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A great upgrade for your CAT engine
OEM Cross Reference 1337052
PDI engineered this pan to eliminate common issues found in OEM designs—specifically thin castings
delivering consistent performance day in and day out
Premium Black Powder CoatCorrosion-resistant finish protects against road salts
PDI Big Boss Intake Manifold for Cummins ISX 03-07 4327147RX A great upgrade for yourAvailable for: 2003 2007 Cummins ISX15 Engine Warranty: 1 Year Limited Mile Warranty Factory intakes are designed in such a way that restricts the clean air flow to the engine and allow for more exhaust air (EGR) to reach the intake. 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. We do this by eliminating the necked down design that the