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John Deere Expands Final Tier 4/Stage IV Offering with No-DPF 4.5L Engine

Complete Final Tier 4/Stage IV lineup introduced at Bauma 2013

WATERLOO, Iowa, April 17, 2013 — John Deere Power Systems has introduced the PowerTech PWL 4.5L engine, which will meet Final Tier 4/Stage IV emissions regulations without a diesel particulate filter (DPF). The 63 kW to 104 kW (85 hp to 140 hp) engine was announced at Bauma 2013 in Munich, and complements the John Deere lineup of Final Tier 4/Stage IV off-highway diesel engines rated 36 kW to 448 kW (48 hp to 600 hp) announced earlier.

John Deere PowerTech PWL Final Tier 4 technology for the 4.5L engine
John Deere PowerTech PWL Final Tier 4 technology for the 4.5L engine. Click to enlarge.

The PowerTech PWL 4.5L engine reduces cost and improves engine packaging by eliminating the DPF — while still meeting customer performance expectations for applications in the 56 kW to 104 kW (75 hp to 140 hp) power segment.

The PowerTech PWL 4.5L is equipped with an Integrated Emissions Control system consisting of selective catalytic reduction (SCR), a diesel oxidation catalyst (DOC) and cooled exhaust gas recirculation (EGR) technology. Elimination of the DPF was enabled through combustion system optimization and improvements in SCR system conversion efficiency.

"We believe the elimination of the DPF will serve OEMs and end users well in the very competitive 56 kW to 104 kW (75 hp to 140 hp) segment, balancing packaging and product cost considerations with performance and operating cost requirements," said John Piasecki, director of marketing, sales and customer support for John Deere Power Systems. "We expect emissions technologies will continue to evolve and improve, and we'll adopt those changes when available to improve the customer experience."

The introduction of the PowerTech PWL 4.5L engine represents the third Integrated Emissions Control system configuration John Deere will offer for Final Tier 4/Stage IV.

For the 36 kW to 55 kW (48 hp to 74 hp) power range, John Deere will offer models using a DOC/DPF without cooled EGR or SCR. The PowerTech PWL 4.5L in the 56 kW to 104 kW (75 hp to 140 hp) power range will be equipped with an Integrated Emissions Control system configured with SCR, a DOC and cooled EGR. Engine models above 104 kW (140 hp) will feature an Integrated Emissions Control system consisting of cooled EGR, a DOC/DPF and SCR. All John Deere Integrated Emissions Control systems are exclusively designed to meet the specific demands of off-highway applications in the given power categories.

"At John Deere, we tailor our Integrated Emissions Control system configurations to meet customer needs and Final Tier 4/Stage IV emissions regulations," Piasecki said. "We're confident that all of our solutions will deliver industry leading performance and value while also meeting required long term emissions compliance."

John Deere did attain an industry leading fuel economy position with its Tier 3/Stage III A and Interim Tier 4/Stage III B engines. With the move to SCR technology for Final Tier 4/Stage IV engines, total fluid economy becomes important, and John Deere is confident that its total fluid operating costs will continue that industry leadership. Total fluid economy takes into account an engine's total fluid consumption, including diesel fuel and diesel exhaust fluid (DEF). DEF consumption with John Deere Final Tier 4/Stage IV engines will be 1 to 4 percent of diesel fuel consumption depending on the application. Low DEF consumption also means 1) the DEF tank size can be smaller, minimizing space required on vehicles, 2) extended DEF filter service intervals, and 3) less on-site bulk storage requirements.

John Deere Final Tier 4/Stage IV engines will provide the same or higher levels of power density and transient response as the Interim Tier 4/Stage III B product lineup.

