Caterpillar Main Pump Spring 118-4057

Caterpillar Main Pump Spring 118-4057 is part of the 19PARTS KOM line, our Keep Ops Moving™ hydraulic parts program for Caterpillar equipment applications. This Korean-made aftermarket hydraulic component is selected for buyers who need dependable sourcing, clear part-number identification, and practical support for machine downtime situations.

Product overview

Part number 118-4057, alternate no-dash reference 1184057, is listed as a Spring for main pump service.

Reference code

19PARTS / supplier reference: M118-4057.

Machine applications from source data

KOM hydraulic standard

KOM stands for Keep Ops Moving™. For hydraulic repair parts, that means we focus on traceable sourcing, Korean-made component options where available, clean cross-reference support, and fitment verification before the part reaches the customer.

Fitment verification

Always confirm this Caterpillar replacement part by part number, machine model, serial range, hydraulic component, and service-book information before ordering. Use the original Caterpillar number, reference code, and any listed cross references as verification points.

Quality note

This KOM replacement component is listed to support dependable hydraulic repairs, practical availability, and the Keep Ops Moving™ standard.