Heavy-Duty Heater Hose for HVAC Coolant Circuits

World American WA911-24-0002 is a blue heater hose supplied in a 25-foot coil for cut-to-length service on heavy-duty trucks, buses, and vocational equipment. With a 3/8 inch (9.5 mm) inner diameter, it routes engine coolant to cab heaters and auxiliary heat exchangers with a clean, secure fit. The blue jacket aids line identification in mixed-fluid systems and supports faster troubleshooting during maintenance. A continuous 25 ft roll minimizes joints and potential leak paths while giving technicians the flexibility to build multiple service lengths from a single package. Suitable for cab heater core supply/return and auxiliary HVAC loops where consistent hose stock is required.

Built for Dependability in the Aftermarket

As the heavy-duty and export division of Midwest Truck & Auto Parts, World American manufactures and sources replacement components under rigorous quality controls, including inspection and testing to verify fit and function before shipment. This heater hose is designed to install with standard 3/8 inch heater fittings and clamps and to flex for tidy routing through crowded engine bays and under-dash spaces. It is a practical stocking item for fleet PM programs, helping simplify parts consolidation across platforms. Interchange reference: Newstar KW-HE2932. Supported by World American’s heavy-duty aftermarket focus, it aligns with the demands of on- and off-highway applications where durability and serviceability matter.