PDI Big Boss Performance Radiator with Surge Tank | Peterbilt 379 cat-c15-esr1392176 The Big Boss Intake is

The Big Boss Intake is made to allow up to 15 percent more clean air into the engine while still mounting in the factory position with the factory hardware

OEM Cross Reference R5237650

Part # 720001

CARB EO D-773-13

OEM Reference Part Number 5326058H

PDI Big Boss Performance Radiator with Surge Tank | Peterbilt 379 cat-c15-esr1392176 The Big Boss Intake isPDI Big Boss performance radiators for Peterbilt 379 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.