The Dewalt N087118SV Compressor Pump & Motor Assembly provides the pumping and motor functions needed to generate compressed air in compatible Dewalt air compressors. The motor drives the pump, which compresses air to support pneumatic tools and other air-powered applications. This assembly is a practical replacement for a worn, damaged, or malfunctioning unit that may affect compressor performance. Replacing a faulty assembly can help restore reliable operation and consistent air delivery. Before purchasing, verify your compressor model and part number to ensure the assembly fits your equipment correctly.