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| PowerTech Plus Technologies |
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PowerTech Plus
4.5L, 6.8L, 9.0L, and 13.5L Diesel Engines
Power Ranges
4.5L: 111-129 kW (149-173 hp)
6.8L: 134-205 kW (180-275 hp)
9.0L: 168-298 kW (225-400 hp)
13.5L: 261-448 kW (350-600 hp)
4-Valve Cylinder Head
The 4-valve cylinder head provides excellent airflow resulting in greater low-speed torque
and better transient response time. There are the cross-flow design (4.5L, 6.8L, and 13.5L)
and the new 4-valve U-flow head design (9.0L).
High-Pressure Common-Rail (HPCR) and Engine Control Unit (ECU)
The HPCR fuel system provides variable common-rail pressure, multiple injections, and higher injection pressures, up to 1600 bar (23,000 psi). It also controls fuel injection timing and
provides precise control for the start, duration, and end of injection (4.5L, 6.8L, and 9.0L).
Electronic Unit Injector (EUI) and Engine Control Unit (ECU)
The EUI fuel system provides variable common-rail pressure, multiple injections, and higher injection pressures up to 2000 bar (29,000 psi). It also controls fuel injection timing and provides precise control for start, duration, and end of injection (13.5L).
Cooled Exhaust Gas Recirculation (EGR)
EGR cools and mixes measured amounts of cooled exhaust gas with incoming fresh air to lower peak combustion temperatures, thereby reducing NOx. Learn more about common EGR myths.
Variable Geometry Turbocharger (VGT)
Varies exhaust pressure based on load and speed to ensure proper EGR flow; greater
low-speed torque, quicker transient response, higher peak torque, and best-in-class fuel
economy.
Air-to-Air Aftercooled
This is the most efficient method of cooling intake air to help reduce engine emissions while
maintaining low-speed torque, transient response time, and peak torque. It enables an engine to meet emissions regulations with better fuel economy and the lowest installed costs.
Compact Size
- Horsepower/displacement ratio is best-in-class
- Lower installed cost
- Mounting points for Tier 3/Stage III A engine models same as Tier 2/Stage II engine models
Engine Performance
- Multiple rated speeds to further reduce noise and improve fuel economy
- Higher level of peak torque
- Better transient response time
- Greater levels of low-speed torque
- New power bulge feature (4.5L and 6.8L)
- Higher levels of power bulge (9.0L and 13.5L)
John Deere Electronic Engine Controls
Electronic engine controls monitor critical engine functions, providing warning and/or shutdown to prevent costly engine repairs and eliminate the need for add-on governing components all lowering total installed costs. Snapshot diagnostic data that can be retrieved using commonly available diagnostic service tools.
Controls utilize new common wiring interface connector for vehicles or available OEM instrumentation packages; new solid conduit and “T” connectors reduce wiring stress and provide greater durability and improved appearance.
Factory-installed, engine-mounted ECU or remote-mounted ECU wiring harness and associated components. Industry-standard SAE J1939 interface communicates with other vehicle systems, eliminating redundant sensors and reducing vehicle installed cost.
Additional Features
- Glow plugs (4.5L and 6.8L)
- Gear-driven auxiliary drives (4.5L, 6.8L, 9.0L, and 13.5L)
- 500-hour oil change (4.5L, 6.8L, 9.0L, and 13.5L)
- Self-adjusting poly-vee fan drive (4.5L, 6.8L, 9.0L, and 13.5L)
- R.H. and L.H. engine mounted fuel filters (6.8L and 13.5L)
- Single-piece low friction piston (9.0L and 13.5L)
- Optional rear PTO (9.0L and 13.5L)
- Low-pressure fuel system with “auto-prime” feature (9.0L and 13.5L)
- Directed top-liner cooling (9.0L and 13.5L)
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