PDI Big Boss Performance Radiator | Peterbilt 379 CAT Have questions

Have questions

For Use with Big Boss Exhaust Manifold PN 3462 and 3461

A great upgrade for your CAT engine

Upon ordering we will provide you with a return shipping label for your cores to make it easy to return them back to us

PDI Big Boss Performance Radiator | Peterbilt 379 CAT Have questionsPDI Big Boss performance radiators for Peterbilt 389 models feature a dimpled 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.