Throttle Valve, Atlas Copco part number 3121521500, listed at Crowder Supply as AC-3121521500. It governs how air reaches the working end of the tool. Wear on the sealing land is the usual cause of a throttle that leaks with the trigger released.
The parts diagram library is where to start if you are working back from a machine or send the model and serial and we will confirm it. Complete tools sit on the Atlas Copco lineup. Denver stock, with same-day shipment on in-stock orders in by 4 PM ET.
- Part number: 3121521500
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3121521500