One New Aftermarket Replacement O-RingTechnical Information: Piston Ring (135.64mm / 5.34in) Closed BoreFit:Fits Landini Model(s): 5830Fits Massey Ferguson Model(s): 1080, 1085, 1100, 1105, 1130, 1135, 1150, 1155, 1200, 1250, 133, 135, 135 Gas / 135 Petrol, 135 USA Made, 140, 145, 148, 150, 1505, 152, 155, 158, 165, 165 USA Made, 168, 175, 175 USA Made, 178, 178 USA Made, 180, 1805, 185, 188, 20C, 20E, 230, 235, 240, 245, 250, 253, 255, 260, 2620, 2640, 265, 2680, 270, 2720, 275, 285 (FR), 285 U.S. Built, 290, 290 U.S. Built, 298, 30, 30E, 31, 340, 35, 35 Gas/35 Gasoline, 35 U.S. Built, 3505, 3525, 3545, 355, 35X, 360, 362, 365, 375, 375E Brazilian, 383, 390, 390E Brazilian, 390T, 393, 396, 398, 399, 40B, 40E, 50, 50C, 50E, 50H, 550, 560, 565, 575, 590, 595, 60H, 65, 65 Made in USA, 670, 675, 690, 698, 698T, 699 Replaces parts: 185425M1, 523551M1, 523560M91, 1866894M1, 509594M92, 523556M91, 836620M91, 836619M91