Cummins ISX 3684295 Front Exhaust Manifold PAI 181054CROSS REFERENCE: 3684295 5579056 APPLICATION: Cummins ISX BRAND: PAI 181054 Cummins 3684295 front exhaust manifold PAI 181054 supports exhaust control. Engine replacement and replacement engine parts provide stable truck 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 heavy duty truck parts industry. This part is built brand new with