Different fans are installed in the Lenovo T490 model series, depending on the equipment. Please check whether this is the fan you require before purchasing.
The offered manufacturer number is an alternative (substitute) to the spare part number you are looking for.
Depending on the configuration of the laptop different cooler be installed by the manufacturer. Please compare exactly the mounting points and form of this cooler with your one!
You've found this article over a part number. We'll check if it's the correct sparepart for your machine. To do this, please insert the manufacturer and the name of the model in the order comment.