AirCraft Air Impact Wrench Service Kit – Throttle & Valve Stem (29–34) for AT0004 (AT0004-SK08)
At a Glance: Throttle/trigger valve service kit for the AirCraft AT0004 including spring, valve seat/cap and sealing O-ring to restore smooth air control.
The throttle valve is the “tap” that controls how much air enters your impact wrench when you pull the trigger. If the valve stem or seat is worn, or the spring and seals are tired, you can get air leaks, a sticky trigger feel, weak power delivery or a tool that won’t shut off cleanly. The AirCraft AT0004-SK08 service kit replaces the throttle and valve stem components (reference 29–34), helping your AT0004 regain crisp trigger response, stable airflow control and dependable performance—especially under repetitive workshop use.
A healthy throttle valve gives you predictable starts, smooth modulation and better efficiency. Renewing the spring and seals helps the valve return properly and keeps air from escaping where it shouldn’t—meaning more power at the tool and less wasted air.
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