Description:

COMPATIBILITY:Compatible with 2008-2017 Peterbilt 337, 2008-2017 Kenworth T660.. OE STANDARD: Meets the Original Equipment (OE) standards, ensuring replacement fit just like the original.Interchange part number: 603-5403.. HOW A COOLANT RESERVOIR WORKS: The coolant reservoir is attached to the radiator and the engine with hoses and is a vital component of the cooling system. Its function is to store excess coolant fluid until required. When the coolant reservoir has issues, the engine might suffer from loss of lubrication, overheating and metal corrosion.. EASY INSTALLATION: Direct Replacement, easy installation. Professional installation is highly recommended..