Cummins ISX15 5484100 Idler Shaft PAI 180154CROSS REFERENCE: 5484100 3686952 3685928 3686895 APPLICATION: Cummins ISX15 Multiple Use Application. BRAND: PAI 180154 Cummins ISX15 5484100 Idler Shaft PAI 180154. Heavy truck parts and OEM replacement parts. Ensures proper shaft support and stabilizes timing system performance. 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