Porter Cable 5140170-71 Valve Plate Assembly

Product Description

The PORTER CABLE 5140170-71 is a valve plate assembly designed for use in air compressors. The valve plate is a critical internal component that controls the flow of air through the compression chamber by housing the intake and discharge reed valves. It seats between the cylinder and the cylinder head, creating the sealed passages necessary for the compression cycle to function correctly. This part is installed by compressor service technicians and experienced trades professionals performing pump-end rebuilds or addressing loss of compression.

This valve plate assembly is suited for air compressor pump repair applications where the existing valve plate has cracked, warped, or suffered valve failure resulting in reduced output pressure or inability to build pressure. It is intended as a direct OEM-style replacement part, restoring the pump to factory compression performance.

Key Features

• OEM replacement valve plate assembly for air compressor pump-end service
• Houses intake and discharge reed valves that regulate compression chamber airflow
• Designed to restore proper compression output after pump wear or valve failure
• Precision-machined seating surfaces to ensure cylinder-to-head sealing integrity

Compatibility

Designed as an OEM-style replacement valve plate assembly for PORTER CABLE air compressors. Consult the equipment service manual or PORTER CABLE parts lookup using the unit model number to confirm fitment before ordering.

Installation Notes

Installation should be performed by a qualified technician familiar with reciprocating air compressor pump service. Disconnect power and fully depressurize the tank before disassembly. Remove the cylinder head and inspect the cylinder bore, gaskets, and reed valves before reinstalling the new valve plate. Follow the compressor manufacturer service documentation for proper reassembly sequence and fastener procedure.

Technical Specifications

• Component Type: Valve Plate Assembly
• Application: Air Compressor Pump End

Standard Information

• Brand: PORTER CABLE
• Manufacturer Part Number: 5140170-71