Left Wheel Module fits all Roomba 500 Series: 505, 510, 520, 521, 530, 531, 532, 534, 535, 545, 550, 552, 555, 560, 562, 564, 570, 571, 572 Pet, 572 Pet, 572 80, 58 595 PET, etc. All Roomba 600 Series: 610, 615, 620, 630, 650, 651, 660, 661, 655, 680, 681,690, PET, etc. All Roomba 700 Series: 760, 770, 780, 790, 765, 775, 776, 782, 772, 786, 785, 790, etc. All Roomba 800 series: 866, 870, 871, 880, etc. 960 966, 980, etc.
