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John Deere 4.5 Litre Diesel Engines
Industrial engine specifications
Generator set engine specifications

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Specification Sheets
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Deere 4045 PowerTech M Tier 3 engineInterim Tier 4 PowerTech™ M 4045 Industrial Engine
This 4.5L, 4-cylinder, engine meets emissions requirements without sacrificing performance. Its latest features include a mechanical unit pump and a fixed geometry turbocharger. Torque levels and transient response time meet or exceed Tier 3/Stage III A.

Tier 3 PowerTech™ Plus 4045 Industrial Engine
This 4.5L, 4-cylinder engine meets emissions requirements without sacrificing performance. New features include cooled exhaust gas recirculation, variable geometry turbocharger, power bulge, 4-valve cylinder heads, and a high-pressure common rail fuel system. Power ratings, fuel economy, torque levels, transient response time, and other features meet or exceed Tier 2/Stage II.

Tier 3 PowerTech™ E 4045 Industrial Engine
This 4.5L, 4-cylinder, engine meets emissions requirements without sacrificing performance. New features include high-pressure common rail fuel system, full authority electronic engine controls, and a fixed geometry turbocharger. Torque levels and transient response time meet or exceed Tier 2/Stage II.

Tier 1 PowerTech™ 4045 Industrial Diesel Engine
This 4-cylinder, 4.5L engine has world-class performance that is compact, quiet and light. It makes this engine a perfect choice for low horsepower applications.

Features Deere PowerTech 4045D engine
Engine performance - M-Interim Tier 4, Plus-Tier 3
  • Multiple rated speeds to further reduce noise and improve fuel economy
  • Jet fiew capable in 24V configuration (M-Interim Tier 4)
  • Higher peak-torque ratings (E-Tier 3)
  • Better transient response time (Plus-Tier 3)
  • Greater levels of low-speed torque (Plus & E-Tier 3)
  • Power bulge feature (Plus & E-Tier 3)
Cooled EGR - Exhaust Gas Recirculation - Plus-Tier 3
  • EGR cools and mixes measured amounts of cooled exhaust gas with incoming fresh air to lower peak combustion temperatures, thereby reducing NOx.
Mechanical Rotary Fuel Pump - M-Interim Tier 4
  • The timing and fuel injection pressures are optimized to maximize performance and fuel economy at a given rated speed
Variable Geometry Turbocharger (VGT) - Plus-Tier 3
  • Varies exhaust pressure based on load and speed to insure proper EGR flow; greater low-speed torque, quicker transient response, higher peak torque, and best-in-class fuel economy.
Fixed Geometry Turbocharger - M-Interim Tier 4, E-Tier 3
  • 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.
High-Pressure Common-Rail (HPCR) and Engine Control Unit (ECU) - Plus & E-Tier 3
  • 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 the injection
4 - valve cylinder head - Plus-Tier 3
  • The 4-valve cylinder head provides excellent airflow resulting in greater low-speed torque and better transient response. Cross flow design
2 - valve cylinder head - M-Interim Tier 4, E-Tier 3
  • Cross flow head design that provides excellent breathing from a lower cost two-valve cylinder head
Air-to-air aftercooled - Plus-Tier 3
  • 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.
John Deere Electronic Engine Controls - E-Tier 3
  • 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 to reduce wiring stress and provide greater durability and improved appearance
  • Factory-installed, engine mounted ECU or remote-mounted ECU comes with wiring harness and associated components. Industry-standard SAE J1939 interface communicates with other vehicle systems, eliminating redundant sensors and reducing vehicle installed cost
Compact size - M-Interim Tier 4, Plus-Tier 3
  • Horsepower/displacement ratio is best in class (Plus-Tier 3)
  • Lower installed cost
  • Mounting points are the same as previous engine models
Additional Features - M-Interim Tier 4, E-Tier 3, PowerTech-Tier 1
  • Self-adjusting poly-vee fan drive
  • Forged steel connecting rods
  • Replaceable wet-type cylinder liners
  • Either-side service
  • 500 hour oil change
  • Optional balancer shafts (M-Interim Tier 4, PowerTech-Tier 1)
  • Standard gear auxiliary drive (E-Tier 3, PowerTech-Tier 1)
Additional Features - Plus-Tier 3
  • Glow plugs
  • Gear-driven auxiliary drives
  • 500-hour oil change
  • self-adjusting poly-vee fan drive

Industrial engine specifications
all 4045 industrial engines
all Interim Tier 4 PowerTech™ M 4045 Industrial Engines: 74-99 hp (55-74 kWm)
all Tier 3 PowerTech™ Plus 4045 Industrial Engines: 149-173 hp (111-129 kWm)
all Tier 3 PowerTech™ E 4045 Industrial Engines: 84-139 hp (63-104 kWm)
all Tier 1 PowerTech™ 4045 Industrial Diesel Engines: 48-173 hp (36-129 kWm)

Generator set specifications
all 4045 generator drive engines
all 4045 PowerTech Plus generator drive engines: 197 hp (147 kWm)
all 4045 PowerTech M generator drive engines: 75-99 hp (56-74 kWm)
all 4045 PowerTech E generator drive engines: 99-197 hp (74-147 kWm)
all 4045 PowerTech Tier 1 & 2 generator drive engines: 67-192 hp (50-143 kWm)

1500 rpm/50 Hz ratings available. Electrical power is calculated from typical generator efficiency and fan power percentages. Applications may vary.

Updated March 2012