Caterpillar 7C3862 Camshaft PAI 391904CROSS REFERENCE: 0R3022 7C3862 229 2189 APPLICATION: Caterpillar 3304 3300 Multiple Use Application. BRAND: PAI 391904 Caterpillar 7C3862 Camshaft PAI 391904. Aftermarket truck parts and truck repair parts. Supports consistent valve movement and maintains camshaft stability. 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