Cat C6.6 ACERT™. The Cat® C6.6 is
a 6.6 liter (403 in3) displacement, sixcylinder,
in-line configured engine that
utilizes the Caterpillar® Common Rail
fuel system for fuel delivery. It uses
ACERT™ Technology, a series of
Caterpillar engineered innovations that
provide advanced electronic control,
precision fuel delivery and refined air
management, resulting in outstanding
performance and lower emissions.
The C6.6 with ACERT Technology offers
a compact design with big, heavy-duty
engine features for outstanding durability,
reliability and performance. The C6.6
incorporates a new cross flow cylinder
head design, 4 valve head and an
ADEM™ A4 electronic controller.
The C6.6 also features proven cylinder
block, pistons and crankshaft and
incorporates the common rail fuel
system. ACERT™ Technology enables
the C6.6 engine to meet the U.S. EPA
Tier 3, European Union Stage IIIA and
Japan Ministry of Land, Infrastructure
& Transport Step 3 emissions standards,
which dramatically reduce nitrogen
oxide (NOx) and other emissions.
ACERT™ Technology used on the C6.6
consists of three basic building block
systems: electronic control, fuel delivery,
and air management. These have been
refined to control the combustion
process to a higher degree than ever
before possible.
Electronic control ADEM™ A4.
The Advanced Diesel Engine
Management – Electronic Control
Module continuously monitors important
engine conditions and functions. It uses
sensors throughout the engine to regulate
fuel delivery and all other engine systems
that require input to manage load and
performance. ADEM™ A4 is the brain
behind engine responsiveness, selfdiagnosis,
controlling emissions, and
fuel economy.
a 6.6 liter (403 in3) displacement, sixcylinder,
in-line configured engine that
utilizes the Caterpillar® Common Rail
fuel system for fuel delivery. It uses
ACERT™ Technology, a series of
Caterpillar engineered innovations that
provide advanced electronic control,
precision fuel delivery and refined air
management, resulting in outstanding
performance and lower emissions.
The C6.6 with ACERT Technology offers
a compact design with big, heavy-duty
engine features for outstanding durability,
reliability and performance. The C6.6
incorporates a new cross flow cylinder
head design, 4 valve head and an
ADEM™ A4 electronic controller.
The C6.6 also features proven cylinder
block, pistons and crankshaft and
incorporates the common rail fuel
system. ACERT™ Technology enables
the C6.6 engine to meet the U.S. EPA
Tier 3, European Union Stage IIIA and
Japan Ministry of Land, Infrastructure
& Transport Step 3 emissions standards,
which dramatically reduce nitrogen
oxide (NOx) and other emissions.
ACERT™ Technology used on the C6.6
consists of three basic building block
systems: electronic control, fuel delivery,
and air management. These have been
refined to control the combustion
process to a higher degree than ever
before possible.
Electronic control ADEM™ A4.
The Advanced Diesel Engine
Management – Electronic Control
Module continuously monitors important
engine conditions and functions. It uses
sensors throughout the engine to regulate
fuel delivery and all other engine systems
that require input to manage load and
performance. ADEM™ A4 is the brain
behind engine responsiveness, selfdiagnosis,
controlling emissions, and
fuel economy.