Cummins QSB 3979506 Camshaft PAI 191893ECROSS REFERENCE: 3979506 4896421 3954099 APPLICATION: Cummins QSB BRAND: PAI 191893E Cummins 3979506 Camshaft PAI 191893E supported by USA truck parts and diesel engine parts. Ensures stable valve control and dependable durability. 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 premium
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