This is the Atlas Copco throttle valve spring part number 9245998745, Crowder SKU AC-9245998745. 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.

If you are working from a machine rather than a part number, start at the full diagram library, or send us the model and serial and we will match it. Machines themselves are on the Atlas Copco lineup. Denver stock, with same-day shipment on in-stock orders in by 4 PM ET.

• Part number: 9245998745
• Manufacturer: Atlas Copco
• Crowder SKU: AC-9245998745