This heavy-duty hose set is designed specifically for Isuzu NRR NPR NPR-HD NQR models with 4HK1 5.2L engines from 2007-2010. The kit includes three premium rubber hoses for inlet, outlet, and bypass water circulation, ensuring reliable engine coolant flow. Constructed from durable rubber material, these hoses are built to withstand high pressures and maintain optimal engine temperature regulation. The robust construction and precise dimensions make these replacement hoses ideal for maintaining your engine's cooling performance. These hoses are essential for proper engine coolant circulation and are manufactured to meet the demanding requirements of commercial vehicles. Perfect for fleet maintenance or individual truck repair needs.