Tractor models and horsepower

PowerTech engine

Overview

All John Deere 6E Series Tractors feature the reliable and proven 4.5L (275-cu in.) engines. These engines deliver constant power over a wide range of rpm with a power bulge above rated power and excellent torque characteristics.

The 6E Series, while being value-featured and competitively priced, are built with John Deere's long-standing reputation for reliability, durability, and maintainability.

Model	Displacement	Rated power take-off (PTO) power 2100 rpm	Rated engine power 97/68/EC standard
6105E	4.5 L (275 cu in.)	66 kW (89 hp)	77 kW (105 hp)
6120E(H)	4.5 L (275 cu in.)	76 kW (102 hp)	88 kW (120 hp)
6135E	4.5 L (275 cu in.)	86 kW (115 hp)	99 kW (135 hp)

Rated engine horsepower ratings are included for reference to competitor's gross or engine-only power ratings. There are several ratings systems used by other manufacturers. John Deere uses the horsepower-rating standard 97/68/EC, which is widely used in Europe for various regulations.

How is engine-only rated and maximum power determined?

John Deere engineering uses a precise procedure to measure engine-only power levels. The 97/68/EC standard is required in the European Union (EU) as an emission test, so there is some relation to the power a tractor has as a whole functioning unit; however, the procedure requires only that a production engine and radiator are used on a dynamometer test. Use the 97/68/EC horsepower ratings in the above chart to compare to competitor claims of engine-only power.

Benefits of PTO power and power bulge

The John Deere exclusive single-injector control, electronic fuel injection system, and other key engine parts work together to sense engine load and instantly respond as needed to pull through tough spots. This reduces engine rpm fluctuation, resulting in the reduced need to downshift the transmission. Fewer shifts result in fewer ground variations, providing more overall tractor productivity.

To match the engine power characteristics and improve economy of operation, the rated engine speed is 2200 rpm.

Feature and benefit overview

High-pressure common rail fuel system

Higher injection pressures (up to 1896 bar [27,500 psi]), precise variable injection pressure, variable timing control, multiple injections

Four-valve cylinder head

Crossflow head design provides excellent breathing from a lower-cost four-valve cylinder head.

Turbocharged

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.

Turbochargers

Precisely matched to the power level and application, the 6Es are equipped with a wastegate (to divert exhaust gases) turbo.

Air-to-air intercooling

This is 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 the engine to meet emission requirements with better fuel economy and the lowest installed costs.

Compact size

4.5 L (275 cu in.), 4 cylinders

Engine performance

Power bulge feature
Increased low-speed torque
Multiple rated speeds to further reduce noise and improve fuel economy
Higher peak torque ratings
Faster torque rise

John Deere electronic engine controls

Monitors critical engine functions providing warning and/or shutdown to prevent costly engine repairs; eliminates need for add-on governing components; all lowering total installed costs
Snapshot diagnostic data that can be retrieved using commonly available diagnostic service tools
Common wiring interface connector for vehicles or available OEM instrumentation packages; solid conduit and T-connectors to reduce wiring stress and improved durability and appearance
Factory-installed engine-mounted engine control unit (ECU), wiring harness, and associated components; industry standard SAE J1939 interface which communicates with other vehicle systems, eliminating redundant sensors and reducing vehicle total installed cost

Additional features

Self-adjusting, poly v-fan drive
Forged-steel connecting rods
Replaceable wet-type cylinder liners
500-hour oil change

Details:

Engine performance

Model	6105E	6120E(H)	6135E
Environmental Protection Agency (EPA) tier level	Final Tier 4 (FT4)	FT4	FT4
Engine model	4045H	4045H	4045H
97/68/EC at rated speed	77 kW (105 hp)	88 kW (120 hp)	99 kW (135 hp)
Rated engine speed	2200 rpm	2200 rpm	2200 rpm
PTO operating speed	2100 rpm	2100 rpm	2100 rpm
Maximum torque engine speed	1600 rpm	1600 rpm	1600 rpm
Fast idle speed	2275+10 rpm	2275+10 rpm	2275+10 rpm
Low idle speed	900+10 rpm	900+10 rpm	900+10 rpm

Torque curves

6135E torque curves graph

6120E(H) torque curves graph

6105E torque curves graph

Engine specifications

Model	6105E	6120E(H)	6135E
Engine	PowerTech PWL	PowerTech PWL	PowerTech PWS
Engine model	4045H	4045H	4045H
Size	4.5 L (275 cu in.)	4.5 L (275 cu in.)	4.5 L (275 cu in.)
Number of cylinders	4	4	4
Valves per cylinder	4	4	4
Aspiration	Turbo and aftercooled	Turbo and aftercooled	Turbo and aftercooled
Engine management	Electronic	Electronic	Electronic
Fuel delivery	High-pressure common rail (HPCR)	HPCR	HPCR
Rated engine speed	2200 rpm	2200 rpm	2200 rpm
PTO operating speed	2100 rpm	2100 rpm	2100 rpm
Maximum torque operating speed	1600 rpm	1600 rpm	1600 rpm
Fast idle speed	2275 rpm	2275 rpm	2275 rpm
Low idle speed	900 rpm	900 rpm	900 rpm
Rated PTO power	66 kW (89 hp) at 2100 rpm	76 kW (102 hp) at 2100 rpm	86 kW (115 hp) at 2100 rpm
Rated engine power	77 kW (105 hp) at 2200 rpm [97/68/EC]	88 kW (120 hp) at 2200 rpm [97/68/EC]	99 kW (135 hp) at 2200 rpm [97/68/EC]
Power bulge	3 percent at 2000 rpm	3 percent at 2000 rpm	3 percent at 2000 rpm
Peak torque	432 Nm (318 lb-ft) at 1600 rpm	494 Nm (364 lb-ft) at 1600 rpm	538 Nm (397 lb-ft) at 1600 rpm
Torque rise	29 percent at 2200	29 percent at 2200	25 percent at 2200
Compression	16.8:1	16.8:1	16.8:1
Bore x stroke	11.9 x 12.7 cm (4.7 x 5 in.)	11.9 x 12.7 cm (4.7 x 5 in.)	11.9 x 12.7 cm (4.7 x 5 in.)

6120E Utility Tractor