Cascade 666184 O-Ring 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 CAS-666184. Catalog description: OR-90NBR-11/16x3/32-C/S(50).
Product Details
- Hercules part number: CAS-666184
- Product type: O-ring or sealing component
- Reference brand/application: Case
- Approximate weight: 0.02 lb
- Catalog data source: 2026 US Mobile Kit Catalog, 2026 US Industrial Catalog
Catalog Application Data
- Equipment type: Loaders - Wheel
- Catalog page reference: 52, 171
Use this product when your parts book, service manual, cylinder repair list, pump/motor breakdown, or existing component calls for CAS-666184. 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 CAS-666184 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.