MP®8
- power
- 415 – 505
- hp max
- torque
- 1,650 – 1,900
- lb-ft
- displacement
- 13
- liters
Higher standards.
Lower emissions.
Purposefully designed for power and fuel economy, the MP®8 engine delivers horsepower and torque across a wide operating range to outperform on heavy-duty vocational and highway workloads.
Efficient integration
As part of our legendary integrated powertrain, all our MP engines work seamlessly with Mack axles and transmissions for improved efficiency, increased uptime and lower operating costs over the lifetime of your truck.
Intake throttle
MP Series engines are equipped with intake throttles to improve heat management. They help increase the exhaust gas temperature at idle and low load, increasing the efficiency of the exhaust aftertreatment.
Turbo compounding
MP engines feature a turbine to extract energy from exhaust that would otherwise be lost as heat. By converting exhaust energy into additional torque on the crankshaft, it improves efficiency and reduces emissions.
Two-speed coolant pump
The two-speed coolant pump reduces parasitic loss by delivering the right amount of cooling capacity when maximum cooling isn’t required, for an extra 0.5 to 0.6 percent in fuel economy.
Common rail fuel system
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.
Factory-installed dual PTO
The available factory-installed dual PTO allows customers to run applications that require more power without sacrificing the performance of the truck.
Efficiency over everything.
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]