^^ they dont burn out, if that's what your asking. my sister has 221k on her corolla with the 1zz and havent have any ignition issues and she didnt change her spark plugs until 192k.
90080-19015 and 90919-02239 are the part numbers listed on my coils. I have also seen some with the same numbers but are longer. Make sure that you get the short ones.