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The INGERSOLL 401-665 is a valve stop component used in Ingersoll Rand power tools. Valve stops regulate airflow within pneumatic tool assemblies, controlling the movement of air through the valve mechanism to manage tool operation and power delivery. This part is a direct service replacement intended for technicians performing internal repairs on compatible Ingersoll Rand pneumatic tools. Installation requires disassembly of the tool housing and familiarity with pneumatic valve train components.
This valve stop is sourced as a genuine Ingersoll Rand part, designed to restore proper valve function in pneumatic power tools. It is suited for use in professional shop environments and field service applications where maintaining precise air control within the tool is critical to performance and longevity.
Designed as an OEM-style replacement valve stop for Ingersoll Rand pneumatic power tools requiring internal valve assembly service.
Installation should be performed by a qualified pneumatic tool technician. Disconnect the tool from all air supply lines and depressurize completely before beginning disassembly. Refer to the Ingersoll Rand service manual for the specific tool model to confirm correct disassembly sequence and component orientation. Do not operate the tool until all internal components are properly seated and the housing is fully reassembled.
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