Compatible with International Paystar 5900i 2008-2009, Paystar 5900 2010
CORE HEIGHT: 40 1/8", CORE WIDTH: 26", DEPTH: 2 1/4", ROWS: 2 with 1" Tubes, INLET: 2 1/2" - Upper Left - 7 1/2" In, OUTLET: 2 1/2" - Lower Right - 7 1/2" In, OIL COOLER: No
OEM Part Numbers: 2591559C91, 2591553C91, 2601433C91, 2591552C91, 2591554C91, 2591555C91, 2596591C91, 2596595C91, 3E0113500000, CTVTM81433, 8143, NAV19, 3S11350, 3S012737, IN8143, 20013533, 1S180196, 1S180197, 1S180130, 1S180131, 1S180129, 20013533, CTVTU81433, 437307S, 437307, 6400-20PT, 437307P
High Quality OE Style Radiator with Plastic Tanks / Aluminum Core
Comes with Logo, 2x22" Windshield Wipers, License Plate Frame, 2x Trailer Tail Lights, KOZAK Reflective Vest
Please note that in order to process the shipping promptly, the Buyer must provide a VALID phone number where they can be reached and contacted by the delivery carrier. Failure to do so may result in delayed shipment. Seller is not liable for any expense associated with failure to provide contact information on Buyers behalf. Seller reserves the right to hold the shipment until the contact with Buyer has been established to clear all shipping details. Buyer is not liable for lost or damaged packages after 14 days of delivery confirmation. Please make sure to provide your full and detailed shipping address information!
Keep your International Paystar 5900 running cool under demanding conditions with this direct-fit replacement radiator, part number 2601433C91. Designed specifically for the International Paystar 5900 (2010) and Paystar 5900i (2008–2009), this radiator delivers reliable engine temperature management whether you're hauling heavy loads on the highway or grinding through tough job sites. If you're a fleet manager, owner-operator, or body shop professional looking for a dependable cooling system solution, this unit is built to meet or exceed the performance of the original equipment it replaces.
This replacement radiator features a core height of 40-1/8 inches, a core width of 26 inches, and a depth of 2-1/4 inches with 2 rows of 1-inch tubes for efficient heat dissipation. The upper-left inlet and lower-right outlet are both 2-1/2 inches, positioned 7-1/2 inches in for a seamless fit with your existing hose routing. There is no oil cooler included, keeping the design clean and straightforward for a quicker, more manageable installation. The unit is compatible with multiple OEM part numbers including 2591559C91, 2591553C91, 2591552C91, 2596591C91, 2596595C91, and several others, making cross-referencing your existing parts simple and hassle-free.
Constructed with quality materials engineered to withstand the rigors of heavy-duty trucking, this radiator offers the durability your Paystar 5900 deserves. The precision fitment means less time in the shop and more time on the road — a critical factor for fleets that can't afford unnecessary downtime. Installation is straightforward for experienced technicians, with all mounting points and connections matching original factory specifications.
At Kozak Parts, we stock this radiator in our Seattle, Washington warehouse and ship quickly so you can get back to work without delay. Whether you're replacing a failed unit or completing a full cooling system overhaul, this International Paystar 5900 radiator is a smart, cost-effective choice you can count on.