WP61001846 : Whirlpool Refrigerator Defrost Heater.
Part Number WP61001846 (AP6009936) replaces 61001846, 29815-1, 31-264, 52530-1, 52530-6, 52764-1, 52764-14, 52764-6, 52764-8, 61001139, 663823, 67679-1, 69848-1, 698482-1, 978288, B13-457, GH264, PS11743110, RA95043-1.