Business ready.
Budget friendly.

The Mack® MD is built for your business.
Now available with a limited-time 4.99% APR1

SEE DETAILS

Mack’s heavy-duty toughness in a medium-duty truck.

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New cab ensures a smooth, stress-free ride

Mack MD Series steering wheel with integrated controls, illuminated gauges, and a detailed dashboard.
Flat-bottom steering wheel with cruise control, telephone, and radio/audio controls gives drivers more room for entry/exit and operation. Tilt-telescopic steering column lets drivers adjust their comfort.

Steering

Mack MD Series driver's seat with a gray fabric finish and armrest.
New premium driver’s seat features increased seat recline, adjustable lumber support, and a choice of vinyl or Mordura upholstery. Plus, adjustable driver and passenger seat belts mean increased safety and comfort.

Seating

Interior ceiling of the Mack MD Series cab with built-in LED lights and overhead console.
New overhead console provides additional storage and improved interior lighting replaces two halogen bulbs with four LED dome lights

Storage and lighting

A driver seated in the cab of a Mack MD Series truck with a fire extinguisher secured under the seat.
Four inches of additional legroom

Legroom

Close-up view of a wiring harness and circular connectors on a Mack MD Series truck, showing intricate electrical components.
Pre-wired Body Builder connections to Cummins & Allison

Body Builder

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Legendary durability.

New longer cab

Longer cab with 4” more interior room and a 107” BBC

  • White Mack MD Series truck showcasing its durable front grille.
  • White Mack MD Series truck showcasing its durable front grille.

120,000 PSI yield frame rails2

Heavy-duty steel frame rails ensure years of dependable service.

  • White Mack MD Series truck showcasing its durable front grille.
  • White Mack MD Series truck showcasing its durable front grille.

Clear back-of-cab above frame and side frame

Space with pre-wired Body Builder connections to Cummins & Allison

  • Red Mack MD Series box truck with clear back-of-cab space, pre-wired for body builder connections to Cummins and Allison systems.
  • Red Mack MD Series box truck with clear back-of-cab space, pre-wired for body builder connections to Cummins and Allison systems.

Built for a smooth, quiet ride.

Dual-airbag cab suspension

The standard dual-airbag cab suspension system delivers serious comfort for drivers to help them finish each day strong.

  • Close-up of the dual-airbag cab suspension system, designed to enhance driver comfort during long workdays
  • Close-up of the dual-airbag cab suspension system, designed to enhance driver comfort during long workdays

Standard rear leaf spring suspension

The standard rear leaf spring suspension is engineered to take on heavy loads with ease.

  • White Mack truck with rear leaf spring suspension, designed for handling heavy loads effortlessly.
  • White Mack truck with rear leaf spring suspension, designed for handling heavy loads effortlessly.

Optional Mack AL AirRide suspension

The optional AirRide suspension incorporates a dual-airbag design to soften bounces and bumps.

  • Front view of a black Mack truck with optional AirRide suspension featuring dual airbags for a smoother ride.
  • Front view of a black Mack truck with optional AirRide suspension featuring dual airbags for a smoother ride.
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Red Mack MD truck displayed with customizable options for body type and exterior color in a digital builder interface

Mack Truck Builder

Customize your own MD from the ground up with our digital truck builder experience.

Build My MD

Mack Live Tour

Experience Mack like never before. Our exclusive video walk-around pairs you with a dedicated Mack product specialist who can show you every vehicle angle, every feature and answer any question.

Book Your Experience

Person using a tablet to view a Mack MD truck during a Mack Live Tour virtual experience.

Numerous wheelbase options.

With sizes from 12 to 23 feet, get the perfect wheelbase for your application.

151"

Outline illustration of a Mack MD truck with a 151 inch wheelbase option.

175"

Outline illustration of a Mack MD truck with a 175 inch wheelbase option.

187"

Outline illustration of a Mack MD truck with a 187 inch wheelbase option.

205"

Outline illustration of a Mack MD truck with a 205 inch wheelbase option.

217"

Outline illustration of a Mack MD truck with a 217 inch wheelbase option.

235"

Outline illustration of a Mack MD truck with a 235 inch wheelbase option.

255”

Outline illustration of a Mack MD truck with a 255 inch wheelbase option.

274"

Outline illustration of a Mack MD truck with a 274 inch wheelbase option.

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Harness the power of integrated uptime.

24/7 Roadside Assistance

Our OneCall team of experts provides full-service support across North America.

Performance Tracking

The Geotab® system delivers intelligence and benchmarking to improve productivity.

