Fuel Sending Unit Fits International Tractor Fits:International- 504, 606, 664 gas and diesel, (544 Farmall rowcrop diesel, & IH utility gas and diesel); 656 IH utility, gas and diesel; Specifications 32 to 244 Ohms 15-1/2" Deep Replacement Numbers: International- 377103R91, 377104R91, 84212457 All JJAgParts items have been hand selected by our team and are continuously monitored for Quality. Should a craftsmanship or fitment concern be identified, JJAgParts will work with you to stand behind our products. JJAgParts is an American owned and operated family business! Here at JJAgParts, we strive for customer satisfaction. If you are not satisfied with your order, please contact us so we can make it right. Note: OEM Part Numbers are for reference only and should be verified before purchase.