Caterpillar Inc. 2S-9529 Plunger

Caterpillar 2S-9529 Plunger is an authentic OEM component for CAT oil pump assemblies, designed to fit Caterpillar lubrication systems and ensure accurate displacement within the pump. Listed in CATCorp catalogs as 2S-9529 (PLONGEUR in French, TRZPIEŃ in Polish), this plunger plays a crucial role in regulating oil delivery and maintaining consistent pressure across the lubrication circuit. As a genuine Caterpillar part, it is built to withstand the demands of heavy equipment operation and to integrate with the surrounding oil pump components for dependable performance. Use this replacement plunger when servicing Caterpillar engines that rely on a plunger-type oil pump, helping to preserve pump efficiency and reduce wear by restoring the pump’s intended stroke and flow characteristics. This part is typically referenced in Caterpillar’s parts catalogs under oil pump components and is suitable for use in machinery where a CAT oil pump plunger is specified. Being an authentic OEM Caterpillar part, 2S-9529 is designed to meet Caterpillar’s manufacturing tolerances and service catalog standards, ensuring reliable interaction with other CAT lubrication components and validating correct replacement in maintenance workflows.