Features
Get details on 225 to 400 hp, 168 to 298 kW John Deere 6090HF485 industrial diesel engines for OEM equipment, including features, specs, and integrated support.
Expand All4-valve cylinder head
- The 4-valve cylinder head provides excellent airflow resulting in greater low-speed torque and better transient response. New 4-valve U-flow head design
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 the injection
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
Variable geometry turbocharger (VGT)
- 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.
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 are the same as Tier 2/Stage II engine models
Engine performance
- Multiple rated speeds to further reduce noise and improve fuel economy
- New higher peak torque ratings
- Better transient response time
- Greater levels of low speed torque
- Higher levels of power bulge
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 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
Additional features
- Gear-driven auxiliary drives
- 500-hour oil change
- Self-adjusting poly-vee fan drive
- Single-piece low friction piston
- Optional rear PTO
- Low-pressure fuel system with "auto-prime" feature
- Directed top-liner cooling
Specifications
Expand AllEmissions Certifications
- Less Regulated
- Tier 3
- Stage IIIA equivalent
General Engine Data
- Model
- 6090HF485
- Number of cylinders
- 6
- Displacement-- L (cu in)
- 9 (549)
- Bore and Stroke-- mm (in)
- 118.4 x 136.0 (4.66 x 5.35)
- Compression Ratio
- 16.0 : 1
- Engine Type
- In-line, 4-Cycle
- Aspiration
- Turbocharged and air-to-air aftercooled
- Length - mm (in)
- 1208 (47.6)
- Width-- mm (in)
- 630 (24.8)
- Height-- mm (in)
- 1113 (43.8)
- Weight, dry - kg (lb)
- 901 (1986)
Performance Data Range
- Intermittent - Rated power/Rated speed
- 242-280 kW (325-375 hp) @2000-2200 rpm
- Intermittent - Peak power
- 261-280 kW (350-375 hp) @1800-2200 rpm
- Intermittent - Power bulge
- 0-8 % @1800 rpm
- Intermittent - Peak torque
- 1530-1543 N·m (1128-1138 ft-lb) @1500-1800 rpm
- Intermittent - Torque rise
- 27-32%
- Heavy Duty - Rated power/Rated speed
- 224-242 kW (300-325 hp) @2000-2200 rpm
- Heavy Duty - Peak power
- 243 kW (326 hp) @1800-2200 rpm
- Heavy Duty - Power bulge
- 0-8 % @1800 rpm
- Heavy Duty - Peak torque
- 1421 N·m (1048 ft-lb) @1500 rpm
- Heavy Duty - Torque rise
- 33-35%
- Continuous - Rated power/Rated speed
- 168-224 kW (225-300 hp) @2000-2200 rpm
- Continuous - Peak power
- 187-224 kW (251-300 hp) @1800-2200 rpm
- Continuous - Power bulge
- 0-11 % @1800 rpm
- Continuous - Peak torque
- 1095-1313 N·m (808-968 ft-lb) @1500 rpm
- Continuous - Torque rise
- 35-36%