Keep your ISUZU NPR NQR 4HK1 5.2L engine running at optimal temperature with this pair of precision-engineered coolant thermostats. These thermostats are designed to open at 85°C and 82°C respectively, ensuring proper engine temperature regulation and preventing overheating. The robust construction features a durable spring mechanism and high-quality sealing components that maintain consistent performance under demanding conditions. Perfect for vehicles from 1998-2024, these thermostats help maintain efficient fuel consumption and reduce engine wear by regulating coolant flow with precision. The thermostats feature corrosion-resistant materials and are built to withstand the rigors of commercial vehicle operation. Installation is straightforward with the direct-fit design matching your ISUZU's specifications. Regular thermostat replacement is crucial for maintaining proper engine temperature and preventing costly repairs.

COMPATIBILITY: Designed specifically for ISUZU NPR NQR models with 4HK1 5.2L engine, manufactured from 1998-2024

TEMPERATURE RATING: Includes two thermostats rated at 85°C (185°F) and 82°C (179.6°F) for optimal engine temperature control

DUAL PACK: Set contains two high-quality coolant thermostats for complete system maintenance or replacement needs

PRECISION DESIGN: Engineered with durable metal construction and reliable spring mechanism for consistent temperature regulation

ESSENTIAL FUNCTION: Helps maintain proper engine operating temperature by controlling coolant flow through the cooling system

OEM

8973007901 / 8973007902 / 8973007903 / 8973007900

8972631910 / 8972334180 / 8972318900 / 8971674980

8970918060 / 8943703772 / 8943703771

8973007871 / 8973007872 / 8973007873 / 8973007870

8972631940 / 8972318870 / 8971674950 / 8971645690

8970286902 / 8943703781