Cummins ISB 3957914 Valve Rotator PAI 192101 (Pack6)CROSS REFERENCE: 3925666 3957914 8226 R0069799 APPLICATION: Cummins ISB Multiple Use Application. BRAND: PAI 192101 Cummins ISB 3957914 Valve Rotator PAI 192101. Replacement truck parts and aftermarket truck parts. Helps distribute wear and stabilize valve operation. 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