Overview
The ZF 0501.216.150 STEERING GEAR is a precision-machined component designed to transfer rotational motion from the steering column to the hydraulic control valve within the transmission assembly. This OEM genuine part sits directly in the gearbox housing, interfacing with the 4699100080: BASIC GEARBOX to ensure precise steering response in heavy-duty applications. The SKU 0501.216.150 is manufactured to ZF’s exacting tolerances, providing reliable torque transmission and minimal backlash for WG100, WG130, and WG131 series transmissions.
Symptoms of Failure
- Oil leaks around the steering gear housing: Worn seals or a cracked gear body can cause hydraulic fluid seepage, often visible as drips under the vehicle. This is a common long-tail search query for “ZF steering gear oil leak repair.”
- Steering wheel free play or delayed response: Excessive wear on the gear teeth or bearing surfaces leads to a noticeable lag between steering input and wheel movement, often described as “loose steering” in WG100 transmissions.
- Grinding or knocking noises during turns: Damaged gear teeth or a failing 0634309122: SHAFT SEAL can produce metallic sounds, indicating imminent failure of the steering gear assembly.
- Intermittent gear slipping under load: When the steering gear cannot maintain engagement, operators may experience sudden loss of steering assist, especially during low-speed maneuvers.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0501.216.150 |
| Material | Hardened alloy steel (case-hardened) |
| Weight | 2.4 kg (5.3 lbs) |
| Outer Diameter | 85 mm |
| Shaft Length | 120 mm |
| Tooth Count | 18 spline |
| OEM Reference | ZF 0501.216.150 |
| Operating Temperature | -40°C to +120°C |
Compatibility
This steering gear is engineered for ZF WG-series transmissions, specifically the WG100, WG130, and WG131 models. It also fits select WG180 and WG200 variants where the steering gear housing uses the same spline pattern and mounting bolt spacing. For proper installation, always pair this part with a new 0634801038: SEALING RING and verify alignment using the 0630000091: SHIM RING to prevent preload issues. Additional shim rings such as 0630000255, 0630000058, 0630000059, and 0630000061 may be required for precise axial clearance adjustment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4699100080 | Basic Gearbox | Main transmission housing containing gear sets |
| 0634309122 | Shaft Seal | Prevents fluid leakage along the steering shaft |
| 0634801038 | Sealing Ring | Static seal between gear housing and cover |
| 0630000091 | Shim Ring | Adjusts axial play in steering gear assembly |
| 0630000255 | Shim Ring | Alternative thickness for fine clearance tuning |
| 0630000058 | Shim Ring | 0.5 mm shim for preload adjustment |
| 0630000059 | Shim Ring | 0.8 mm shim for preload adjustment |
| 0630000061 | Shim Ring | 1.0 mm shim for preload adjustment |
| 0501341241 | Wheel Stud | Secures steering gear to mounting flange |
| 0750117782 | Tapered Roller Bearing | Supports steering shaft radial and axial loads |
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