Installation Manual

MISHIMOTO | 18 BOULDEN CIRCLE, NEW CASTLE, DE 19720 | P 877.466.4744 | WWW.MISHIMOTO.COM
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03
THERMOSTATS
05. Factory thermostats are prone to overextension, which results
in thermal spikes within the radiator and potential damage.
remove the factory thermostat housing and inspect the bypass
thermostat for extension distance from the mounting surface
(Figure 6). This distance should be no greater than 45mm.
In the case if this distance is greater than 45mm, replace the
thermostat.
REFILLING COOLANT
06. When refi lling the coolant system, be sure to use a radiator
refi ller such as the airlift refi ll Tool recommended by Ford.
If this device is not used, air pockets in the system can exist
resulting in low fl uid levels.
07. Check the coolant level after a few cycles of bringing the
truck to operating temperature and back to ambient. Proper
coolant level is vital for this system; the fluid should be
between the two lines on the Degas Bottle when the engine
is cold. From our experience, obtaining the proper level of
coolant and air pocket elimination will take approximately
two to four warmup cycles.
BUSHING INSPECTION
08. Check the upper radiator mounting peg bushings for damage.
These bushings (Figure 7 and 8) should be pliable and free
of any cracking or tears. If these bushings are damaged,
replace them with OEM components.
CONTINUED ON FOLLOWING PAGE
Figure 6
Figure 7
Figure 8
'08
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'10 FORD 6.4L POWERSTROKE
ALUMINUM RADIATOR
PRE-INSTALL RADIATOR CHECKLIST