Parker/Commercial Intertech 391-1803-030 Seal Kit

Parker/Commercial Intertech 391-1803-030 Seal Kit is a Hercules catalog product available from WQC Parts for hydraulic cylinder, seal kit, pump, motor, valve, and heavy-equipment repair applications.

This listing uses Hercules part number CM-391-1803-030. Catalog description: Valve Series A20 Service Kit.

Product Details

• Hercules part number: CM-391-1803-030
• Product type: Pump, motor, valve, or hydraulic repair kit
• Reference brand/application: Parker/Commercial Intertech
• Approximate weight: 0.005 lb
• Catalog data source: 2026 US Mobile Kit Catalog, 2026 Pump, Motor, and Valve Repair Kits

Catalog Application Data

• Catalog section: PARKER / COMMERCIAL VALVE SERVICE KITS > VALVE SERVICE KITS
• Application reference: Valve
• Equipment type: Telehandlers; Excavators
• Model or series reference: A20
• Style / kit type: Service Kit
• Catalog page reference: 525, 1207, 17

Use this product when your parts book, service manual, cylinder repair list, pump/motor breakdown, or existing component calls for CM-391-1803-030. It is intended to help restore sealing performance, reduce leakage, and support reliable equipment repair when correctly matched to the application.

Fitment Verification

Before ordering, confirm the CM-391-1803-030 reference against your OEM reference number, machine model, cylinder location, bore and rod size, pump/motor series, and serial-number range. Manufacturer names and part numbers are used for identification and fitment reference only. If you are unsure, compare the old parts, measurements, and parts-book callout before installation.