Ordering by number: this is 1638390402, the Chicago Pneumatic mounted support. It is a pre-built assembly for the tool, ordered when replacing the whole section is faster than rebuilding it.

If you are working from a machine rather than a part number, start at the parts diagram hub, or send us the model and serial and we will match it. Machines themselves are on the CP tool catalog. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.

• Part number: 1638390402
• Manufacturer: Chicago Pneumatic
• Crowder SKU: CP-1638390402