Engine, 4.5L PowerTech E™ (2-valve) and 4.5L PowerTech Plus™ (4-valve) power ratings and specifications
PowerTech E (2-valves per cylinder)

PowerTech E (2-valves per cylinder)

PowerTech Plus (4-valves per cylinder)

PowerTech Plus (4-valves per cylinder)

Tractor Models and Horsepower
All John Deere 6030 Premium Series tractors feature the reliable and proven 4.5L (276 cu. in.) engines. These air-to-air aftercooled engines deliver constant power over a wide range of rpm with a power bulge above rated power and excellent torque characteristics.
Model and horsepower outputs are shown in the chart below.


Engine Displacement

Rated PTO hp

2300 RPM

Rated Engine hp

 2300 RPM

97/68/EC Standard


4.53L (276 ci.)

75 hp

94 hp 


4.53L (276 ci.)

85 hp

105 hp


4.53L (276 ci.)

95 hp

115 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. 


You can use the 97/68EC horsepower ratings in the above chart to compare to competitor claims of “engine only” power.



PTO power and power bulge
The John Deere exclusive single injector control, electronic fuel injection system and other key engine parts work together senses engine load and instantly responds as needed to pull through tough spots.   This reduces engine rpm fluctuation resulting in the reduced need to downshift the transmission.  Fewer shifts results in less ground variations, providing more overall tractor productivity. 
To match the engine power characteristics and improve economy of operation, the rated engine speed is 2300 RPM.
There are several key engine design features that reduce fuel consumption.
PowerTech E (2-valve) performance curve

PowerTech E (2-valve) performance curve

PowerTech Plus (4-valve) performance curve

PowerTech Plus (4-valve) performance curve

Torque Rise Comparisons

All 6030 Premium Series tractor engines have a working speed range of 1000 – 2300 rpm. Constant horsepower range is from 1500-2300 rpm.


Both the PowerTech E (2-valve) and PowerTech Plus (4-valve) deliver the power when you need it the most. The 2-valve PowerTech E boosts a 5% power bulge at 2100 rpms with 33% torque rise at 1600 rpms. The Power Tech Plus weighs in with even more. A 7% power bulge at 2100 rpms and a torque rise of 35% at 1800 rpms.


There are new performance characteristics of the 4.5L engines that assure excellent performance in most any situation.   On the PowerTech Plus engine key features such as the Variable Geometry Turbocharger (VGT) and 4-valve head provide the ability to accomplish faster torque rise and increased fuel economy.


Both PowerTech  engines reach peak torque quickly. In the charts you can see when compared with previous models, 6030 Premium Series tractors reach peak torque 35% faster.


The Power Tech Plus (4-valve) provides 14% more torque rise and faster than technology utilized on the 6020 series.  Maximum torque rise is achieved at 1800 rpm compared to the previous 1500 rpm. 


This provides:

·         Power through tough spots, faster

·         Return to target speed faster

·         More constant working speeds

·         Reduced operating costs


The Power Tech E (2-valve) engine incorporates proven technology.  Torque rise is 2.3% greater than that of the 6020 Series with maximum torque rise achieved at 1600 rpm - which is 100 rpm faster than the 6020 series.


From rated speed to peak torque the 6030 Premium Series PowerTech Plus engine drops only 500 rpm to reach peak torque, a 300 rpm increase over the 6020.  Dividing the rpm change, it shows that the 6030 Premium Series 4.5L engine will achieve peak torque at a 40% quicker rate than the models it replaces.


The operator of a 6030 Premium Series tractor will experience the increased tractor performance made with plenty of torque and overall power. Improved load starting, pulling through tough spots or transporting will be appreciated.


The comparison chart also shows that, regardless of engine selection (2-valve or 4-valve) a current 6020 Series owner will be satisfied with the 6030 Premium Series model performance.



Reduced Fuel Consumption
There are several new designs in all of the 6030 Premium Series tractors that have made a favorable impact fuel economy.  These designs work together to provide a more efficient use of engine power resulting in less fuel consumption.

The new features are as follows:

The PowerTech Plus (4-valve) 4.5L engine features include:

·         16-valve head (4 valves per cylinder)

·         Variable geometry turbocharger

·         High pressure common rail injection

·         Single injector control

·         Exhaust gas recirculation

John Deere PowerTech E (2-valve) 4.5L engine features include

·         8-valve head (2 valves per cylinder)

·         Multiple injection strategy which includes two small pre-injections prior to top dead center followed by the primary injection

·         Fixed Geometry turbocharger

·         Exhaust gas recirculation technology is NOT utilized on the Power Tech E.



