From inside (document excerpt):
RIDING GREENSMASTERS Greensmaster® 3/300/3000/3100 Series Always consult your product’s Parts Catalog to insure ordering the correct part.
The part needed may not be listed in this program catalog. Ref. Part No. No. Description Qty. Reqd. 1 2 2 73 67-4330 108-3841 492932S…