All States Ag Parts Remanufactured Carburetor International 3514 504 2504 Due to core availability, at times we may need to rebuild Your core. You will be contacted within 1 business day if this is required Fits International Tractor(s) 504, 2504, 3514 Replaces Zenith Mfg nos 12685, 12758 All new, rebuilt and used tractor parts have a 1-year warranty Price includes refundable core charge of $50