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Dependability
Durability
Steadfast Support
— everything you’ve come to expect from Mack is now available in a medium-duty truck.
The Mack MD Series are packed from the exterior to the driver environment with features to ensure a smooth, stress-free ride—backed by our unmatched local dealer support.
Cab air suspension
Full-width aluminum grated steps, horizontally off set for visibility
50-gallon fuel tank (standard) 90-gallon (optional)
Frame rails rated at 120,000 psi yield strength (standard)
34-inch assembled frame width Rear leaf spring suspension (standard), Mack Air Ride (optional).
Tires 11R22.5 (standard), 19.5-inch Low Profile tires (optional, Class 6 only)
The Mack MD6 Low Profile is designed for ease of street loading and vocations that require lower chassis height, such as towing and recovery.
Steel powder coat disc wheels (standard) aluminum wheels (optional)
Passenger door lower peep window
Flat back-of-cab and clear body platform for easy body upfit
Accommodates 10 to 26-foot typical van bodies.
Clear space on driver and passenger side frame rails.
Durability
Steadfast Support
— everything you’ve come to expect from Mack is now available in a medium-duty truck.
The Mack MD Series are packed from the exterior to the driver environment with features to ensure a smooth, stress-free ride—backed by our unmatched local dealer support.
Cab air suspension
Full-width aluminum grated steps, horizontally off set for visibility
50-gallon fuel tank (standard) 90-gallon (optional)
Frame rails rated at 120,000 psi yield strength (standard)
34-inch assembled frame width Rear leaf spring suspension (standard), Mack Air Ride (optional).
Tires 11R22.5 (standard), 19.5-inch Low Profile tires (optional, Class 6 only)
The Mack MD6 Low Profile is designed for ease of street loading and vocations that require lower chassis height, such as towing and recovery.
Steel powder coat disc wheels (standard) aluminum wheels (optional)
Passenger door lower peep window
Flat back-of-cab and clear body platform for easy body upfit
Accommodates 10 to 26-foot typical van bodies.
Clear space on driver and passenger side frame rails.
- 2021
- Mack Trucks
- MD Series
- MD7
- Cab & Chassis
- Cummins B6.7 Inline 6-cylinder, Turbo/Intercooled Diesel
- 220 hp | 240 hp | 250 hp | 260 hp | 280 hp | 300 hp
- 600 lb. ft. | 560 lb. ft | 660 lb. ft. | 660 lb. ft | 660 lb. ft. | 660 lb. ft
- Est Engine RPM @ 65 mph: 1916 | 2018 | 2112 | 1916 | 2018 | 2112
- 11 in
- Melco12V
- STANDARD: Allison 2500HS 6-speed, double OD rated to 660 lb. ft. torque, w/Fuel Sense 2.0 Plus | OPTIONAL Allison 2500RDS 6-speed, double OD rated to 660 lb. ft. torque, w/Fuel Sense 2.0 Plus
- Engine: CCummins with dash switch | Bendix Antilock Braking System “S” Cam Air Brake System
- Meritor S Cam, 16.5" x 5" in.
- Meritor S Cam, 16.5" x 7" in.
- Rear axle, spring brake
- Hendrickson Taper Leaf, 12,000 lbs
- Telescopic type
- Delco 12V, 145 amp
- Filter: Filter and Water Separator | Heated, Fuel and Water Separator
- Rail: 260 x 70 x 8 mm
- Assembled: 34 in (864 mm)
- Standard: 21,000
- Round 22 in, driver-side. 50 gallons/Round 22 in, driver-side. 90 gallons | Deft tank: 25 liter, passenger-side
- 120k psi, 1.547m RBM
- Axle: 5.29 | 5.57 | 5.83 | 5.29 | 5.57 | 5.83 | Type: Meritor MFS-12, I-Beam | Meritor: MS-21-13x | Suspension – Taper Leaf (lb.): 21,000
- Steel cab with Premium trim level | Cab Lighting | Cab Mirrors | Cab Suspension
- Accuride steel powder coated white disc wheels 8.25 x 22.5 in., offset 6.6 in., 5-hole/Accuride aluminum wheels 8.25 x 22.5 in., offset 6.59 in.; 10-hole
- Bridgestone R268 Ecopia radials All season, all position, 11R22.5 (G)/Bridgestone M760 Ecopia radials Traction, rear position, 11R22.5 (G)
- Bridgestone R268 Ecopia radials All season, all position, 11R22.5 (G)/Bridgestone M760 Ecopia radials Traction, rear position, 11R22.5 (G)
- Dual 760CCA (1520 total CCA)
- Air Conditioning | Audio | Cruise Control | Cup Holders | Passenger Door Window | Power Outlets | Power Steering | Power Windows and Locks | Pro Dash | Seat Driver | Seat Passenger | Steering Column | Steering Wheel | Sun Visors
- MD Series Models MD6, MD7
- , Pennsylvania
- New
- MACK-MD7
- 2021
- Mack Trucks
- MD Series MD7
- Cummins ISB
- 300
- STANDARD: Allison 2500HS 6-speed, double OD rated to 660 lb. ft. torque, w/Fuel Sense 2.0 Plus | OPTIONAL Allison 2500RDS 6-speed, double OD rated to 660 lb. ft. torque, w/Fuel Sense 2.0 Plus
- Diesel
- Available
- Assembled: 34 in (864 mm)