Overview
The ZF 4699.171.003 WHEEL is a critical load-bearing component within the final drive assembly of heavy-duty construction machinery transmissions. This OEM genuine part functions as the primary interface between the planetary gear set and the axle shaft, ensuring precise torque transfer and rotational stability under extreme loads. Positioned directly within the differential housing, the SKU 4699.171.003 works in concert with the 4699101093: HOUSING and the 4699301175: HOUSING to maintain proper gear alignment. This wheel component is machined from high-strength alloy steel to withstand the cyclic stresses common in excavators and wheel loaders.
Symptoms of Failure
- Intermittent gear slipping under load – When the 4699.171.003 wheel wears at its spline interface, operators may notice sudden loss of drive power during digging or pushing operations, particularly in ZF WG200 transmissions.
- Metallic grinding noises from the axle housing – A worn wheel surface contacting the 4699301041: COVER produces a distinct high-pitched grinding sound that intensifies with vehicle speed.
- Contaminated transmission fluid with metallic particles – Advanced wear of the wheel’s bearing race surface releases fine steel debris into the oil, often visible during routine fluid changes.
- Excessive backlash in the driveline – Operators may feel a pronounced clunk when shifting between forward and reverse, indicating the wheel has lost its tight fit within the planetary carrier.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4699.171.003 |
| Material | Alloy Steel (SAE 8620H) |
| Outer Diameter | 185 mm |
| Inner Diameter (Spline) | 65 mm |
| Width | 42 mm |
| Weight | 3.8 kg |
| OEM Reference | ZF 4699.171.003 |
| Heat Treatment | Carburized & Quenched |
| Surface Hardness | 58-62 HRC |
Compatibility
This genuine ZF wheel is engineered for use in the following transmission families: WG180, WG200, and WG211. It is commonly found in construction machinery such as Caterpillar, Volvo, and Liebherr wheel loaders and dozers that utilize ZF drivelines. The 4699.171.003 also fits select Ecomat and Ergopower series transmissions where the final drive wheel shares identical spline geometry. Always verify the 0634303936: O-RING seal condition when replacing this wheel to prevent fluid ingress.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4699101093 | HOUSING | Encloses the wheel assembly and supports bearing loads |
| 4699301175 | HOUSING | Secondary housing for planetary gear retention |
| 4699301041 | COVER | Seals the wheel cavity and prevents contamination |
| 0634303936 | O-RING | Provides static seal between housing and cover |
| 0630513203 | SNAP RING | Retains the wheel on the axle shaft |
| 0750110302 | SHAFT SEAL | Dynamic seal preventing oil leakage at the wheel hub |
| 0630513073 | SNAP RING | Secures bearing assembly within the housing |
| 0501319149 | SCREW PLUG | Closes oil fill/drain ports in the housing |
| 0636302022 | SCREW PLUG | Magnetic plug for debris collection in the sump |
| 0634801038 | SEALING RING | Copper washer for plug sealing under high torque |
