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PowerTech M engines

PowerTech M 2.4L and 4.5L Diesel Engines

Interim Tier 4 and Stage III B PowerTech M Diesel Engine Technologies

Power Ranges
2.4L: 36 kW (48 hp)
4.5L: 55 kW (74 hp)

2-Valve Cylinder Head
Cross-flow (4.5L) and U-flow (2.4L) head design provides excellent breathing from a lower-cost 2-valve cylinder head.

Mechanical Unit Pump (MUP) Fuel System
This system uses camshaft-driven MUPs, connected to the injectors by a short fuel line. This short fuel line between the unit pumps and the injectors helps to alleviate after-injection, secondary injection, and other injection abnormalities (2.4L).

Mechanical Rotary Fuel Pump
The timing and fuel injection pressures are optimized to maximize performance and fuel economy at a given rated speed (4.5L).

Fixed Geometry Turbocharger
Fixed geometry turbochargers are sized for a specific power range and optimized to provide excellent performance across the entire torque curve. They are also designed to maximize fuel economy between the engine’s rated speed and peak torque.

In turbocharged engines, the air is pre-compressed. Due to the higher pressure, more air is supplied into the combustion chamber allowing a corresponding increase in fuel injection, which results in greater engine output.

Compact Size
Mounting points are the same as previous engine models.

Engine Performance

  • Updated mechanical fuel pumps
  • Improved governor serviceability
  • Enhanced timing cover access 

Additional Features

  • Self-adjusting poly-vee fan drive
  • Forged-steel connecting rods
  • Either-side service
  • 500-hour oil change
  • Glow plugs (2.4L)
  • Optional balancer shafts
  • Optional air intake grid heater (4.5L)


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