Genuine Caterpillar OEM 5T2421 Supplemental Steering Pump Housing. This housing provides the mounting enclosure for the supplemental steering pump used in Cat hydraulic steering systems, serving as the interface between the pump and the machine’s steering circuit. The part is cataloged as 5T2421, with at least one retailer listing it as compatible with Cat 130G machines; always verify fit against your equipment’s serial number in the Cat Parts catalog.
