Replacement ignition key Compare your key with that shown Note this key is cut on both sides. Cross-sections show the hole key will fit into Keys are sent as blanks and can be cut to fit your car at any local key shop for a nominal charge. Check to make sure your blank key fits into ignition before cutting. Click on line drawing for photo of key. Uncut key shaft measures 6.60mm x 24.50mm For: BMW 1968-76 1600, 1800 and 2000 series Original codes ran from Cross referenced as: Ilco #: BMW1 Dominion #: HF-28 Curtis #: BMW1 Taylor #: B80NR Silca #: BW6