Hyundai HL955 Manual page 44

COOLING SYSTEM COOLING SYSTEM
1 Coolant supply to variable geometry turbocharger from the cylinder block
2 Variable geometry turbocharger coolant return to the EGR cooler outlet tube
3 Coolant supply to the EGR cooler from the rear of the cylinder block
4 EGR cooler coolant return to the coolant inlet connection
5 De-aeration port (to coolant top tank)
1 Coolant supply to aftertreatment DEF dosing valve and DEF tank
2 Coolant supply to cab heater
3 De-aeration port (to coolant top tank)
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760F2EG18
760F2EG19