MP®8

Name: Mack Trucks
Address: 7825 National Service Rd, Greensboro, NC, 27409
Telephone: 336-291-9001

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.

Performance Specifications

Maxidyne®

High power for low-speed, high-performance and severe-duty conditions, especially off-road
- 425 HP
  - Peak Power
    
    425 HP
  - Peak Power RPM
    
    1500-1700
  - Peak Torque
    
    1560 lb-ft
  - Peak Torque RPM
    
    1000-1300
  800,900,1000,1100,1200,1300,1400,1500,1600,1700,1800,1900,1950,2000,2100,2200 185,248,298,328,358,388,418,425,425,425,415,399,380,365,325, 1214,1446,1560,1560,1560,1560,1560,1493,1398,1318,1210,1102,1024,958,812,
- 455 HP
  - Peak Power
    
    455 HP
  - Peak Power RPM
    
    1400-1700
  - Peak Torque
    
    1760 lb-ft
  - Peak Torque RPM
    
    1050-1300
  800,900,1000,1100,1200,1300,1400,1500,1600,1700,1800,1900,1950,2000,2100,2200 185,248,317,363,396,429,455,455,455,455,444,426,403,381,325, 1214,1446,1662,1760,1760,1760,1711,1597,1497,1407,1295,1177,1085,1001,812,
- 505 HP
  - Peak Power
    
    505 HP
  - Peak Power RPM
    
    1500-1700
  - Peak Torque
    
    1860 lb-ft
  - Peak Torque RPM
    
    1150-1400
  800,900,1000,1100,1200,1300,1400,1500,1600,1700,1800,1900,1950,2000,2100,2200 189,253,323,386,410,458,493,505,505,505,491,467,445,421,339, 1239,1475,1696,1844,1860,1860,1860,1752,1643,1547,1434,1291,1199,1106,848,
MaxiCruise®

Balanced performance for rolling interstates and on/off-road work
- 415 HP
  - Peak Power
    
    415 HP
  - Peak Power RPM
    
    1400-1700
  - Peak Torque
    
    1660 lb-ft
  - Peak Torque RPM
    
    1000-1300
  800,900,1000,1100,1200,1300,1400,1500,1600,1700,1800,1900,1950,2000,2100,2200 185,248,317,349,380,410,415,415,415,415,405,379,356,294,, 1214,1446,1660,1660,1660,1658,1554,1459,1368,1288,1181,1048,960,772,,
- 445 HP
  - Peak Power
    
    445 HP
  - Peak Power RPM
    
    1300-1800
  - Peak Torque
    
    1860 lb-ft
  - Peak Torque RPM
    
    1150-1300
  800,900,1000,1100,1200,1300,1400,1500,1600,1700,1800,1900,1950,2000,2100,2200 185,248,317,378,414,445,445,445,445,445,445,426,403,207,, 1214,1446,1662,1807,1860,1860,1709,1595,1495,1407,1295,1177,1085,542,,
- 505 HP
  - Peak Power
    
    505 HP
  - Peak Power RPM
    
    1500-1700
  - Peak Torque
    
    1860 lb-ft
  - Peak Torque RPM
    
    1150-1400
  800,900,1000,1100,1200,1300,1400,1500,1600,1700,1800,1900,1950,2000,2100,2200 189,253,323,386,410,458,493,505,505,505,491,467,445,228,, 1239,1475,1696,1844,1860,1860,1860,1752,1643,1547,1434,1291,1199,599,,
Econodyne®

Maximum efficiency for interstate applications where fuel economy is a priority
- 415 HP
  - Peak Power
    
    415 HP
  - Peak Power RPM
    
    1400-1700
  - Peak Torque
    
    1660 lb-ft
  - Peak Torque RPM
    
    1000-1300
  800,900,1000,1100,1200,1300,1400,1500,1600,1700,1800,1900,1950,2000,2100,2200 185,237,280,308,336,364,385,385,385,385,372,356,330,294,, 1214,1386,1460,1460,1460,1460,1434,1339,1253,1180,1084,983,889,772,, 1214,1446,1660,1660,1660,1658,1554,1459,1368,1288,1181,1048,960,772,,
- 445 HP
  - Peak Power
    
    445 HP
  - Peak Power RPM
    
    1300-1800
  - Peak Torque
    
    1860 lb-ft
  - Peak Torque RPM
    
    1150-1300
  800,900,1000,1100,1200,1300,1400,1500,1600,1700,1800,1900,1950,2000,2100,2200 185,248,298,328,358,388,418,425,425,425,421,417,389,207,, 1214,1446,1560,1560,1560,1560,1560,1493,1399,1317,1229,1153,1048,542,, 1214,1446,1662,1807,1860,1860,1709,1595,1495,1407,1295,1177,1085,542,,
- 505 HP
  - Peak Power
    
