Product Overview
The DeWalt N003990 Micro Pressure Switch is a replacement pressure control component designed for compatible air compressors. It monitors tank pressure and controls compressor cycling by switching the unit on and off at the specified pressure points. The switch is used within the compressor control system to help maintain consistent operating pressure during normal use. Its durable housing and electrical switching components are designed for repeated cycling in workshop and jobsite environments. Replacing a worn or malfunctioning pressure switch can help restore proper compressor operation when the unit does not start or stop correctly. The N003990 is documented for D55168 air compressors in Types 5, 6, 7, and 8, with some parts listings also specifying D55168-CA variants. Proper installation is important because the component handles both pressure control and electrical switching; disconnect power and fully relieve stored air pressure before servicing the compressor. Parts diagrams for D55168 Types 6, 7, and 8 identify N003990 as the Micro Press. Switch in the compressor assembly.
- Genuine DeWalt OEM power tool replacement part
- Please Reference Tool Diagram to Ensure Part Compatibility Before Ordering
- Origin of Manufacture and Packaging May Vary
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Brand:
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DeWalt
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Type:
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Micro Pressure Switch
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Color:
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Silver
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Compatible Tools:
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D55168 Type 5, Type 6, Type 7, and Type 8 air compressors; D55168-CA Type 5 through Type 8 variants (sold separately)
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Quantity:
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1
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Material:
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Metal
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Made in the USA:
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No
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Model:
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N003990
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