Caterpillar 3406E/C15 2316127 Exhaust Manifold PAI 381216CROSS REFERENCE: 2316127 231 6127 APPLICATION: Caterpillar 3406E C15 BRAND: PAI 381216 Caterpillar 2316127 Exhaust Manifold PAI 381216 ensures stable exhaust performance. Replacement engine parts created for truck engine parts 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