Sears Brand Semi Active Air Suspension with 15" Wide Mount on Bottom Semi-Active Air Suspension provides improved vibration reduction. That combined with the vibration reduction system, you'll have a seat that improves comfort, performance and productivity. Features: Self-contained 12-Volt compressor Easy to use weight control 4" suspension travel 285 lb maximum weight capacity Air expansion tank on right-hand side Durable rubber molded suspension cover to keep components free of dirt and dust Bottom mounting pattern of 15" side-to-side and 11.81" front-to-back. Applications: Case IH Maxxum, Magnum, Puma, Steiger, MX Series Maxxum, MX Series Magnum, MXM and STX Series Tractors: Maxxum Series: 120 Magnum Series: 180, 190, 210, 215, 225, 235, 245, 255, 260, 275, 290, 305, 315, 335, 340 Puma Series: 130, 165, 170, 180, 185, 195, 200, 225, 230 Steiger Series: 280, 330, 335, 350, 380, 385, 400, 430, 435, 450, 480, 485, 500, 530, 535, 550, 600 MX Series Maxxum: MX100C, MX120, MX135, MX150 MX Series Magnum: MX180, MX200, MX210, MX215, MX220, MX230, MX240, MX245, MX255, MX270, MX275, MX285, MX305 MXM Series: MXM120, MXM130, MXM140, MXM155, MXM175, MXM190 STX Series: STX275, STX280, STX325, STX330, STX375, STX380, STX425, STX430, STX440, STX450, STX480, STX500, STX530 Ford-New Holland T7, T8, T9, TG, TJ and TM Series Tractors: Ford-New Holland Tractors: 8160, 8260, 8360, 8560, 8670, 8770, 8870, 8970, 9680, T8010, T8020, T8030, T8050, T9020, T9030, T9040, T9050, T9060 T7 Series: T7.210, T7.235, T7.250, T7.260, T7.270 T8 Series: T8.275, T8.300, T8.330, T8.360, T8.390 T9 Series: T9.390, T9.450, T9.505, T9.560, T9.615 TG Series: TG210, TG215, TG230, TG245, TG255, TG275, TG285, TG305 TJ Series: TJ325, TJ330, TJ375, TJ380, TJ425, TJ450, TJ480 TM Series: TM115, TM120, TM125, TM130, TM135, TM140, TM150, TM155, TM165, TM175, TM190 John Deere 7000-7010 and 8000-8010 Series Tractors: 7000 Series: 7200, 7400, 7500, 7600, 7700, 7800 7010 Series: 7210, 7410, 7510, 7610, 7710, 7810 8000 Series: 8100, 8200, 8300, 8400 8010 Series: 8110, 8210, 8310, 8410