Door Lock Cylinder With Keys 240Z 260Z 280Z 70-76Door locks with keys for Datsun 240Z*, 260Z, and 280Z, 1970 76. Choose from a pair of locks with matching keys, or R & L separately with different keys. *Series 1 (70 71 240Z) cars have a smaller locating tab on the cylinder then these replacements. This will require modifying the tab on the cylinder or the door opening slightly in order to fit. The 280Z door locks of 1977 78 are different and these door lock cylinders will not work on 77 78.