Fits in Models: GTDP200EF3WS, GTDP220EF3WW, GTDP280ED4WW, GTDP280EH1WS, GTDX185ED4CC, GTDP180ED4WW, GTDP220GF3WW, GTDP490GD4WS, GTDP490ED5WS, GTDX180ED3WW, GTDX185GD4CC, GTDP490GD5WS, GTDP200GF4WS, GHDP490GF4WW, GHDP490EF4WW, HTDX100GD4WW, GTDP490ED8WS, GTDN550ED4WW, GTDN550ED5WW, GTDP520ED4WW The GE IDLER ARM - Part# WE03X20434 is a part used in many GE dryers. It is a metal arm that connects the drive belt to the drum of the dryer. The idler arm helps to keep tension on the drive belt, which allows the drum to rotate and turn the clothes inside. The idler arm also helps to reduce noise and vibration from the dryer. This part is made of metal and is designed to last for many years with proper maintenance. If your dryer is making excessive noise or vibrating, it may be time to replace this part. This part is an idler arm for a dryer. It is used to support the drum belt and help keep it in place. It can fix symptoms such as the dryer not spinning, the belt slipping, or the drum making a loud noise when it spins.