Mack 227QS34B Air Spring PAI 4905CROSS REFERENCE: 227QS34 227QS34B 227QS34A 25166846 APPLICATION: Mack Multiple Use Application. DETAILS: Cab Suspension Air Spring Stud on Both Ends Retained with 97AX286 Retaining Ring BRAND: PAI 4905 Mack 227QS34B Air Spring PAI 4905. Heavy duty parts and heavy duty. Maintains proper cab alignment and supports consistent suspension control. All components are proudly manufactured in the U. S. A. by PAI Industries Inc., an ISO9001 certified company