This is Atlas Copco part number 3121059783 back head kit, stocked at Crowder Supply as AC-3121059783. Kits like this group the parts that get replaced together, which saves ordering them one at a time and cuts a second teardown out of the job.
It appears on the BBC 34W WS Pusher Leg Drill and 160 Paving Breaker, and on 1 other machine breakdown.
Use the parts diagram hub to work through the rest of the assembly, or the Atlas Copco lineup if you are pricing a replacement machine. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: 3121059783
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3121059783
- Listed on breakdowns for: BBC 34W WS Pusher Leg Drill, 160 Paving Breaker, BBC 16W WS Pusher Leg Drill

