Peterbilt/Paccar MX-13 2124729PE Exhaust Manifold PAI 706004OEMCROSS REFERENCE: 2124729PE 2124729 APPLICATION: Peterbilt Paccar MX 13 DETAILS: Genuine Part BRAND: PAI 706004OEM Peterbilt Paccar MX 13 2124729PE Genuine Exhaust Manifold PAI 706004OEM ensures stable exhaust flow. Replacement engine parts designed for truck engine parts 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