MP®8
The MP®8 engine is a legend on roads everywhere. With plenty of horsepower and torque across a wide operating range, the MP®8 delivers the muscle to shoulder heavy-duty vocational and highway workloads.
2.5-5% FUEL ECONOMY IMPROVEMENT
88 LBS WEIGHT SAVINGS
415-505 HORSEPOWER
1460-1860 LB.-FT. TORQUE
13L DISPLACEMENT
ASSEMBLED IN THE USA
WAVE PISTON
The next evolution in piston design
Mack’s innovative wave piston design delivers 2% improvement in fuel economy and 90% reduction in soot. The waves in the piston bowl redirect flames in the combustion chamber to utilize all available oxygen for a cleaner and more complete burn than standard diesel pistons.
COMMON RAIL FUEL SYSTEM
Uncommon power and efficiency
This direct injection system delivers ultra-precise control over fuel injection pressure, timing and volume. The result is more power and efficiency, with less engine noise. Save fuel, gain power and lower emissions.
PowerLeash Engine Brake
More confidence while braking
The Mack PowerLeash engine brake provides more braking horsepower through mid-RPM ranges, and weighs 50 pounds less than competitive engine brakes. With better braking over the entire speed range, PowerLeash delivers the most braking ever in a Mack engine brake. You’ll immediately notice how the quiet and responsive PowerLeash engine brake provides more confidence while braking.
Two-Speed Coolant Pump
Optimized for the situation at hand
Mack’s improved two-speed coolant pump reduces parasitic loss by delivering the right amount of cooling capacity at the right time. When maximum cooling isn’t required, the pump gears down for an extra 0.5 - 0.6% savings in fuel economy.
Even Distribution of Power
MP® delivers consistent power and torque across a wide operating range that can be tuned to your needs for the right mix of power and high fuel efficiency.
Serious Weight Savings
The lighter the engine, the more you can load. The MP®8 now weighs 88 pounds less than the previous version, which means more payload per trip day in and day out—plus better operational efficiency and more revenue.
Assembled in the USA
We take pride in being homegrown. All Mack engines, transmissions and drivelines are assembled in Hagerstown, MD USA.
Engine Specs
Maintenance Intervals
Base Configurations
TYPE
Direct Injection Diesel
NUMBER OF CYLINDERS
6, In-Line
BORE & STROKE
5.16" x 6.22" [131mm x 158mm]
DISPLACEMENT
780 [13L]
COMPRESSION RATIO
16:1
FIRING ORDER
1-5-3-6-2-4
TORQUE RISE
89%
CLUTCH ENGAGEMENT
1215 lb-ft [1647 N•m] @ 800 RPM
IDLE SPEEDS
Low: 600 RPM Adjustable – High: 2100 RPM
ENGINE BRAKE RETARDING POWER
500 HP [372 kW] @ 2100 RPM
DRY WEIGHT (APPROX)
2597 lbs [1177 kg]
Model Year 2011 and Newer EnginesUsing Maack EOS-4.5 Premium Oil |
NORMAL DUTYGreater than 6 mpg Less than 39L/100km |
HEAVY DUTYGreater than 5 mpg Less than 50L/100km |
SEVERE DUTYLess than 5 mpg Greater than 50L/100km |
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MP® 7 / MP® 8 or MP®10 with 42 L / 44 Qt Oil Pan: Mack EOS-4.5* Premium Oil, Filters and Fuel Filters (Replace) |
MILES | 60,000 / 55,000** | 45,000 / 40,000** | 35,000 / 30,000** | |
