Idler Gear
| Machine | Model | Years / S/N |
|---|---|---|
| Loader | 721G | — |
| Loader | 1121G2 | 2023 |
| Loader | 721E | — |
| Loader | 721F | — |
| Loader | 821F | — |
| Loader | 1021G WHEEL LOADER | 2023 |
| Loader | 721G2 WHEEL LOADER | 2023 |
| Loader | 721G2 WHEEL LOADER | — |
| Loader | 921F XR | — |
| Loader | 821G WHEEL LOADER | 2023 |
OEM Idler Gear Z=63 #8603515 - OEM Brake and Drivetrain Replacement for Case Construction Equipment This direct replacement part is intended to restore equipment after worn brake components, drivetrain service issues, and poor drive response has led to brake fade, drivetrain wear, rough operation, and reduced response. A practical OEM option for OEM brake replacement, drivetrain repair, drive-system service, and Case equipment maintenance jobs in the field.
More Details
Part Number: 8603515
Application: Common service application: Brake or drivetrain replacement part used to repair worn drive components, braking issues, weak engagement, or service-related power-transfer faults.
Key Features:
- Designed to replace damaged drive-system parts affected by wear or weak response
- Supports repair of brake fade, poor engagement, and drivetrain service issues
- OEM-style fit for efficient installation during maintenance work
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
- 8603515
- Internal SKU
- IC:8603515
- Brand
- CASE CONSTRUCTION
- Condition
- OEM, new
- Category
- Case Construction
- Weight
- 11.51 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 39 fitments
| Machine | Model | Years / S/N |
|---|---|---|
| Loader | 721G | — |
| Loader | 1121G2 | 2023 |
| Loader | 721E | — |
| Loader | 721F | — |
| Loader | 821F | — |
| Loader | 1021G WHEEL LOADER | 2023 |
| Loader | 721G2 WHEEL LOADER | 2023 |
| Loader | 721G2 WHEEL LOADER | — |
| Loader | 921F XR | — |
| Loader | 821G WHEEL LOADER | 2023 |
| Loader | 1121G WHEEL LOADER | 2023 |
| Loader | 821G2 WHEEL LOADER | 2023 |
| Loader | 921G2 WHEEL LOADER | 2023 |
| Loader | 921G WHEEL LOADER | 2023 |
| Loader | 721G+ | — |
| Loader | 721G WHEEL LOADER | 2023 |
| Loader | 821G+ | — |
| Loader | 821G | — |
| Loader | 921G | — |
| Loader | W170 | — |
| Loader | 721G2 | — |
| Loader | 821G2 | — |
| Loader | 921G2 | — |
| Loader | 1021G | — |
| Loader | 1121G | — |
| Loader | 921F | — |
| Loader | W190C | — |
| Loader | W170C | — |
| Loader | W230C | — |
| Loader | 821E | — |
| Loader | W170B | — |
| Loader | W190B | — |
| Loader | W170TC | — |
| Loader | 721D | — |
| Loader | 821C | — |
| Loader | LW170.B | — |
| Loader | LW190.B | — |
| Loader | 721C | — |
| Tractor | 4994 | — |