1966 GMC PB25 Series 4.1L 6 Cyl. 1966 GMC PB25 Series 4.8L 6 Cyl. Notes: Air Cleaner Mounting Gasket -- 2-5/8in I.D. Ensure Proper FitTo confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in the Compatibility Table.
