Thermostat Bypass Hose Fits International Tractor Fits:International- 1026, 1206, 1256, 1456, 4568, 21456, 21206, 21256; IH Ind: 21026, 21206, 21256, 21456 Specifications 1.500" I.D. Replacement Numbers: International- 607259C1, 609000C1 Used with the following Diesel Engines: DT-361 DT-407 DVT-800 (used on IH 4586 and 4786 tractors) Only fits engines with Turbos. 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.