287313 AD-2 Cartridge Kit PAI 55430CROSS REFERENCE: 287313 APPLICATION: Mack Multiple Use Application. BRAND: PAI 55430 287313 AD 2 Cartridge Kit PAI 55430. Heavy duty parts and heavy duty truck parts. Maintains dry air flow and helps extend pneumatic system component life. 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 is built brand new with