O-ring
| Machine | Model | Years / S/N |
|---|---|---|
| Loader | TV450B | 2025 |
| Loader | TV370B | 2025 |
| Loader | TR310B | 2025 |
| Loader | TR270B | 2025 |
| Loader | TR340B | 2025 |
| Tractor | SL27 TR | — |
| Tractor | SL35 | — |
| Tractor | SL35 TR | — |
| Tractor | SL50 TR | — |
| Tractor | SL27 | — |
OEM O-Ring #51665565 - OEM Seal and Gasket Replacement for Case Construction Equipment Where machine service requires correction of oil leaks, seepage, contamination entry, and worn sealing lips, this OEM component provides a direct replacement for worn seals, gasket damage, and leak-related equipment service. Commonly sourced for oil leak repair, o-ring replacement, and Case equipment gasket service needs on heavy equipment.
More Details
Part Number: 51665565
Application: Repair application: Seal or gasket replacement used to repair fluid leaks, worn sealing surfaces, contamination entry, and failed OEM sealing points.
Key Features:
- Designed to replace sealing components affected by wear, leakage, or compression set
- Supports repair of oil seepage, fluid loss, and dirt intrusion issues
- OEM-style fit for efficient installation during heavy equipment service
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
- 51665565
- Internal SKU
- IC:51665565
- Brand
- CASE CONSTRUCTION
- Condition
- OEM, new
- Category
- Case Construction
- Weight
- 2.2 lb
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 56 fitments
| Machine | Model | Years / S/N |
|---|---|---|
| Loader | TV450B | 2025 |
| Loader | TV370B | 2025 |
| Loader | TR310B | 2025 |
| Loader | TR270B | 2025 |
| Loader | TR340B | 2025 |
| Tractor | SL27 TR | — |
| Tractor | SL35 | — |
| Tractor | SL35 TR | — |
| Tractor | SL50 TR | — |
| Tractor | SL27 | — |
| Skid Steer | SV340B | 2025 |
| Skid Steer | SV280B | 2025 |
| Skid Steer | SV185B | — |
| Skid Steer | SR240B | 2025 |
| Skid Steer | SR210B | 2025 |
| Skid Steer | SR175B | 2025 |
| Skid Steer | SR270B | 2025 |
| Loader | C332 | 2025 |
| Loader | C327 | 2025 |
| Loader | C330 | 2025 |
| Loader | C345 | 2025 |
| Loader | C337 | 2025 |
| Tractor | ML35 T | — |
| Tractor | ML27 T | — |
| Tractor | ML50 T | — |
| Tractor | ML27 | — |
| Skid Steer | L334 | 2025 |
| Skid Steer | L328 | 2025 |
| Skid Steer | L318 | 2025 |
| Skid Steer | L321 | 2025 |
| Skid Steer | L320 | 2025 |
| Skid Steer | C334 | 2025 |
| Loader | TR270B | — |
| Loader | TR340B | — |
| Loader | TR310B | — |
| Loader | DL550 | — |
| Loader | TV620B | — |
| Loader | TV450B | — |
| Loader | TV370B | — |
| Skid Steer | SV280B | — |
| Skid Steer | SR270B | — |
| Skid Steer | SR240B | — |
| Skid Steer | SR210B | — |
| Skid Steer | SR160B | — |
| Skid Steer | SV340B | — |
| Loader | C362 | — |
| Loader | C345 | — |
| Loader | C337 | — |
| Loader | C334 | — |
| Loader | C332 | — |
| Loader | C330 | — |
| Loader | C327 | — |
| Skid Steer | L334 | — |
| Skid Steer | L328 | — |
| Skid Steer | L321 | — |
| Skid Steer | SR175B | — |