Cummins QSX 4965487 Oil Cooler Core PAI 141431OEMCROSS REFERENCE: 4965487 APPLICATION: Cummins QSX Multiple Use Application. DETAILS: Genuine Part BRAND: PAI 141431OEM Cummins 4965487 Oil Cooler Core PAI 141431OEM. USA truck parts and replacement truck parts. Maintains oil cooling and supports stable engine lubrication. All components are proudly manufactured in the U. S. A. by PAI Industries Inc., an ISO9001 certified company with over 50 years of experience in the heavy duty truck parts industry.