Mack 454GC5142A Camshaft PAI 9007ECROSS REFERENCE: 454GC5205 454GC5142 454GC583A 454GC583 454GC5142A 4103 5010284883 20705754 APPLICATION: Mack E7 Multiple Use Application. BRAND: PAI 9007E Mack 454GC5142A Camshaft PAI 9007E. Heavy duty truck parts and diesel truck parts. Maintains consistent valve movement during 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