DescriptionThe waveguide covers the hole through which the microwaves are fed into the oven cavity from the waveguideIt acts as a barrier to stop grease and food particles from entering the opening of the waveguideIf the part begins to arc or spark during a cook cycle, it needs to be replaced. Continued use will cause burning of the paint and cavity and will eventually damage the magnetron tube.This cover replaces Sharp part #PCOVPA301WRE0This waveguide cover fits ONLY the following Sharp microwave models :R930AK, R930AW, R930AWF, R930CS, R9H66, R9H76, R9H81B, R9H84, R9H84B, R9H94B,SMC1585BB,SMC1585BS, SMC1585BW, SMC1585KB, SMC1585KS, SMC1585KWView AllClose