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Available for: Volvo D13 and Mack MP8 2007-2021
Built from Compacted Graphite Iron (CGI) with Inconel intake and exhaust valves for superior heat resistance
OEM Reference Part Number 5440760
PDI Big Boss Performance Radiator | Peterbilt 389 & KW W900 engine components Save Big Money – GetPDI Big Boss performance radiators for Peterbilt 389 and KW W900 models feature a premium tube design to allow coolant more time to cool properly for more demanding applications. When combined with higher fin count and more efficient cores, PDI radiators increase cooling capacity 15 20% over OEM. Size and Fitment is direct replacement for simple installation. Constructed of quality aluminum cores with plastic tanks to ensure no tank corrosion and