The Concentric 325186 Hydraulic Pump is an aftermarket replacement unit designed to replace Yale part 504226278. As a Concentric-branded pump, it bears part number 325186 and is intended as a direct replacement for Yale hydraulic systems that use the specified pump. Before ordering, confirm that your Yale system requires the 504226278 replacement and that the 325186 pump is a correct fit for your hydraulic circuit.
