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 aftermarket replacement drive sprocket designed to replace your original Caterpillar®303CR and 303ECR mini excavator sprocket.
Sprocket specifications:
We suggest changing your tracks and sprockets at the same time as they are designed to wear together. You will also save 5% off your purchase when you buy your tracks and sprockets at the same time in a combo!
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