MacBook A1342 Bottom Case Housing Cover $5.00 Late 2009 – Mid 2010 Polycarbonate Unibody MacBook A1342 Bottom Case Housing Cover quantity Add to cart Add to Quote Continue Shopping Category: MacBook Parts (MacBooks) Tags: macbook, polycarbonate Description Apple 922-9183, 604-1033, 604-2185. Bottom cover for the Late 2009 – Mid 2010 Polycarbonate Unibody Macbook The rubber is coming up on one side, so it needs to be glued back down.