Spark plug (autolite) for the Case-IH 10-20, 100, 1026, 105 COMBINE, 1066, 1086, 1206, 1256, 130, 140, 1456, 1466, 1468, 1486, 154, 1566, 1568, 1586, 184, 185, 200, 21026, 21206, 21256, 21456, 22-36, 230, 2300, 2300A, 240, 2400, 2404, 2424, 2444, 2500, 2500A, 2500B, 2504, 2544, 2606, 2656, 2706, 2756, 2806, 2826, 2856, 300, 3088, 3288, 330, 3388, 340, 3400A, 3414, 3444, 3488, 350, 3500A, 3514, 354, 3588, 3616, 364, 3688, 3788, 384, 385, 395, 400, 404, 4100, 4156, 4166, 4186, 424, 4366, 4386, 444, 450, 454, 4568, 4586, 460, 464, 4786, 484, 485, 495, 500 CRAWLER, 504, 5088, 5288, 544, 5488, 560, 574, 584, 585, 595, 600, 606, 6388, 650, 656, 6588, 660, 664, 666, 674, 6788, 684, 685, 686, 695, 7000 FORKLIFT, 706, 7288, 7488, 756, 766, 784, 786, 806, 826, 856, 884, 885, 886, 966, 986, A, A1, AV, AV1, B250, B275, B414, BN, C, CUB, CUB 154 LO-BOY, CUB 184 LO-BOY, CUB 185 LO-BOY, CUB LO-BOY, F-12, F-14, F-20, F-30, FAIRWAY 12, FAIRWAY 14, H, H84, HV, HYDRO 100, HYDRO 1026, HYDRO 1066, HYDRO 186, HYDRO 70, HYDRO 826, HYDRO 84, HYDRO 86, I-30, I-4, I-6, I-9, ID-6, ID-9, IU-6, M, M-TA, MD, O-12, O-14, O-4, O-6, ODS-6, OS-4, OS-6, SUPER A, SUPER A CULTI-VISION, SUPER A1, SUPER AV, SUPER AV1, SUPER C, SUPER H, SUPER M, SUPER M-TA, SUPER MD, SUPER O-4, SUPER O-6, SUPER W-4, SUPER W-6, SUPER W-9, SUPER WD-6, SUPER WD-9, SUPER WDR-9, SUPER WR-9, T-20, T-340 CRAWLER, T-4, T-5, T-6, T-9, TD-14, TD-14A CRAWLER, TD-18, TD-18A CRAWLER, TD-5 DOZER, TD-6, TD-9, W-12, W-14, W-30, W-4, W-400, W-450, W-6, W-6TA, W-9, WD-6, WDR-9, WK-40, WR-9, WR-9S model tractor(s).