Oil pump compatible with MTD chainsaw models: 1435A, 1635A, 1640 NAVCC, 1840 AVCC, XM40, MS40, MS40A, MX40 MCCULLOCH models: MCC1435A, MCC1635A ,MCC1635AK, CS35, CS35S , MXC1840D, MXC1840DK MXC1840DH, PMC-1840BKX, MCC1840B, EBC1640BK, EBC1840DK, MCC1840BC MS4016PACC, MS4016PAVCC ,MS4018PAVCC, MS354 EB356, EB356A, EB358A PARTNER models: P340S, P350S, P360S PART NUMBER: ORIGINAL PART NUMBER: 9228-310805 MC-9228-310805 310805 CZ