Replacement For Part #4681JB1029H, 4681JK1004A, 4681JB1027N, AP4439225 and PS3523341. This Whirlpool blower motor assembly controls the flow of cold air from the freezer compartment into the refrigerator compartment. It has dimensions of 15.4 x 5.4 x 5.2". Works with some Whirlpool brand oven/ranges.