KM | 95,000 / 90,000** | 70,000 / 65,000** | 55,000 / 50,000** | ||
HOURS | 1,700 / 1,600** | 1,300 / 1,200** | 825 / 750** | ||
MP® 10 with 52 L / 55 Qt Oil Pan: Mack EOS-4.5* Premium Oil, Filters, and Fuel Filters (Replace) |
MILES | 65,000 / 60,000** | 50,000 / 45,000** | 40,000 / 35,000** | |
KM | 105,000 / 95,000** | 80,000 / 70,000** | 65,000 / 55,000** | ||
HOURS | 1,750 | 1,300 | 825 | ||
Model Year 2011 to 2016 Engines Using Mack EOS-4 Premium Oil |
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MP® 7 / MP® 8 or MP®10 with 42 L / 44 Qt Oil Pan: Mack EOS-4* Premium Oil, Filters and Fuel Filters (Replace) |
MILES | 45,000 | 35,000 | 25,000 | |
KM | 75,000 | 60,000 | 45,000 | ||
HOURS | 1,300 | 1,000 | 625 | ||
MP® 10 with 52 L / 55 Qt Oil Pan: Mack EOS-4* Premium Oil, Filters and Fuel Filters (Replace) |
MILES | 50,000 | 45,000 | 35,000 | |
KM | 80,000 | 75,000 | 60,000 | ||
HOURS | 1,300 | 1,000 | 625 | ||
MACK PREMIUM LONG LIFE COOLANT |
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Mack Premium Long-Life Coolant (Replace) | MILES | 1,000,000 | |||
KM | 1,600,000 | ||||
HOURS | 96 months | ||||
Mack Premium Long-Life Coolant Filter (Replace) | MILES | 150,000 | |||
KM | 240,000 | ||||
HOURS | 12 months | ||||
MACK PREMIUM FULLY FORMULATED COOLANT |
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Mack Premium Fully Formulated Coolant (Replace) | MILES | 300,000 | 150,000 | ||
KM | 500,000 | 240,000 | |||
HOURS | 24 months | 12 months | |||
Mack Premium Fully Formulated Coolant Filter (Replace) | TIME | At every oil change | |||
MISCELLANEOUS |
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Valve Adjustment | MILES | 150,000 / then every 300,000 | |||
KM | 240,000 / then every 500,000 | ||||
TIME | 12 months / then every 24 months | ||||
Fan and Accessory Drive Belt (Replace) | MILES | 300,000 | 150,000 | ||
KM | 500,000 | 240,000 | |||
TIME | 36 months | 12 months | |||
Mack Premium Air Filter and Fuel Tank Ventilation Filter (Replace) | TIME | Maximum 24 months | |||
TRANSMISSION AND AXLES |
NORMAL DUTY | HEAVY DUTY | SEVERE DUTY | ||
m DRIVE TRANSMISSION | |||||
m DRIVE™ | |||||
Transmission oil and filter (Replace) Oil quality: Mack Transmission Oil 97318* |
MILES | 500,000 | Not Allowed | ||
KM | 800,000 | ||||
TIME | 60 months | ||||
mDRIVE™; mDRIVE™ Severe Duty and mDRIVE™ with Crawler Gears | |||||
Transmission oil and filter (Replace) Oil quality: Mack Transmission Oil 97319* |
MILES | 500,000 | 250,000 | ||
KM | 800,000 | 400,000 | |||
TIME | 60 months | 2500 h | |||
AXLES | |||||
Rear Axle Oil (Replace) | MILES | 500,000 | 80,000 | ||
KM | 800,000 | 125,000 | |||
TIME | 36 months | 12 months | |||
CHASSIS |
NORMAL DUTY | HEAVY DUTY | SEVERE DUTY | ||
Mack Premium Chassis Lubrication | MILES | 15,000 | 10,000 | ||
KM | 24,000 | 16,000 | |||
TIME | 12 months | ||||
Electrical System Connectors (Check) | TIME | Every 6 months. | |||
Power Steering Fluid and Filter (Replace) | MILES | 150,000 | |||
KM | 240,000 | ||||
12 months | |||||
Air Dryer Coalescing Cartridge (Replace) | MILES | 150,000 | |||
KM | 240,000 | ||||
TIME | 12 months |
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