Overview
The ZF 4699.303.195 WHEEL STUD is a critical OEM genuine fastening component designed for heavy-duty construction machinery transmissions. This stud secures the wheel hub assembly to the transmission output flange, ensuring precise torque transfer and axial retention under extreme loads. As part of the final drive system, the 4699.303.195 interfaces directly with the 4699101079: HOUSING and the 0501329881: HOUSING COVER, creating a sealed, rigid connection. The SKU 4699.303.195 is manufactured to ZF’s exacting tolerances, making it a direct replacement for worn or damaged studs in off-highway equipment.
Symptoms of Failure
When the ZF 4699.303.195 wheel stud deteriorates, operators may encounter these specific failure modes:
- Wheel wobble or vibration at low speeds — A loose or sheared stud causes uneven hub rotation, often misdiagnosed as bearing wear.
- Transmission oil seepage near the hub flange — A compromised stud can distort the 0634306309: O-RING seal, leading to gradual fluid loss.
- Clunking noise during acceleration or deceleration — Excessive play between the stud and housing bore creates audible impact sounds.
- Uneven tire wear patterns — Misalignment caused by a failing stud translates to irregular contact patches on drive tires.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4699.303.195 |
| Material | High-tensile alloy steel, heat-treated |
| Thread Size | M20 x 1.5 (estimated) |
| Overall Length | 95 mm (estimated) |
| Thread Length | 45 mm (estimated) |
| Weight | 0.28 kg (estimated) |
| OEM Reference | ZF 4699.303.195 |
| Surface Finish | Zinc-plated, corrosion-resistant |
Compatibility
This wheel stud is engineered for ZF powershift transmissions commonly found in construction loaders and graders. Based on its design and thread pattern, the 4699.303.195 is compatible with the following ZF transmission models:
- WG180 — Used in medium wheel loaders
- WG200 — Applied in heavy-duty graders
- WG210 — Found in compact excavator drivelines
- 4WG200 — Four-speed variant for articulated trucks
For proper installation, always replace the 0634306309: O-RING and inspect the 0637885612: BREATHER for contamination. The stud works in conjunction with the 4699102158: INPUT shaft assembly and the 4699302299: DRIVE PINION to maintain driveline integrity.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4699101079 | HOUSING | Encloses the final drive gear set |
| 0501329881 | HOUSING COVER | Seals the housing assembly |
| 0634306309 | O-RING | Prevents fluid leakage at joints |
| 0637885612 | BREATHER | Equalizes internal pressure |
| 0501319149 | SCREW PLUG | Closes oil fill ports |
| 0636302022 | SCREW PLUG | Seals drain passages |
| 0634801038 | SEALING RING | Provides leak-proof connection |
| 0730365801 | TYPE PLATE | Identifies transmission model |
| 4699102158 | INPUT | Transfers engine torque |
| 4699302299 | DRIVE PINION | Engages ring gear for final reduction |
