This is the Switch Harness for Radio receivers fits perfect in your IGT8. The switch harness connects the receiver battery to the receiver by way of an ON/OFF switch. It also allows you to charge the receiver battery without removing it from the model.
One Switch Harness w/ J Connectors and Charge Cord.
Distance between mounting holes Ctr-Ctr: 19mm ir/jl Width: 24mm UPGX11/13/13 Thickness: 10.6mm Height of switch body: 20mm Height from bottom of switch body to tip of switch: 27.3mm