HP Pavilion DV7-4000 Bottom Base Enclosure w/ Subwoofer 615443-001 3ELX9BATP10
HP Compaq Bottom Cover Base Enclosure Alum Pavilion Dv7 Assy / 3ELX9TP103
There are two kinds of HP DV7-4000. One has subwoofer (HP part number is 615443 -001) ; One does not have subwoofer (HP part number is 605345-001)
Compatible Laptop Models: