Throttle Valve is the American Pneumatic Tool service part carried under part number 18857. This is control gear it meters air to the chipping hammer. A worn control gives creep, hard starting, or a tool that will not shut off cleanly.
It appears on the M43 M44 4-Bolt Chipping Hammer breakdown. Check it against the reference number on the diagram first; serial breaks change what fits.
If you need the parts around it, the parts breakdown index has the full breakdown library, and the American Pneumatic catalog covers the machines themselves. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: 18857
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT18857
- Listed on breakdowns for: M43 M44 4-Bolt Chipping Hammer
