***NEW*** pressurized radiator Cap "Like the original" for 100, 130, 140 SN 13968 & up, 200, 230, 240, 340, 404, 424, 444, 454, 464, 484, 544, 574, 584, 606, 656, 664, 666, 674, 684, 686, 706, 756, 784, 806, 826, 856, 884, 1026, 1206, 1256, 1456, Hydro 70, Hydro 84, Hydro 86; (Measure Neck before ordering); Replaces: 532029R91, 402281R1; SUB: IHS723 ---This radiator cap includes the gasket and is an exact copy of the original. This cap is rated for 7 PSI and is designed for a radiator neck with ID 1.5". Please measure your radiator neck before ordering if you have a Farmall 100 - 340 tractor. Including the finger tabs, the outside diameter of this cap is 4.000" OD. The tang to tang distance is 1.985" with a tang width of .575". The inside center diameter measures 1.485".