This is a Dorman Coolant Reservoir (Part Number: 603-385) designed for front installation in Chevy Chevrolet Impala and Cadillac XTS models. It is a direct replacement with a capacity of 1.2 liters and a maximum pressure of 20 psi. The reservoir has OE numbers 13220124, 13502353, 20902124, 22917996, 22924025, 22950436, and 25941.