A head-to-head comparison lists the four key comparative features

        PowerTech E        PowerTech Plus
 Injection   Multiple    Single
 Valves   2 per cylinder    4 per cylinder
 Turbocharger   Fixed    Variable
 EGR   None    Cooled
Initial factory observed comparisons verify that John Deere technology meets or exceeds competitive technology. John Deere technology delivers more power, higher and faster torque.
 PowerTech E (2-valve) Competitive Comparison:


John Deere PowerTech E 4.5L

  Cummins   QSB


  4.4L / 4.9L
 Cylinder Head





 Fuel Injection





 Multiple Injection





 Charge Air Cooling





 Hot EGR





 Fuel Economy Change





PowerTech Plus (4-valve) Competitive Comparison:


John Deere PowerTech Plus 4.5L/6.8L


 Cylinder Head  4-valve  4-valve  4-valve  4-valve
 Fuel Injection  HPCR  HPCR  HPCR  HPCR
 Multiple Injection  Yes  Yes  Yes  Yes
 Charge Air Cooling  Yes  Yes  Yes  Yes
 Turbocharging  VGT  Wastegate  Wastegate  Wastegate
 Cooled EGR  Yes  No  No  No
 Fuel Economy Change  increase  decrease  decrease  decrease
       Wastegated Turbochargers:            Less efficient - higher fuel consumption
      Fixed Turbochargers:                     Slower response and lower torque
      Hot EGR:                                     Retarded timing, recirculated HOT EXHAUST for NOx   
                                                       control, high fuel consumption

Controlling fuel consumption while meeting U.S. emission regulations of Tier III mandates will be a challenge for all manufacturers to address. The technological approach which John Deere has pursued with the 4-valve PowerTech Plus ™ engine is showing best-in-class performance utilizing factory observed data against the competition.  (Note: Official Nebraska Testing will occur in Spring-2007).    


When evaluating hp-hr/gal fuel consumption under 75 % load (which is the normal operating load for Utility Tractors), the Power Tech Plus (4-valve) is:

  • 10.8% better than Cummins
  • 11.2% better than Perkins
  • 8.8% better than the 2-valve John Deere PowerTech E (2-valve)


John Deere factory observed testing has shown that most customers operating the PowerTech Plus (4-valve) engine at 75% load factor will see between 4 and 9% increase in fuel economy when compared to a 6020 Series tractor. To ensure accuracy when conducting this fuel consumption comparison, both 6020 Series and 6030 Premium Series must be in the same conditions under the same load.  When John Deere engineers make a comparison test, every effort is made to test tractors with the same load, ground speed, and environmental conditions.  Your results may vary from the 4-% increase in fuel economy and actual gains in fuel economy will depend on how the tractor is operated.

Additional reduction in fuel consumption can also come from the IVT™ (Infinitely Variable Transmission) on the 6330 and 6430 Premium Series Tractor. See the IVT section of this manual for more details.

Engine basic specifications

General Specifications


John Deere PowerTech 4.5 L


PowerTech Plus (4-valve) --- Base engine


PowerTech E (2-valve) --- Optional engine

Rated Speed

2,300 rpm


Diesel, in-line, 4-cylinder, wet-sleeve



PowerTech Plus --Variable geometry turbocharger with air to air inter-cooling and exhaust gas recirculation PowerTech E -- Fixed geometry turbocharger with air-to-air intercooler.

Filter, engine air

    Dual stage with safety element and pre-cleaner


4.54L (276 cu. In)

Bore and stroke

Bore = 4.19 in. (106mm); Stroke = 5.00 in. (127mm)

Compression ratio

PowerTech Plus = 17.0:1,  PowerTech E = 19.0:1


Pressure System: Full-flow filtration with bypass

Filter, oil

Replaceable cartridge style oil filter

Cooling Fan Clutch

Viscous Fan Drive

Fuel System (type)

High pressure common rail, electronically injected and governed with electric fuel transfer pump; self priming

Filter system

Standadyne fuel filter

Filter, primary

1193 sq. in. (7700 cm2)

(The engine design utilizes metric-sized components and hardware for ease of service and commonality with the remainder of the tractor.)
Oil and coolant drain intervals

The large oil sump provides oil capacity for long, 500 -hour change interval when John Deere PLUS-50™ oil and a John Deere oil filter are used.


There is special engine break-in oil used at the factory to assure proper seating of all components.  The oil and filter should be changed after the first 100 hours of operation.


To further reduce maintenance requirements, long life coolant/antifreeze with coolant conditioner is used as the factory fill on all 6030 Premium Series tractors.  The first required change interval is at 3 years or 3000 hours.  If John Deere Cool-Gard™ is not used as the replacement fluid; intervals are reduced to 2 years or 2000 hours.  The only item that is required on an annual basis for your cooling system is a simple test of coolant conditioner.

Oil and coolant capacities

Tractor Model






Crankcase -

2wd or MFWD

4.2 U.S. Gal (16L)

 4.2 U.S Gal (16L)

 4.2 U.S Gal (16L)

Cooling  System

3.6 U.S. Gal (13.5L)

3.6 U.S. Gal (13.5L)

3.6 U.S. Gal (13.5L)

Last Updated : 24-Jul-2013