Cummins ISB 3937555 Belt Tensioner PAI 180887CROSS REFERENCE: 3937555 3917440 3934819 3936205 APPLICATION: Cummins ISB BRAND: PAI 180887 Cummins 3937555 Belt Tensioner PAI 180887 for engine rebuild kits and engine replacement. It provides precise belt guidance that maintains consistent engine 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 industry. This part
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