    505 HP
  - Peak Power RPM
    
    1500-1700
  - Peak Torque
    
    1860 lb-ft
  - Peak Torque RPM
    
    1150-1400
  800,900,1000,1100,1200,1300,1400,1500,1600,1700,1800,1900,1950,2000,2100,2200 185,248,317,349,360,412,440,440,440,440,428,406,388,224,, 1214,1446,1560,1560,1560,1560,1560,1542,1445,1360,1249,1122,1044,587,, 1239,1475,1696,1844,1860,1860,1860,1752,1643,1547,1434,1291,1199,599,,

Engine Specs
+
- 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]

Maintenance Intervals

Model Year 2011 and Newer Engines Using Mack EOS-4.5 Premium Oil		Normal Duty Greater than 6 mpg Less than 39L/100km	Heavy Duty Greater than 5 mpg Less than 50L/100km	Severe Duty Less than 5 mpg Greater than 50L/100km
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) If idle time is greater than 30%, use the next lower drain interval.	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) If idle time is greater than 30%, use the next lower drain interval.	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	** Drain interval applies to approved EOS-4.5 oil other than Mack Engine Oil EOS-4.5, list can be made available
MP® 7 / MP® 8 or MP®10 with 42 L / 44 Qt Oil Pan: Mack EOS-4* Premium Oil, Filters and Fuel Filters (Replace) If idle time is greater than 30%, use the next lower drain interval.	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) If idle time is greater than 30%, use the next lower drain interval. * Approved oils only, lists can be made available	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
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
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
Valve Adjustment	Miles	150,000 / then every 300,000
	Km	240,000 / then every 500,000
	Hours	12 months / then every 24 months
Fan and Accessory Drive Belt (Replace)	Miles	300,000		150,000
	Km	500,000		240,000
	Hours	36 months		12 months
Mack Premium Air Filter and Fuel Tank Ventilation Filter (Replace)	Time	Maximum 24 months
EXHAUST AFTERTREATMENT SYSTEM		Normal Duty	Heavy Duty	Severe Duty
Diesel Particle Filter (DPF) - Clean	Miles	400,000		250,000
	Km	650,000		400,000
	Hours	10,000		4,500
Diesel Particle Filter (DPF) Ignition Electrode and Nozzle	Miles	150,000
	Km	240,000
	Hours	4,500
Aftertreatment Hydrocarbon Injector (AHI) MY 2011 to 2012 (April) clean AHI nozzle. MY 2012 (May) and newer replace AHI nozzle and data reset.	Miles	150,000
	Km	240,000
	Hours	4,500
DEF, Pump and Tank Filler Neck Filter Drain DEF tank, replace DEF pump main filter, clean DEF tank neck filter.	Miles	150,000
	Km	240,000
	Hours	4,500
TRANSMISSION AND AXLES		Normal Duty	Heavy Duty	Severe Duty
mDRIVE TRANSMISSION
mDRIVE™
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* * Approved oils only, lists can be made available	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
	Time	12 months
Air Dryer Coalescing Cartridge (Replace)	Miles	150,000
	Km	240,000
	Time	12 months

Resources

MP®7 and MP®8 Engines
Download Brochure
Mack Highway Brochure
Download brochure
ClearTech™ One
Download Brochure
Predictive Cruise
Download Brochure
Maintenance Intervals At A Glance
Download Brochure

Find a Mack dealer near you.

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MP®8

Wave Piston

The next evolution in piston design

Common Rail Fuel System

Uncommon power and efficiency

PowerLeash Engine Brake

More confidence while braking

Two-Speed Coolant Pump

Optimized for the situation at hand

Even Distribution of Power

Serious Weight Savings

Assembled in the USA

Performance Specifications

Peak Power

425 HP

Peak Power RPM

1500-1700

Peak Torque

1560 lb-ft

Peak Torque RPM

1000-1300

Peak Power

455 HP

Peak Power RPM

1400-1700

Peak Torque

1760 lb-ft

Peak Torque RPM

1050-1300

Peak Power

505 HP

Peak Power RPM

1500-1700

Peak Torque

1860 lb-ft

Peak Torque RPM

1150-1400

Peak Power

415 HP

Peak Power RPM

1400-1700

Peak Torque

1660 lb-ft

Peak Torque RPM

1000-1300

Peak Power

445 HP

Peak Power RPM

1300-1800

Peak Torque

1860 lb-ft

Peak Torque RPM

1150-1300

Peak Power

505 HP

Peak Power RPM

1500-1700

Peak Torque

1860 lb-ft

Peak Torque RPM

1150-1400

Peak Power

415 HP

Peak Power RPM

1400-1700

Peak Torque

1660 lb-ft

Peak Torque RPM

1000-1300

Peak Power

445 HP

Peak Power RPM

1300-1800

Peak Torque

1860 lb-ft

Peak Torque RPM

1150-1300

Peak Power

505 HP

Peak Power RPM