A bladder assembly including a body, a bladder received in the body, the bladder defining an internal volume and including an annular sealing bead, the sealing bead defining an opening into the internal volume, and a sealing member including a shaft having a first end and a second end, and an engagement portion connected proximate the second end, the sealing member being partially received within the internal volume and being moveable between at least a first position, wherein the engagement portion is spaced from the sealing bead, and a second position, wherein the sealing bead is compressed between the engagement portion and the body.