We carry a full line of replacement undercarriage parts for the Bobcat 430 Mini Excavators. We stock all of your undercarriage and rubber track needs including sprockets (6815922), bottom rollers (6814882), top carrier rollers (6814874), and idlers (6814880). Some parts are interchangeable with other Bobcat® models but the sprockets, for instance, are unique to the 335 and 430 model. There are five bottom track rollers per side so we offer these in five packs for convenience and savings. They are backed by the equivalent OEM manufacturer warranty. The parts listed are in stock and usually ship the same day. Bobcat® frequently changes part numbers so if you have a problem locating the part you need please give us a call. There are several serial number breaks and track options for this model so please verify before ordering. We also stock final drive motors for many Bobcat models.