618105004

In plain terms, 618105004 is a Walvoil Fluid Power component identified as “WALVOIL EL SDS180/18L-SAE,” and it may also show up under alternate numbers C1KK60 or FVL618105004.

Walvoil makes this as part of their SDS180 series, and based on the EL SDS180/18L-SAE designation it falls into their electro-hydraulic sectional directional control valve line. The SAE connection spec and the 18L sizing put it in a mid-range flow category suited for mobile or industrial hydraulic systems. It's a control component, not a standalone valve body, so it works within a larger fluid power circuit to direct flow based on electrical input.