Crate HEMI® Engine Kit Instruction Sheet www.mopar.com
Rev Level 5.0 – K6862625 7
Coolant Lines & Radiator Fans
Ensure that the correct fan is chosen for the application. This system has a 30 Amp maximum fused
output for a fan. Mount appropriately sized fans to appropriately sized radiator for the application used.
The fan is programmed to turn on at 107°C (225°F). Use radiator coolant hoses 45 mm (1.75 inches) and
fit to specific application. An additional fitting may be on the water pump, if not in use remove fitting
and install an appropriate plug.
When installing coolant lines ensure there are no sharp bends that may restrict coolant flow. Use tightly
secured clamps on hoses and inspect for leaks. Adequate engine cooling is necessary to prevent damage
to engine. No air bubbles should be trapped within coolant lines, bleed system correctly. Do not run
engine above 116° Celsius or 240° Fahrenheit. Normal temperature range is 93–110°C (200–230°F).
Rear Heater Lines
If bypassing heater core, recirculate coolant lines at
the back of the engine by connecting one side of
coolant line to the other using an appropriate length
of hose to ensure no sharp bends are present and
fasten with hose clamps. Use 5/8 inch inner
diameter (ID) hose. If using a heater core, coolant
line flow direction is as pictured.
Front End Accessory Drive (FEAD) Systems
Install selected FEAD kit and FEAD Add-On kits as per their included instruction sheet.
Proper tension must be applied to the serpentine belt. Tensioner must not be against either bump stop
and must be applying tension to belt. Use appropriate length belt included within kit or suggested in
instruction sheet.
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