I would like to thank you for your interest in the MAC Trailer family of products. As I reflect to the days of having started in business as a one man operation repairing wrecked trailers in a single bay garage, I can not lose sight of how many people then, and over the years have entrusted their hauling operations to MAC Trailer.

Today, MAC Trailer has grown to be the nation’s foremost manufacturer of dump, flatbed and transfer trailers, straight truck bodies, dry bulk pneumatic tanks in both food grade and raw materials as well as an entire line of Liquid tank trailers equipped for gas, oil, fertilizer or food grade materials.

Between the two Alliance, Ohio Corporate offices and manufacturing plants, Aftermarket Parts, Inc. and Showroom, MAC Service, the Salem, Ohio Facility, MAC Liquid Tank Trailer in Kent, Ohio and Billings, MT Manufacturing and Parts/Service, MAC Trailer now encompasses over 1,350,000 square feet of facilities on campuses over 500 acres with a staff in excess of 1300 employees that services both national and international markets. We have also proudly expanded our Trailer line manufacturing into Oklahoma City, OK as well as Davis, OK and Haslet, TX to better serve our customers needs.

I am proud to say the success of MAC Trailer can be attributed to a quality product built by quality people; complemented by an experienced and knowledgeable sales staff and professional Authorized Dealer Network; supported by a full service and repair facilities, the benefit of a New and Used trailer division and a complete aftermarket parts department; all committed to a higher level of customer service.

My philosophy is to listen and learn from our customers and pursue continuous improvement through strong leadership and dedicated employees while providing added value in our product, for you.

I invite you to experience first hand the personalization that truly solidifies the MAC difference!

- Michael A. Conny, Owner


  • 1,200+ employees
  • Our service professionals know how to handle a your trailer repair
  • We get the job done right — the first time
  • Same day shipping for most aftermarket parts
  • "I’ll proudly support American made equipment that’s well built and helps me put food on the table. The workers in Alliance, Ohio know how to build a great trailer and our small business depends on three of them. They don’t all shine anymore but they’re dependable and tough. You can’t ask for anything better and I’m proud to pull a MAC trailer every day.” "

    Philip W. (Midwest, USA)
  • "You guys have played a big part in our trucking career, and I thank you for that."

    Ryder B. (Florida, USA)
  • "By far the nicest trailer I have ever pulled."

    Brandon B. (Quebec)


As a manufacturer, MAC Trailer recognizes the complexity of today’s ever changing market and the necessity to make you more competitive with advanced design trailers that provide operational benefits; or incorporate alternative components-materials that will improve fuel economies, maximize performance, reduce maintenance costs, increase payloads, generate greater profits, protect your investment and focus on safety.


    MAC Trailer offers a full range of trailers to fit the needs of today's changing work environments: Dump Trailers, Flatbed Trailers, Pneumatic Tank Trailers, Transfer Trailers, Straight Truck Bodies and Liquid Tank Trailers.


    MAC Trailer Aftermarket Parts Inc., maintains an extensive inventory in our 30,000 sq ft warehouse.


    MAC Service is proud to be housed in a beautifully constructed 60,000 square foot facility boosting 38 oversized work bays is located on the MAC Trailer campus in Alliance, Ohio.


    MAC Trailer is an Equal Opportunity Employer that provides quality HR services to attract, develop, motivate and retain a diverse workforce within a supportive work environment.


    MAC Trailer has an extensive network of trailer dealers all throughtout the United States and Canada.


    MAC Trailer is headquatered in Alliance, Ohio and has manufacturing facilities in Ohio, Texas, Oklahoma and Montana.