Emissions Control system configured
with cooled exhaust gas recirculation
(EGR), a DOC and selective catalytic
Engines in the 125 hp and above
power range use an Integrated Emissions Control system consisting of
cooled EGR, a DOC/DPF and SCR.
Total diesel fuel and DEF consumption with John Deere Tier 4 final
engines is generally expected to be
lower than diesel-fuel-only consumption of John Deere Tier 4 interim
engines, the company said.
Over the past year, John Deere
reached two new milestones in the
transition to Tier 4 final:
• The company started production of
its larger displacement Tier 4 final
engines. The Power Tech PVS 6.8L,
PowerTech PSS 6.8L, PowerTech
PSS 9.0L and PowerTech PSS
13.5L engines meet emissions reg-
ulations that took effect Jan. 1 for
engines 174 hp and above.
• The Power Tech EWX 4.5L engine
was certified as compliant with
Tier 4 final and California Air
Resources Board (CARB) regulations. The 74 hp model became
the first John Deere Tier 4 final
engine below 75 hp to achieve
Models and power ratings for the
complete John Deere Tier 4 final
• Power Tech EWX 2.9L: 48 to 74 hp
• Power Tech EWX 4.5L: 74 hp
• Power Tech PWL 4.5L: 85 to 140 hp
• Power Tech PSS 4.5L: 125 to 173 hp
• Power Tech PVS 6.8L: 140 to 250 hp
• Power Tech PSS 6.8L: 225 to 300 hp
• Power Tech PSS 9.0L: 250 to 425 hp
• Power Tech PSS 13.5L: 414 to 600 hp
John Deere introduced two new 13. 5
L generator drive diesel engines for
emergency stationary gen-set applications in the 350 to 500 kWe range.
The Tier 3 PowerTech E 13.5L and
Tier 2 PowerTech 13.5L engines are
designed to offer reliable, cost-effective standby power for the 60 Hz market in the United States and Canada.
The Power Tech E 13.5L 6135HFG84
includes higher output PowerTech E
ratings of 538 and 617 hp at 1800
rpm, and meets key power nodes of
350 and 400 kWe standby power,
the company said. The new engine
is available with a New Source
Performance Standard (NSPS) emergency stationary label for the U.S.
market and is capable of achieving
Tier 3 emissions levels as required
by emergency stationary regulations,
The Power Tech 13.5L 6135HFG75
offers compact size, increased power
density and lower heat rejection
when compared to engines requiring a larger displacement, the company said. The new engine offers
a power rating of 755 hp at 1800
rpm and meets a key power node of
500 kWe standby power. Available
with a NSPS emergency stationary
label for the U.S. market, Deere said
the engine is certified to meet Tier
2 emissions levels as required by
emergency stationary regulations for
gen-set ratings above 750 hp.
Both engines incorporate a fixed-geometry turbocharger, electronic
unit injector fuel system, four-valve
cylinder head, air-to-air aftercooling
and full-authority electronic controls.
John Deere announced that it
would meet Tier 3 marine emissions
regulations with a complete lineup
of diesel engines from 99 to 750 hp.
The company introduced new Tier 3
PowerTech 9.0L and 13.5L propul-
sion and generator-drive engines to
join the previously announced 4.5L
and 6.8L Tier 3 models, offering cus-
tomers a full range for commercial
and recreational applications.
The PowerTech 6090AFM85,
PowerTech 6090SFM85, PowerTech
6135AFM85 and PowerTech
6135SFM85 propulsion and generator-drive Tier 3 engines are compliant with
International Maritime Organization
(IMO) Marpol Annex 6. Power rat-
• The 6090AFM85 engine is available in four propulsion ratings
from 285 to 425 hp; gen-set ratings include 222 kW at 1800 rpm
for 60 Hz and 195 k W at 1500 rpm
for 50 Hz.
• The 6090SFM85 model is available in five propulsion ratings
from 325 to 550 hp; gen-drive
ratings include 278 kW at 1800
rpm for 60 Hz and 222 kW at
1500 rpm for 50 Hz. The model
is designed for high-speed craft
such as sport fishing boats and
planing hull yachts.
• The 6135AFM85 engine is available in four propulsion ratings
from 365 to 575 hp; gen-set ratings include 334 kW at 1800 rpm
for 60 Hz and 278 k W at 1500 rpm
for 50 Hz.
• The 6135SFM85 diesel, the most
powerful engine produced by John
Deere, available in five propulsion
ratings from 425 to 750 hp. Gen-drive ratings include 416 kW at
1800 rpm for 60 Hz and 334 k W at
1500 rpm for 50 Hz. It is designed
for high-horsepower applications
such as patrol craft, launches,
workboats, fishing boats, trawler
yachts and sport fishing boats.
John Deere also introduced a full
line of radiator-cooled, dry-exhaust-manifold Power Tech auxiliary engines
designed for powering a variety of
deck auxiliaries including pumps,
winches, cranes, hydraulics and generators. The lineup meets EPA Tier 3
marine emissions regulations for U.S.
waterways, the company said.
John Deere’s Power Tech 6.8L engine.