The ALM Manufacturing J17LM/J19LM Spark Plug fits most lawnmowers and cultivators. Supersedes Plug Numbers J8, J8J, CJ8, J8C. Compares to AC Delco LM46, LM49, Autolite 258, 404, 456, 458, XST458, Bosc more→h stk 7515, 7538, 7801, W12E, W45T3, W9ECO, WR11EO, Brisk J19, Champion 861, 868, 947, J8, J8C, J8J, J17LM, J19LM, QJ19LM, RJ19LM, Denso W9LM-US, W14LM-U, W9-U, W9LMUS, stk 6004, stk 6057, stk 6014, Eyquem 202CT, General Motors 5612975, 1559494, 5613283, Mega-Fire SE-19J, Motorcraft A7LM, A7CLM, A11LM, stk 98, stk 117, MTD 759-3338, Napa X507, Newstar GL3C, NGK 741, 1147, 3110, 3410, 3841, 4146, 4861, 4864, 5798, 6150, 7931, B2LM, B2-LM, B2LMY, BR2LM, B4LM, B4LM BL1, B4LMY BL1, B2, CS1, Prestolite …