Mack MD Series

Medium-Duty Trucks Built for Growing Businesses

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Mack MD6

Medium-Duty Capability — No CDL Required*

The Mack MD6 is a smart choice for businesses that need real commercial capability without the added staffing challenges of CDL requirements. For non‑hazardous payloads, the MD6 can be operated without a Commercial Driver’s License, making it easier to deploy across growing teams. 

Mack MD6

Ideal For

  • Regional delivery and freight 
  • Landscaping, tree service and contracting 
  • Plumbing, HVAC and electrical trades 
  • Agriculture and farm operations 

Why Fleets Choose the MD6

  • No CDL required for non‑hazardous loads* 
  • Easy to maneuver on urban streets and job sites 
  • Built to handle daily work without overbuying 
  • Flexible chassis design supports a wide range of upfits

*Always confirm licensing requirements based on vehicle configuration and local regulations. 

Mack MD7

More Payload for Heavier Medium-Duty Work

When your application demands more — heavier bodies, larger payloads, tougher job sites — the Mack MD7 delivers. Built for higher capacity without sacrificing comfort or control, the MD7 is well‑suited for fleets supporting construction, municipal and regional hauling needs. 

Ideal For

  • Construction support and material delivery 
  • Box, refrigerated and flatbed applications 
  • Towing and recovery 
  • Municipal and government fleets

Why Fleets Choose the MD7

  • Increased payload capacity for demanding jobs 
  • Stable, durable platform for heavier upfits 
  • Designed for reliability in regional and vocational use 
  • Comfortable cab supports all‑day operation 
Mack MD7

Ready-to-Work Trucks. Ready-to-Support Partner.

Adding trucks should move your business forward — not slow it down. At RDO Truck Centers our team helps you select, configure, and support Mack MD Series trucks that fit your operation today and scale for tomorrow. 

•  Mack MD trucks available now across our regional locations

•  Competitive pricing and flexible financing options

•  Custom upfit coordination for your application

•  Long‑term support through RDO’s service and parts network

Ready to Grow Your Fleet?

Contact RDO Truck Centers today to see available Mack MD6 and MD7 trucks and find the right fit for your business.

Mack MD Series

Introducing MD6 and MD7 Models

When your operation is expanding — more routes, more jobs, more demand — you need trucks that can keep up without overextending your budget or your team.

The Mack MD Series, including the MD6 and MD7, delivers Mack durability in a Medium‑Duty platform designed for regional hauling, delivery, construction support and municipal work. Built tough and comfortable, MD trucks help you grow capacity while staying efficient and supported. 

Why the Mack MD Series Makes Sense for Your Fleet

The MD Series is engineered to bridge the gap between light‑ and heavy‑duty trucks, making it easier to scale your operation without unnecessary complexity.

What Sets the Mack MD Series Apart

  • Built tough for daily commercial use in demanding environments 
  • Driver‑friendly and comfortable, supporting productivity on long days 
  • Upfit‑ready for delivery, construction, towing, municipal, and specialty applications 
  • Available now at RDO Truck Center locations, helping you avoid extended lead times 
  • Supported by our trusted parts and service network, keeping your trucks on the road
Mack MD Truck with van body