The "cutter housing" (mower deck) is Honda part number 76111-VE2-030ZB, suggested list price $118.36. Showing in-stock at Honda parts warehouses. Google the part number to find a Honda Dealer selling it online, or use this link to find a Honda Dealer in your area: Find A Honda Dealer
The "030ZB" is the correct deck for HRB216 model, which came with the 160cc engine
The "040ZB" may be used for either the HRB216 or the HRB217, which came with the 190cc engine. The "040ZB" is +$0.80 more MSRP.