This heavy-duty water bypass hose is designed specifically for Isuzu NRR NPR NPR-HD NQR trucks with 4HK1 5.2L engines from 2007-2010. Te robust construction ensures reliable performance in demanding conditions, while the precise dimensions guarantee a proper fit for your vehicle's cooling system. This replacement radiator hose comes as a single unit and is manufactured to meet the specifications of your Isuzu truck's cooling system requirements. The black rubber construction provides excellent heat resistance and durability needed for engine coolant applications. Installation is straightforward with its precise measurements and compatible design. Perfect for maintaining proper engine temperature and coolant flow in your Isuzu commercial truck.