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The 7443K Installation Kit is a complete set of gaskets and seals needed to install our Big Boss Exhaust Manifold on Cummins ISX and X15 Engines
horsepower and torque
our camshafts are the standard of performance and durability
OEM Cross Reference R5237650
(1) Upper Gasket Set
PDI Big Boss Performance Radiator with Surge Tank | Peterbilt 379 cat-c15-esr1392176 The 7443K Installation Kit 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.
US$ 65.00
US$ 19.00
US$ 85.00