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 replacement aftermarket tension idler for the following Bobcat® mini excavator models:
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.
The 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. The actual tensioner and spring are sold separately. This is the idler wheel and mounting arms exactly as seen in the picture. If your track is not tensioning all of the way or the track is de-tracking consistently then this is the first part on your undercarriage to inspect. As idlers wear the track lose tension.
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