6Engine
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 s ystem 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 co oling surface areas,
meaning more air nee ds to be pumped
through the radiator, drawing valuable
engine horsepower to run the fan.
cummins Qsm11
e Cummins QSM11 p owers 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 ecienc y. e
engines :: THe PoWer To PerForm