Overview
The ZF 0501.213.090 WHEEL is a critical OEM genuine component engineered for the planetary gear sets within heavy-duty construction machinery transmissions. This precision-machined wheel acts as a load-bearing interface, transferring torque from the sun gear to the planetary carrier while maintaining exact gear mesh alignment. As a rotating element within the clutch pack assembly, the SKU 0501.213.090 ensures smooth power distribution under extreme loads. It is frequently installed alongside the 4699101045: HOUSING and the 4699301108: HOUSING to form a sealed, high-torque assembly. Without this wheel, the transmission cannot maintain proper gear engagement, leading to catastrophic drivetrain failure.
Symptoms of Failure
- Erratic gear engagement and slipping under load: When the 0501.213.090 wheel wears, its splines or bearing surfaces degrade, causing the transmission to slip out of gear during heavy excavation or grading operations.
- Metallic grinding noise from the transmission housing: A worn wheel creates excessive backlash between planetary gears, producing a distinct grinding sound that intensifies with throttle application.
- Contaminated transmission fluid with metallic particles: As the wheel surface erodes, fine steel shavings enter the hydraulic circuit, often visible during oil changes or filter inspections.
- Intermittent loss of drive in forward or reverse: The wheel’s inability to maintain concentric rotation causes the clutch pack to disengage intermittently, particularly when the machine is under high torque demands.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 0501.213.090 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Outer Diameter | 185 mm (estimated) |
| Inner Diameter | 95 mm (estimated) |
| Thickness | 28 mm (estimated) |
| Weight | 2.4 kg (estimated) |
| OEM Reference | ZF 0501.213.090 |
| Surface Hardness | 58-62 HRC |
Compatibility
This ZF wheel is designed for use in the WG180, WG200, and WG211 transmission series commonly found in wheel loaders, graders, and telescopic handlers. It directly interfaces with the 4699301085: COVER and the 4699301014: THREAD PROTECTIVE SHIELD to secure the planetary assembly. The 0501.213.090 is also compatible with select ZF 4WG-200 and 6WG-200 variants used in agricultural tractors and mining equipment. Always verify your transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4699101045 | HOUSING | Encloses planetary gear set |
| 4699301108 | HOUSING | Supports clutch pack assembly |
| 4699301085 | COVER | Seals transmission cavity |
| 4699301014 | THREAD PROTECTIVE SHIELD | Prevents thread damage |
| 0634303141 | O-RING | Hydraulic seal |
| 0734307407 | PROTECTION CAP | Port protection |
| 0634301843 | SHAFT SEAL | Prevents oil leakage |
| 0630502034 | RETAINING RING | Axial locking |
| 0637885612 | BREATHER | Pressure equalization |
| 0636102023 | CAP SCREW | Fastener |
