New compact engines designed for skid steers, loaders and excavators
BY IAN CAMERON
With a view to emphasizing the continuing focus on size, Perkins has introduced its
new “ultracompact” 2. 2 L engine.
The four-cylinder engine is available
as either the 48. 8 bhp 404F-E22T
(turbocharged) model or the 67.0
bhp 404F-E22TA (turbocharged after-cooled) engine. Torque is 121.7
and 153.4 lb.ft. respectively. Both
models have a 2800 rpm rated
speed and meet U.S. Environmental
Protection Agency (EPA) Tier 4 final
Perkins said the engines, part
of the company’s 400 Series, are
designed for applications such as skid
steers, excavators up to 6 or 8 tons,
small wheel loaders, the agricultural
sector and North American electric
The company is promoting the engine’s power-to-size credentials,
claiming that the compact engines
produce similar output from 2. 2 L compared to 2. 4, 2. 5 or 2. 9 L engines.
“We are finding that OEMs, our
customers, have limited resources,
so what we are telling them is that we
can offer a ready, validated, compact
engine that allows the OEM to reduce
their machine sizes, as this engine is
aimed at compact construction equip-
ment,” said David Kidder, Perkins
The engine has an electronic Denso
29,007.5 psi common rail fuel system
and a diesel oxidation catalyst (DOC)-
only aftertreatment system.
Dimensions are a key feature of the
new inline four-cylinder, direct-injection,
liquid-cooled engines, which have a
bore and stroke of 84 x 100 mm.
Engine length, including the fan, is
28. 4 in., width is 21. 4 in., height is 28. 3
in. and the dry weight is 507 lb. Service
intervals are every 500 hours, and
there is a standard two-year warranty.
“What we are saying to OEMs is that
the engine is a really compact package,
which means it is very easy for them to
install it in their machines,” Kidder said.
“It is a very neat engine, and also for
end customers there is little for them to
do. As it is DOC-only, there’s no special servicing for the aftertreatment.
Also, we have done a lot of validation,
and we have taken this engine into
very extreme weather and altitude
conditions for testing.
“Because it is so compact, we have
enabled all of the servicing to be carried out on one side, which means
OEMs can design their machine and
not compromise on the ease-of-use
for their customers.
“We are also finding that a lot of our
customers say they prefer DOC to a
diesel particulate filter (DPF) because
of the servicing aspect, especially in
the United States. For smaller equipment up to, say, 75 hp, it does seem
that DOC-only is a better solution,
especially among rental companies
that just want to rent out their simple
equipment with few risks or servicing needs. However, at higher engine
powers, machines are more specialized and tuned to one application, and
they are more likely to choose what a
DPF offers on our larger engine range.”
The new Perkins 404F-E22TA engine, part of the company’s 400 Series, is designed for
applications such as skid steers, excavators up to 6 or 8 tons and small wheel loaders.