Overview
The ZF 4699.360.014 Crown Wheel is a critical final-drive component engineered for heavy-duty construction machinery transmissions. This OEM genuine part transfers rotational force from the differential side gears to the axle shafts, enabling torque multiplication and smooth power delivery under extreme loads. Located within the differential housing assembly, the crown wheel meshes directly with the pinion gear to convert driveline rotation into wheel traction. The SKU 4699.360.014 is precision-machined to ZF’s exacting tolerances, ensuring minimal backlash and optimal gear contact patterns. When paired with a robust 4699101107 HOUSING, this crown wheel maintains structural integrity even during repeated start-stop cycles in excavators and wheel loaders.
Symptoms of Failure
- Whining or howling noise during acceleration: Worn gear teeth on the 4699.360.014 create irregular contact patterns, producing a high-pitched metallic sound that intensifies under load.
- Vibration in the driveline at low speeds: Excessive backlash from a damaged crown wheel causes rhythmic shuddering, often misdiagnosed as wheel bearing issues.
- Metal debris in transmission oil: Flaking or pitting on the crown wheel’s tooth flanks contaminates the lubricant, visible as glitter-like particles during oil changes.
- Intermittent loss of traction: A cracked or chipped crown wheel can cause sudden slippage, particularly when reversing or climbing grades.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4699.360.014 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Outer Diameter | 360 mm |
| Tooth Count | 41 (estimated) |
| Weight | 8.7 kg (19.2 lbs) |
| OEM Reference | ZF 4699.360.014 |
| Hardness | 58-62 HRC (case depth 1.2 mm) |
Compatibility
This crown wheel is designed for ZF’s WG-series powershift transmissions commonly used in construction machinery. It directly fits the following models: WG180, WG200, WG210, and WG250. These transmissions are found in articulated dump trucks, crawler dozers, and telescopic handlers. For proper installation, always replace the 0634303936 O-RING and inspect the 4699301191 HOUSING for wear. The 4699301041 COVER must be torqued to factory specifications to prevent lubricant contamination.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4699101107 | HOUSING | Encloses differential and supports crown wheel alignment |
| 4699301191 | HOUSING | Secondary housing for planetary gear set |
| 4699301041 | COVER | Seals differential assembly and retains lubricant |
| 0634303936 | O-RING | Prevents oil leakage between housing and cover |
| 0630513203 | SNAP RING | Secures crown wheel on differential carrier |
| 0750110302 | SHAFT SEAL | Prevents fluid ingress at axle output |
| 0630513073 | SNAP RING | Retains bearing on pinion shaft |
| 0501319149 | SCREW PLUG | Seals fill/drain ports in housing |
| 0636302022 | SCREW PLUG | Magnetic plug for ferrous debris collection |
| 0634801038 | SEALING RING | Provides static seal under plug heads |
