ARO 94390 3 CAP, UPPER | Replacement Part for Industrial Service 94390

ARO 94390 3 CAP, UPPER

The ARO 94390 is a replacement 3 CAP, UPPER intended for service and maintenance of Piston Pump Packages. It is listed by the manufacturer part number, making the part number the most reliable reference when matching a replacement to an existing assembly.

This product page is written for maintenance teams, equipment owners and purchasing staff who need a clear way to identify the correct component. Before purchase, compare the complete equipment model, existing part number, connection or dimensional requirements, and the quantity required for the repair.

Product Role and Service Application

The 3 CAP, UPPER is used as a service component rather than as a complete standalone system. Its exact function depends on the equipment configuration in which it is installed. Based on the supplied catalog data, the relevant application is Piston Pump Packages.

During maintenance, inspect the surrounding assembly for wear, contamination, damaged threads, distorted sealing surfaces, loose hardware or other conditions that could affect the new component. Replacing a single part without checking related components can leave the underlying service issue unresolved.

Material and Construction

The source data does not provide a confirmed material specification for this item. For applications where material compatibility is important, verify the required construction from the equipment parts manual or manufacturer documentation before ordering.

Available Product Details

• Part number: 94390
• Brand: ARO

Catalog notes can describe the component or its intended equipment family, but they do not replace the full parts list for a specific machine. Similar ARO assemblies may use visually similar parts with different dimensions, materials, pressure ratings or service-kit relationships.

Compatibility Check Before Ordering

Use 94390 as the primary ordering reference. Confirm the complete pump, filter, regulator, lubricator, finishing-system or package model as applicable. If the existing component carries a readable number, compare it directly with the catalog part number before purchase.

Also confirm whether the repair requires one individual component or multiple pieces. Assembly drawings sometimes show a quantity used per machine that differs from the quantity supplied in one sales package.

Maintenance and Installation Guidance

Installation should follow the applicable manufacturer service procedure. Depressurize and isolate equipment before maintenance, clean the service area, and inspect mating components before fitting the replacement. Seals, fittings, valves, bowls, gauges, hoses and structural components each have different installation requirements, so use the procedure for the exact equipment model rather than a generic method.

If the removed component shows unusual wear, investigate the cause before returning the equipment to service. Misalignment, contamination, incorrect pressure, chemical incompatibility, damaged mating parts or improper assembly can shorten replacement-part life.

Ordering ARO 94390

For an accurate maintenance order, provide the ARO 94390 part number, complete equipment model, required quantity and any known material, voltage, pressure, dimensional or connection requirements. This helps reduce ordering errors and makes it easier to confirm that the replacement matches the intended application.