6090HF485 Variable Speed | Marine Diesel Engine

4-valve cylinder head

The 4-valve cylinder head, with U-flow head design, provides excellent airflow resulting in greater low-speed torque and better transient response.

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 ensure proper EGR flow; greater low-speed torque, quicker transient response, higher peak torque, and best-in-class fuel economy.

Air-to-air aftercooled

An 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

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 common wiring interface connector for vehicles or available OEM instrumentation packages; solid conduit and "T" connectors 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 auxillary drives
Self-adjusting poly-vee fan drive
Single-piece low friction piston
Optional rear PTO
Low-pressure fueling system with "auto-prime" feature
Directed top-liner cooling

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)

Intermittent - Rated power/Rated speed	280 kW (375 hp) @2200 rpm
Intermittent - Peak power	280 kW (375 hp) @2200 rpm
Intermittent - Power bulge	0 %
Intermittent - Peak torque	1543 N·m (1138 ft-lb) @1500 rpm
Intermittent - Torque rise	27%

6090HF485 Variable SpeedIndustrial Marine Engine

Features

4-valve cylinder head

High-pressure common-rail (HPCR) and engine control unit (ECU)

Cooled exhaust gas recirculation (EGR)

Variable geometry turbocharger (VGT)

Air-to-air aftercooled

John Deere electronic engine controls

Additional features

Specifications

Emissions Certifications

General engine data

Performance data range

Brochures

Learn More

Engine Parts

Explore More

Connect with us

Find Sales or Services

IMO Tier 2
EPA Tier 3

6090HF485 Variable SpeedIndustrial Marine Engine

SHARE

Features

4-valve cylinder head

High-pressure common-rail (HPCR) and engine control unit (ECU)

Cooled exhaust gas recirculation (EGR)

Variable geometry turbocharger (VGT)

Air-to-air aftercooled

John Deere electronic engine controls

Additional features

Specifications

Emissions Certifications

General engine data

Performance data range

Brochures

Learn More

Engine Parts

Explore More

Connect with us

Find Sales or Services