Maintenance Specifications
PACCAR Y53-1030A 12/09 – 57 –
Cooling System
Coolant Capacity (engine only) 12.4 liters (13.1 qt)
Standard Modulating Thermostat Range 82 to 93°C (180 to 200°F)
Minimum Recommended Pressure Cap 103 kPa (15 psi)
Maxiumum Top Tank Coolant Temperature 107°C (225°F)
Winterfronts Minimum Allowed Air Passage Area 774 cm² (120 in.²)
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