Detroit Diesel A4711420180 Gasket Front Exhaust Manifold PAI 631411CROSS REFERENCE: A4711420180 APPLICATION: Detroit Diesel DD13 BRAND: PAI 631411 Detroit Diesel A4711420180 Exhaust Manifold Gasket PAI 631411 stabilizes exhaust connection. Maintains gas flow and prevents leakage for commercial truck parts and heavy duty engine. 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