New undercarriage parts and rubber tracks are sold individually but we suggest replacing all of your worn parts at the same time.
This is the Doosan 200102-00003A replacement aftermarket tension idler for the following mini excavator models:
The 200102-00003A tension idler installs on the opposite end of the undercarriage from the sprocket and this is the part that expands out as you pump the grease in the tensioner to tighten the rubber track. Some people refer to this larger roller as the pulley. It comes fully assembled exactly as pictured but does not come with the actual tensioner or spring. This is the full idler assembly with mounting arms.
Due to the weight of this idler it must ship via freight truck on a pallet. Do not choose the Fedex Ground option or it will delay your order.
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