MTD Mulching Plug No. 731-2363. This is an original MTD part. There has been a design change in this from the original manufacturer and you may need to also order one each DOP712-3087 Wingnut; DOP736-0270 washer and DOP710-0134 Bolt. This replaces part numbers 731-2363A and 7312363.
AYP / Craftsman / Sears Front Chassie Suspension Bracket No. 53117021. This is an original AYP part that replaces part numbers 169835, 199978, and 532199978.
Husqvarna Idler Pulley No.532193197. This is an original husqvarna primary idler pulley, measures 4" lip to lip. Replaces husqvarna part number 532-19-31-97 and 532 19 31-97.
AYP/Sears/Craftsman Rear Axle No. 911-04142. This is an original equipment rear axle assembly. Replaces part numbers 911 04142, 91104142, 911-04142A, 61104142, 611 04142 and 611-04142