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PDI 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
Introducing the PDI Big Boss Out of Frame Overhaul Kit for CAT 3406E and C15 engines
making it ideal for heavy-duty applications where reliability is paramount
Designed with a robust construction
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PDI Big Boss Stage 1 Turbo for CAT 3406E | C15 4n0619 PDI Big Boss performance radiatorsPDI Big Boss Stage 1 Turbo for CAT 3406E and C15 Key Features: 78mm Billet compressor wheel 360 degree thrust bearing 1. 32 AR Exhaust Housing Improved throttle response Cooler exhaust temperatures The PDI Big Boss Turbo is made as an upgrade for most CAT engines with serial number prefixes 5EK, 6TS, 1LW, 1MM, 6NZ, 7CZ, and MBN. Quicker spool up time gives you better throttle response and can help with fuel economy. Features our HSM type exhaust