVY EQUIPMENT SERVICE

We provide complete inspections, hydraulic repairs, and undercarriage maintenance to keep your construction and heavy equipment running at peak performance.