The total available cooling capacity of the system is 11.1 gallons per minute (GPM). Please refer to the chart below for the
available coolant flow dependent on your vehicle configuration. In-transit coolant draw and vehicle component draw MUST
NOT EXCEED 11.1 GPM.
Exceeding the cooling system capacity will result in engine component failures.
mDrive
Cooler
Artic Fox
Heater
In Transit
Heater
OK/
NOK
Available Flow for Extra Components (GPM)
X X X Not OK N/A
X X
OK
None
X X OK Depends on how much the transit heater demands. The transit heat-
er may demand no more than 5 GPM.
X OK 5 GPM
X X
OK
Depends on how much the transit heater demands. The transit heat-
er may demand no more than 6.1 GPM.
X OK 6.1 GPM
X OK Depends on how much the transit heater demands. The transit heat-
er may demand no more than 11.1 GPM.
OK 11.1 GPM
Available Fittings for Specific Applications
Note: Contact your local Mack dealer to order these fittings.
W2123680
Mack Body Builder Instructions CHU, CXU, GU, TD, MRU, LR
USA139046859 Date 5.2017 Body Builder; Engine, MP7, MP8, and MP10 Page 39 (43)
All Rights Reserved
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