Cummins 4004556 Camshaft PAI 191919CROSS REFERENCE: 3087856 4004556 APPLICATION: Cummins M11 Multiple Use Application. BRAND: PAI 191919 Cummins 4004556 Camshaft PAI 191919. Truck parts and diesel parts. Regulates valve timing and supports controlled engine stability. 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 is built brand new with