Replaces Ariens 510015, 51001500. Fits Ariens large frame snowthrowers. Also Replaces Snapper 1-3865, 9-1550, 91550, and John Deere AM122156, AM136890 - To ensure the part is correct for your machine, verify by model number & serial number (normally located on the back of the frame between the wheels) of the snowblower. Unless it is a Murray snowblower in which the model and serial number is normally located on the auger housing, or on the gear box assembly. Some snowblower accessories may also have their own model number.