Caterpillar 3G-3813 Spool

Caterpillar 3G-3813 Spool is a genuine Caterpillar replacement part, cataloged as 3G-3813. It is described in Cat’s official catalogs as a spool component used inside hydraulic valve assemblies to control fluid flow as the spool shifts within the valve body. The 3G-3813 designation appears in Cat and authorized distributor listings as the exact part for this geometry, making it a direct replacement for machines and configurations that call for that spool. Because Cat equipment configurations vary, the precise fitment depends on the valve model and service context, so be sure to verify compatibility with Caterpillar’s official parts diagrams or with your Cat dealer using the 3G-3813 reference before ordering. Installing the correct spool helps maintain the valve’s expected response and hydraulic performance in Cat systems. Typical applications include hydraulic control circuits in Cat machinery where a dedicated spool is specified by the valve manufacturer, spanning medium- to heavy-duty equipment. As a genuine Cat component, it is produced to Caterpillar’s manufacturing and interchangeability standards to ensure reliable operation when matched to the correct valve body and configuration. For the exact scope of compatible models and installation guidance, consult Caterpillar’s parts catalog or your local Cat dealer with the 3G-3813 part reference.