One NOS key blank for Peterbilt Semi Trucks. I'm not sure what model and year Peterbilt trucks this key blank fits, but the photograph shows both sides of the key including the key blade, and can be used to compare the new key blank with your working key to verify it is the correct blank. Both sides of the key bow or head are identical and say 'Peterbilt'. This key has a removable knock-out, which can be removed to make room for a key ring.