O-ring
| Machine | Model | Years / S/N |
|---|---|---|
| Excavator | WX210E | — |
| Excavator | WX175E SR | — |
| Excavator | WX160E | — |
| Excavator | WX155E SR | — |
| Excavator | WX140E | — |
| Excavator | CX26C | 2020 |
| Excavator | CX17C | 2020 |
| Excavator | CX37C | 2020 |
| Excavator | CX30C | 2020 |
| Excavator | CX60C | — |
OEM O-Ring #S621 - OEM Leak Repair Part for Case Construction Equipment Service Technicians turn to this OEM part for repair jobs involving repair of sealing points affected by seepage, contamination, or compression set, where gasket failure, compression set, fluid leakage, and dirt intrusion can interrupt normal operation. Often searched by buyers handling oil leak repair, o-ring replacement, and Case equipment gasket service service work.
More Details
Part Number: S621
Application: Repair application: Seal or gasket replacement used to repair fluid leaks, worn sealing surfaces, contamination entry, and failed OEM sealing points.
Key Features:
- OEM replacement for worn seals, failed gaskets, or damaged sealing points
- Helps restore fluid containment and protect against contamination entry
- Direct-fit service part for leak repair and routine maintenance replacement
Fits Case Models: Compatible with various Case construction equipment models - verify fitment before ordering
Replaces: Refer to manufacturer cross-reference if applicable
- Manufacturer part number
- S621-011004
- Internal SKU
- IC:S621-011004
- Brand
- CASE CONSTRUCTION
- Condition
- OEM, new
- Category
- Case Construction
Free pickup at any of our 17 branches across Ohio, Indiana, Michigan, and Kentucky. Select your preferred branch at checkout.
30-day no-fault returns. Bought the wrong part? Send it back for a full refund — no restocking fees, no minimums.
All 33 fitments
| Machine | Model | Years / S/N |
|---|---|---|
| Excavator | WX210E | — |
| Excavator | WX175E SR | — |
| Excavator | WX160E | — |
| Excavator | WX155E SR | — |
| Excavator | WX140E | — |
| Excavator | CX26C | 2020 |
| Excavator | CX17C | 2020 |
| Excavator | CX37C | 2020 |
| Excavator | CX30C | 2020 |
| Excavator | CX60C | — |
| Excavator | CX57C | — |
| Excavator | E17C | 2020 |
| Excavator | E26C | 2020 |
| Excavator | E30C | 2020 |
| Excavator | E37C | 2020 |
| Excavator | E57C | — |
| Excavator | E60C | — |
| Excavator | CX19C | 2020 |
| Excavator | E19C | 2020 |
| Excavator | E37C | — |
| Excavator | CX18C | — |
| Excavator | CX17C | — |
| Excavator | CX37C | — |
| Excavator | CX26C | — |
| Excavator | CX33C | — |
| Excavator | CX30C | — |
| Excavator | E18C | — |
| Excavator | E17C | — |
| Excavator | E26C | — |
| Excavator | E30C | — |
| Excavator | E33C | — |
| Loader | 1221F | — |
| Loader | 1221E | — |