All of our new parts are aftermarket replacements. Compatible with Case Skid Steer Loader(s) 410 (NA s/n N7M480924-later & EU s/n N7M468736-later), 420 (Europe s/n N8M466713-later), 420CT (s/n N7M45510-later). Compatible with Case IH Tractor(s) DX48 (SSS s/n CV10001-CV10033), DX55 (SSS), DX60 (SSS s/n Z7NFE1001-later), Farmall 55, Farmall 60. Compatible with New Holland Skid Steer Loader(s) L170 (NA s/n N7M456357-later & EU s/n N7M468799-later), L175, LS170 (engine s/n 108982-later). Compatible with New Holland Tractor(s) Boomer 4055, Boomer 4060, T2410, T2420, TC55DA. Replaces Case OEM Number(s) 87780726. Replaces Case IH OEM Number(s) 87772751. Replaces New Holland OEM Number(s) SBA135756171, SBA135756170, SBA135756172. 5 Bolt mounting flange only. All States Ag Parts Item No.