Top Roller 4718355 for John Deere Mini Excavator Undercarriage 50G 35G 26G 30G. All products are guaranteed for 12 months. John Deere 50G 35G 26G 30G. This top roller also fits the following models but there are certain serial breaks. John Deere 27D mini excavators serial number 255560 and above. John Deere 35D models serial number 265000 and above. John Deere 50D serial numbers 275361 and above. Please make sure it will fit your machine before purchasing it. If you are not 100%. Sure this is what you need, please find out your engine model, series number and contact our Customer-service. Please check pictures for more details. Communication is the best way to solve the problem. If you have any problems after you. Re opening a return or case.