If you already have an 8-pole stator, this unit will replace yours if it has 5 wires. Note: Although this stator is for AC-fired systems, Trailmaster used it on their DC-fired system. They just leave the red/black wire disconnected inside the harness. This stator is the same unit in our STAGE 1 Electrical Upgrade Kit. If you're looking to upgrade, be sure to get the whole kit too as your original flywheel won't fit.