Detroit Diesel A4711420280 Gasket Rear Exhaust Manifold PAI 631412CROSS REFERENCE: A4711420280 APPLICATION: Detroit Diesel DD13 BRAND: PAI 631412 Detroit Diesel A4711420280 Rear Exhaust Manifold Gasket PAI 631412 stabilizes rear manifold connection. Prevents exhaust leaks and ensures reliability for USA truck parts and commercial truck parts. 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