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Mack® MD Series

So many possibilities.
One medium-duty truck.

See why Petersen Industries chose MD See why Petersen Industries chose MD

Named Top 5 Medium Duty Truck of 2021 by Work Truck Magazine

Discover the new class of medium-duty capability.

Available in Class 6 and Class 7 applications, MD Series trucks are engineered to be anything you need them to be.


  • 220-300 HP
  • 600-660 lb.-ft. Torque
  • 10,000 lbs. Front Axle Capacity
  • 17,000 lbs. Rear Axle Capacity
  • 25,995 lbs. GVWR
Download MD6 Brochure

+ See Details


  • 220-300 HP
  • 600-660 lb.-ft. Torque
  • 12,000 lbs. Front Axle Capacity
  • 21,000 lbs. Rear Axle Capacity
  • 33,000 lbs. GVWR
Download MD7 Brochure

+ See Details

Upfits made easy.

See why professionals across every industry are choosing to build their businesses on Mack MD.

The guys love the visibility and how quiet and comfortable the cab is.

Christy Webber
Christy Webber Landscapes

Chicago, IL

Our driver loves how it handles, the turning radius and the dock height. It's a gamechanger for us.

Elaine Pivinsky
Franklin Hills Winery

Bangor, PA

We got the body installed without complications and put it right to work. Our driver loves the way it handles. It really gets the job done.

Scott Sullivan
Sullivan Eastern

It has all the bells and whistles and works perfectly with our equipment, safety wise.

Lloyd Hardy
Petersen Industries

Lake Wales, FL

Built for every custom build.

Choose from eight wheelbases to accommodate trucks 10 - 26 feet in length and get the perfect size for your application needs.

Truck diagram Truck diagram

Partners in production.

We work with a wide variety of body and equipment partners across North America to ensure your MD Series is the perfect fit for your upfit.

  • Fontaine Modification
  • Morgan Corp.
  • Summit Body Works
  • U.S. Truck Body
  • Utilimaster
  • Collins Manufacturing
    Company LTD
  • Mickey Truck Bodies
  • Multivans
  • Crysteel®
  • Knapheide®
  • Godwin Manufacturing Co. Inc.
  • Ox Bodies®
  • Rockport Trucks
  • Stahl Truck Bodies
  • Palfinger
  • Galbreath®
  • New Way Trucks
  • McNeilus®
  • Venco Venturo Industries, LLC
  • Valew
  • SkyMark Refuelers, LLC
  • ITI Trailers and Truck Bodies Inc.
  • Hackney
  • Wabash
  • Marion®
  • Petersen Industries
  • General Truck Body
  • Commercial Truck & Van Equipment
  • Amthor® International
  • Tremcar®
  • Kentucky Trailer
  • Complete Moving and Storage
  • Heil®
  • E-Z Pack
  • And more.

Talk to Mack to find a trusted partner near you.

Let's Talk

More fuel efficient and easier to use.

Now featuring the Allison 3000 RDS Transmission, the MD Series is engineered to adapt and operate efficiently in a variety of applications. The optional 3000 Series addition helps improve fuel efficiency and increases PTO, making it easier to operate.

Put comfort in the driver's seat.

Engineered to put a premium on driver comfort and control, the MD Series cab puts every detail right where it ought to be.

Confidence in control.

With our standard tilt and telescopic steering column, our signature flat-bottomed steering wheel gives driver confidence at every turn.

designed around the driver

Everything is within reach.

Every Mack MD truck is built around the driver's needs, meaning our intuitive dash design puts every dial right where you'd expect it.

seriously smooth

Seriously smooth suspension.

Spare your drivers the bounce and bump of every drive with our dual-airbag cab suspension system, standard on every Mack MD.

Supporting your business is our business.

Do more with data.

Improve productivity.

Collect truck performance data to improve productivity, fuel consumption and driver safety with Geotab® telematics.

Get smart about service

Instant service history access.

Give your entire service network instant access to service history and updates in one place with Mack ASSIST.

support at every turn

24/7 roadside support.

With our extensive dealer network and OneCall®-our standard 24/7 roadside assistance service-there's always a Mack dealer nearby to lend a helping hand.

Customized finance solutions.

Whether you have a small business or are managing a large fleet, Mack Financial Services offer flexible and innovative finance programs for your business. You can rely on the strength of an industry leader that will support you in both good and challenging times.

Connect with Us

Talk to your local Mack dealer about what a Mack MD Series can do for your business.