Nationwide Dealer Network

Close to 200 Certified Uptime dealers across North America.

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Driver confidently operating a Mack MD truck, focused on the road.

Explore MD

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PEEP WINDOW

Passenger peep window allows for greater visibility for changing lanes, backing up and right turns.

POWDER-COATED DISC WHEELS

Standard powder-coated disc wheels deliver long-lasting durability.

READABLE GAUGES

Large digital gauges make key information easy to find.

GRATED STEPS

Full-width grated steel steps offer safer entry & exit.

HEATED LED HEADLIGHTS

Heated LED headlights increase forward visibility by up to 29% and side visibility by up to 50%.

Specs & Downloads

#id-4

Warranty & Extended Coverage Plans

#id-5

Purchase & Financing

#id-6
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Base Configurations

CLASS

6 & 7

HORSEPOWER

220 – 300 hp

TORQUE

560 – 660 lb-ft

GVW

25,995 – 33,000 lbs

Engines

DIESEL

Cummins B6.7
Efficiency Series

6.7 Liter
220 – 260 HP
520 – 660 lb-ft

DIESEL

Cummins B6.7
Performance Series

6.7 Liter
280 – 300 HP
660 lb-ft

BATTERY ELECTRIC

Learn More >

Transmissions

AUTOMATIC

Allison 2500 HS
Highway Series

6-speed
Fuel Sense NAS

AUTOMATIC

Allison 2500 RDS
Rugged Duty Series

6-speed
Fuel Sense Premium
Parking Pawl

AUTOMATIC

Allison 3000 RDS
Rugged Duty Series

6-speed
Fuel Sense Premium
PTO and Retarder Options

Axles

FRONT AXLE

Meritor

DRIVE AXLE

Meritor

Suspensions

LEAF

Mack Multi Leaf

AIR

Mack AL

Standard features

Interior Storage

Overhead console with storage

Four Interior LED dome lights
Adjustable seat belts
Anti-lock brakes with automatic traction control
Air Conditioning
Cruise Control
Air Suspension Driver's Seat
AM/FM w/ Bluetooth
Console Cup Holders
Tilt & Telescopic Steering Column
Flat-Bottom Steering Wheel with Cruise, Phone, and Radio Controls
12 Volt and USB Outlets
Bright Finish & Lower Convex Mirrors
Power Steering
Power Windows and Locks
Dual, Airbag Cab Suspension
120k PSI Steel Frame Rails1

Optional features

Allison Upgrade

Fuel Sense 2.0 MAX

Battery Shut Off

Under cab, passenger side

Engine Block Heater

Added protection in frigid temperatures

Air Filter Indicator

Under hood, restriction indicator mounted to air cleaner

PTO Preparation Kit

Harness & switch kit

Cab Mirrors

Chrome finish & convex

Driver Seat

Premium driver's seat with increased recline and lumbar support

Seat Upholstery

Mordura cloth upgrade

Downloads

Mack MD6
Mack MD7
Mack MD6 (FR)
Mack MD7 (FR)
Mack Trucks staff member assisting a customer at a desk.
Warranty

More than warranty protection. Peace of mind with complete coverage for the first year.

Explore Warranty

Technician diagnosing a Mack truck engine using a laptop, shows parts protection plan
Extended Coverage Plans

Lock in parts and labor costs with plans that cover powertrains, after treatment systems, chassis, clutches and towing at today’s prices.

Explore Plans

Two men discussing details at a desk, discussing financing options

Finance on Your Terms

Mack Financial Services provides the support you need to build your business.

Explore Financing

Current Offers

Once a Mack. Always a Mack.

We build trucks for a lifetime of hard work. That means a Mack Certified used truck is one of the best values on or off the road.

Learn about the Mack Certified program

See Inventory

Technician cleaning a Mack truck showcasing the Certified program

Mack Stories

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Lineup of Mack Trucks in various models and colors inside a showroom.

Build My Mack

Expanded virtual truck configurator wows users.

Read article >

White Mack truck on the production line in a manufacturing facility.
Mack MD grows with customer acceptance

Demand Leads to New Electric Offering and Plant Expansion

Read article >

Four blue Mack trucks with 'FoodPRO' trailers parked at a distribution center.
Mack Anthem and MD help fuel FoodPRO growth

Serving Up a Growing Appetite for Mack

Read article >

1 Rates as low as 4.99% APR available on qualified 2025 and 2024 model year medium duty trucks currently in dealer stock inventory. See the incentives page for details.
2 120k PSI frame rails only available on MD7. MD6 features 110k PSI frame rails.

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