Caterpillar C15 2315234 Exhaust Manifold PAI 381277CROSS REFERENCE: 2315234 231 5234 APPLICATION: Caterpillar C15 Multiple Use Application. DETAILS: Manifold Exhaust Center BRAND: PAI 381277 Caterpillar C15 2315234 Exhaust Manifold PAI 381277. Heavy duty parts and heavy duty truck parts. Maintains stable exhaust transfer. 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.