75Y5782 - Lenovo Heatsink with Fan for ThinkPad T520 75Y5782 - Lenovo Heatsink with Fan for ThinkPad T520 $74.61
75Y5784 - Lenovo Heatsink/Fan for ThinkPad T520 75Y5784 - Lenovo Heatsink/Fan for ThinkPad T520 $88.85
04W1581 - Lenovo Integrated Heatsink and Fan for ThinkPad T520 04W1581 - Lenovo Integrated Heatsink and Fan for ThinkPad T520 $136.66 $115.81
04W1833 - Lenovo Fan Heatsink Assembly for ThinkPad T520 04W1833 - Lenovo Fan Heatsink Assembly for ThinkPad T520 $87.24 $73.93
04W1578 - Lenovo CPU Fan with Heatsink Assembly for ThinkPad T520i / T520 04W1578 - Lenovo CPU Fan with Heatsink Assembly for ThinkPad T520i / T520 $83.51 $70.77
04W1580 - IBM Heatsink Fan for ThinkPad T520 04W1580 - IBM Heatsink Fan for ThinkPad T520 $61.62 $52.22