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| Price | Negotiated |
| MOQ | Negotiable |
| Delivery Time | 5 - 8 work days |
| Brand | Komastu |
| Place of Origin | Japan |
| Model Number | 4D95 |
| Packaging Details | Neutral Package or Fumigation Free |
| Payment Terms | D/P, T/T |
| Supply Ability | 10 pieces |
| Condition | Used | Engine model | 4D95 |
| Place of Origin | Japan | Packaging Details | Neutral Package or Fumigation Free |
| Color | Same as pictures | Excavator model | PC130 - 7 |
| Material | Steel | Model Number | 4D95 |
| Supply Ability | 10 pieces | Brand Name | Komastu |
| Payment Terms | D/P, T/T | Type | Diesel Engine |
| Price | Negotiated | Delivery Time | 5 - 8 work days |
| Quality | High quality | Part number | 6205 - 21 - 1513 |
4D95 Diesel Used Engine Blocks For Excavator PC130 - 7 6205 - 21 - 1513
Specification
| Car name: Engine cylinder block |
| Model Number: 4D95 |
| Work form: Turbo |
| Number of Cylinder: 4 |
| Application: Excavator |
| valve: 8 valve |
| Cooling: Water cooling |
| Injection: Direct |
Description
With respect to the engine block, it is essential to adapt its design, the applied casting process, the selected alloy composition and heat treatment as well as the method used to ensure an appropriate cylinder bore surface quality.
Requirements for aluminium engine blocks
The
application
of
aluminium
for
engine
blocks
poses
a
certain
challenge,
in
particular
with
respect
to
diesel
engines.
The
required
rigidity
and
strength,
the
realisation
of
a
reliable
bolting
concept
for
the
cylinder
head
and
the
main
bearings
as
well
as
the
resulting
increase
of
the
crankshaft
clearances
and
the
inferior
acoustics
require
specific
solutions.
On
the
other
hand,
an
aluminium
engine
block
benefits
not
only
from
the
lower
density
compared
to
grey
cast
iron,
but
also
from
the
high
specific
modulus
of
elasticity
and
the
very
good
heat
conductivity.
1.
Thermal
conductivity
Modern
aluminium
engine
blocks
"see"
temperatures
of
150°C
in
crank-shaft
bearings
and
up
to
200°C
in
the
inter-bore
regions.
The
high
thermal
conductivity
of
cast
aluminium
alloys
ensures
efficient
heat
dissipation
into
the
coolant.
2.
Strength
at
elevated
temperatures
An
adequate
static
strength
level
up
to
temperatures
of
150°C
(oil
temperature)
is
required
mainly
in
the
joint
face
with
the
cylinder
head
due
to
the
load
of
the
head
bolts
and
in
the
bearing
saddles
to
withstand
the
forces
coming
from
the
crankshaft
rotation
and
the
thermal
expansion
of
the
engine
block.
3.
Strength
/
hardness
at
room
temperature
A
minimum
room
temperature
strength
/
hardness
of
the
aluminium
alloy
is
necessary
to
ensure
good
machinability
(depending
on
the
machining
parameters)
and
for
assembly.
4.
Fatigue
strength
During
operation
of
the
engine,
the
engine
block
is
subjected
to
cyclic
tensile
stress
in
a
wide
temperature
region
ranging
from
sub
zero
temperatures
(when
the
engine
is
started
in
the
winter)
to
elevated
temperatures
corresponding
to
the
oil
temperature
of
about
150°C.
A
most
important
material
characteristic
for
engine
block
design
is
therefore
the
fatigue
strength.