Models and power ratings for the full John Deere Final Tier 4/Stage IV lineup include:

  • PowerTech EWX 2.9L: 36 kW – 55 kW (48 hp – 74 hp)
  • PowerTech EWX 4.5L: 55 kW (74 hp)
  • PowerTech PWL 4.5L: 63 kW – 104 kW (85 hp – 140 hp)
  • PowerTech PSS 4.5L: 93 kW – 129 kW (125 hp – 173 hp)
  • PowerTech PVS 6.8L: 104 kW – 187 kW (140 hp – 250 hp)
  • PowerTech PSS 6.8L: 168 kW – 224 kW (225 hp – 300 hp)
  • PowerTech PSS 9.0L: 187 kW – 317 kW (250 hp – 425 hp)
  • PowerTech PSS 13.5L: 309 kW – 448 kW (414 hp – 600 hp)

"Staying true to our building block approach, we have adopted the best available technologies to meet Final Tier 4/Stage IV regulations while minimizing the impact on OEMs and end users," Piasecki said. "The Integrated Emissions Control system in its various configurations represents technology optimization that achieves emissions compliance, and delivers the power, performance, ease of operation, fluid efficiency, reliability, durability and economical operating cost customers expect from John Deere."

John Deere has an established record of reliability, accumulating over 22 million operating hours with various aftertreatment technologies. John Deere claims a large dedicated in-house aftertreatment team, working with a mature exhaust filter and SCR supply chain, all to provide a field-proven Final Tier 4/Stage IV product lineup.

The worldwide John Deere dealer network of over 4,000 service locations will be trained and prepared to fully support customers and their Final Tier 4/Stage IV engines.

Posted April 18, 2013
Posted from: Get real, 4/20/13 at 3:42 PM CDT
Put that Massey to work and see how much DEF you will burn. If you are just idling around the yard and moving a few bales, that ain't workin it....
We put a CIH 4WD to work last summer pulling a heavy disc....burnt more fuel than the Deere plus 11% DEF!! And that was only an IT4 tractor...they will need more DEF to get to FT4!! So, when you see some of the false claims made be some mfg'rs that only run DEF that they only use 5%....probably only the truth if you are not working it hard.
Apples to Apples
Posted from: Mitch, 4/20/13 at 12:43 PM CDT
Before we make more false claims not using facts, lets compare apples to apples. What numbers are you, Mr. Idiot, using for your comparisons? 1-4% not 5-15% is your claim. Is the 5-15% Final Tier 4 or are you using 5-15% based on Interim Tier 4 numbers, where are these numbers? And your point that nobody wants to use a second fluid, my question is does anyone want to use a particulate filter? The competition was using DEF but no DPF. By the comment "We believe the elimination of the DPF will serve OEMs and end users well in the very competitive 56 kW to 104 kW (75 hp to 140 hp) segment, balancing packaging and product cost considerations with performance and operating cost requirements," it appears that DPF option wasn't cheap or convenient either! FACT: We have a Massey 8600 with over 500 hours on it that has used less than 10 gal of DEF. So before you “spout off” consider both sides of an argument.
Posted from: John, 4/20/13 at 11:37 AM CDT
Let's not forget that our gov't put these well-intentioned-yet-really-foolish requirements on the manufacturers. Deere's approach is beeter in that it meets these requirements with less fluid cost. Include the JDLink system and you should be able to manage your equipment better to maximize efficiencies!
No end all
Posted from: John Deere stockholder, 4/20/13 at 9:53 AM CDT
Using this DEF is not be all and end all to this.John Deere has a integrated control system here
Posted from: Idiot, 4/20/13 at 9:28 AM CDT
Brad, your comment bothers me as you take a well written story and trivialize it with your delusional comments!
If you knew anything about the diesel industry, you would know that NOBODY prefers to use DEF fluid. Deere went into IT4 without any use of the 2nd fluid, DEF and now to get to full and final tier 4, they will be using a minimal amount in some of there 1-4%....not 5 -15% as the competitors have ended up needing to get to IT4....let alone final Tier 4. So before you spout off on how Deere is just catching up....grab a brain, get some facts and speak the truth!!!
Posted from: Brad, 4/19/13 at 11:49 AM CDT
Excellent article on John Deere's engine evolution. It's good to see that they're now catching up to their competitors who have been successfully using the DEF fluid for a couple years now.

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