Original Sears Craftsman Husqvarna Part # 155046 ARM-IDLER
Must be used if replacing the 131845 brake arms.  The 131845 brake arms are no longer available (same with the 140084 idler arm) and will be subsituted with the 184907 brake arms.  the 184907 brake arms have larger rollers that will not fit in the old 140084 idler arm, it needs to be replaced with the 155046 idler arm that accommodates the larger rollers.