Keep your engine running smoothly with this high-quality radiator coolant overflow tank designed specifically for ISUZU NPR, NQR, and NPR-HD models from 1998-2007. Compatible with 4HE1 and 4HK1 engines, this replacement tank helps maintain proper coolant levels and prevents overheating. Constructed from durable white plastic material, this overflow bottle features precise mounting points for easy installation and secure fitment. The tank's design includes integrated connections for coolant lines and a convenient fill neck. This essential component helps protect your engine by collecting and storing excess coolant during thermal expansion, ensuring optimal cooling system performance. Direct replacement part ensures proper fit and function for your ISUZU commercial truck.

COMPATIBILITY: Direct replacement for ISUZU NPR, NQR, and NPR-HD models from 1998-2007 with 4HE1 and 4HK1 engines

FUNCTION: Serves as an overflow reservoir for engine coolant, maintaining proper cooling system pressure and fluid levels

CONSTRUCTION: Manufactured from durable white plastic material designed to withstand high temperatures and engine bay conditions

DESIGN: Features integrated mounting points for secure installation and proper fitment to vehicle specifications

MAINTENANCE: Easy to monitor coolant levels through translucent container walls for routine fluid checks

OEM

8972230122 / 8972230121 / 8972230120 / 8972108440

8971312020 / 8981781771 / 8981781770 / 8971209130

8971209131 / 8971209132 / 8970355111