One New Aftermarket Replacement Glow Plug Switch Replaces Part Numbers: 393209R1, 373611R91, 367678R91, 393209R91, 20A1749 OEM Numbers Are Provided for Reference Only. Please Verify Fit Prior To Ordering. Please Note: Some Listings Use Stock Images for Reference and May Differ from the Actual Product. This Aftermarket Part Is Made to Meet or Exceed Manufacturer (OEM) Specifications. One New Aftermarket Replacement Glow Plug Switch Fits Case-Ih Industrial/ Construction Models: 21026, 21256, 21456, 2400A, 2404, 2424, 2444, 2500, 2504, 2544, 2606, 2656, 2706, 2756, 2806, 2826, 2856 Fits Case-Ih Swather/ Windrower Models: 275, 375 Fits Case-Ih Tractor Models: Fits Cub, Fits Cub Lo-Boy, Hydro 100, Hydro 70, Hydro 86, 1026, 1066, 1206, 1256, 140, 1456, 1466, 1468, 1566, 1568 200, 230, 240, 300, 330, 340, 350, 404, 4100, 4156, 4166, 4186, 424, 4366, 444, 454, 4568, 460, 464, 504, 544, 560, 574, 606, 656, 660, 664, 666, 674, 686, 706, 756, 766, 806, 826, 856, 966 This Switch Is Used On Many Models As A Starter, Horn Or Glow Plug Switchpush Button Start / Glow Plug / Horn