Cummins ISX 4298628 Camshaft Valve PAI 191825CROSS REFERENCE: 4298628 3685963 APPLICATION: Cummins ISX Multiple Use Application. DETAILS: 20mm Size Lobe Width. BRAND: PAI 191825 Cummins ISX 4298628 Camshaft Valve PAI 191825. Replacement truck parts and aftermarket truck parts. Maintains valve control and ensures consistent combustion 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