Use the Parts search at www.Red cat racing.Com to make sure you are purchasing the right part for your vehicle. This item is compatible with the following Redcat Racing models: aftershock 21 aftershock 3.0 aftershock 3.5 aftershock 8E backdrop 3.5 backdraft 8E CALDERA 3.0 EARTHQUAKE 3.0 EARTHQUAKE 3.5
