http://bsintek.basco.com/BriggsDocumentDisplay/lfitwJX.UFzXFix2.pdf see pages 10-12 for parts, always use OEM Snapper parts. This is a good time to check item 40 idler pulley for replacement also because bearing located in center of idler may be worn out, you will need to remove idler for inspection of bearing by hand by spinning bearing, if not smooth replace idler.
