Cummins ISX 3682959 Center Exhaust Manifold PAI 181048CROSS REFERENCE: 3682959 APPLICATION: Cummins ISX BRAND: PAI 181048 Cummins 3682959 center exhaust manifold PAI 181048 ensures stable exhaust function. Engine rebuild kits and engine replacement maintain heavy duty truck efficiency. 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