HP Pavilion DV7-4077CL Compatible Laptop Fan
This fan for your laptop can be used as a replacement for your original laptop fan, if the original is faulty or damaged. The fans may require soldering and it is strongly advised that you have the item fitted by a qualified computer technician. Please be aware that many fans have the same part number and you should make sure that you remove the old fan from your laptop and compare it with the picture contained within the listing.