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6
Engine
Proven Power
Versatile tractors have been powered
by Cummins engines for nearly 40
years. Cummins engines employ the
latest advancements in diesel engine
design and technology to provide
long-term reliability. ese engines
are turbocharged and aercooled for
clean-burning fuel eciency. e high-
pressure injection system with electronic
engine control quickly responds to load
conditions or throttle adjustments,
with a 35% torque rise at 1400 RPM
and a 7% power bulge at 1800 RPM to
meet the rigorous demands of modern
agricultural operations.
Biodiesel approved
e Cummins QSM and QSX
engines are Tier 3 compliant and
meet the stringent Tier 3 NOx emis-
sions requirements by optimizing the
in-cylinder combustion system and
without the need for any additional
emissions subsystems. ese engines
have proven track records of excellent
fuel economy and are approved for B20
biodiesel in a continuing eort to sup-
port new fuel initiatives.
Bigger radiator, better cooling
e cooling system on Buhler four-
wheel drive tractors uses a large grille
and radiator to provide better air ow.
e larger surface area reduces the
air velocity required for engine cool-
ing, which results in more ecient fan
horsepower consumption. Some four-
wheel drive tractors have smaller hoods,
compromising cooling surface areas,
meaning more air needs to be pumped
through the radiator, drawing valuable
engine horsepower to run the fan.
Cummins QSM11
e Cummins QSM11 powers the
305, 340, 375 and 400 models. e 11-
liter in-line six-cylinder turbocharged
engine delivers superior performance
using advanced combustion technol-
ogy. e turbocharger is designed for
optimum boost to improve throttle
response across the operating range.
Electronically controlled unit injectors
with cam-driven rate shaping optimize
both emissions and eciency. e
ENGINES
::
THE POWER TO PERFORM