Hitachi 4140490 O-Ring 90 Durometer

Hitachi 4140490 O-Ring 90 Durometer 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 HIT-4140490. Catalog description: O-RING (1).

Product Details

• Hercules part number: HIT-4140490
• Product type: O-ring or sealing component
• Reference brand/application: Hitachi
• Approximate weight: 0.121 lb

Use this product when your parts book, service manual, cylinder repair list, pump/motor breakdown, or existing component calls for HIT-4140490. 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 HIT-4140490 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.