Cummins ISB/QSB 5339507 Flywheel Housing PAI 060011CROSS REFERENCE: 5339507 3926207 3906690 3910760 3902390 APPLICATION: Cummins ISB QSB BRAND: PAI 060011 Cummins 5339507 Flywheel Housing PAI 060011 intended for aftermarket truck parts and heavy duty truck parts. Ensures reliable torque transfer and lasting structural function. 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