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The PDI Big Boss Turbo is made as an upgrade for most CAT engines with serial number prefixes 5EK
Available for: Cummins X15 2017-2021 High Hp
Introducing the Big Boss Performance Dual Oil Cooler for Cummins X15 and ISX Engines
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
US$ 12.00
US$ 16.99
US$ 49.90
US$ 27.00