This inverter module only fits Champion 4500W inverter 200986 200991 and 4650W inverter generator 200992 200993 200994, 201053.It doesn't fit other models. Please double check your generator models before ordering. Please note: This inverter module only fits the following Champion 4500W and 4650W inverter generator models mentioned below. Please check your generator model carefully.If your generator model is not listed out, please don't order it because it will not fit your model for sure. There are many different models for Champion 4500 watts and 4650 watt inverter generators. Even they may look very similar but the internal programs are not compatible with each other.. This Champion generator 4500 inverter module only fits Champioin 4500 watt inverter generator 200986 201053, and dual fuel inverter generator 200991. It doesn't fit other Champion 4500 watts inverter generators. This Champion generator 4650 inverter module only fits Champion 4650 watts generator 200992,dual fuel inverter generator 200994 and wireless remote start inverter generator 200993. It doesn't fit other Champion 4650 watts inverter generators. Quality matches the original Champion 4500 inverter assembly and Champion 4650 inverter board. Please make sure you really need it before ordering. All our products are stored in Amazon warehouse.It will become useless if the product is returned with damaged packing. Thank you for understanding. Item Weight 11.2 ounces Manufacturer TAPA Item model number CP4502 Product Dimensions 8 x 6 x 3.2 inches