Perfect replacement - this engine coolant reservoir matches the fit and function of the original part. Designed specifically for International 5900, 9900i, and ProStar models, ensuring a perfect fit and compatibility that enhances performance and reduces... It is engineered and manufactured to match the fit and function of the original part. BESTfit Plastic Coolant Reservoir Replaces 2591550C91, 3627809F91 International ProStar Coolant Tank High Soar Engine Coolant Reservoir Tank Radiator Replacement Fits Heavy Duty Radiator Tank Durable construction - manufactured from quality materials to withstand underhood heat and vibration. Interchange Part Number : 2591620C91. Other Part Number : 6035105, 2591620C91. Radiator Coolant Reservoir For International Heavy Duty 5900i 9200 9900i ProStar 603-5105. For 2007-2017 International Prostar Direct Aftermarket Replacement for OE #2591620C91., Fit for International ProStar; 9900i; 5900; 9200 (03-18). Vehicle model years this part fits，be sure to check your vehicle trim using the Amazon garage.
