Overview
The ZF 4642.351.041 AXLE is a precision-machined internal component specifically engineered for the WG 150 series transmission. This genuine OEM part functions as a critical load-bearing shaft within the planetary gear set, ensuring correct torque distribution and rotational alignment during operation. When installed correctly, the 4642.351.041 axle supports the gear train’s stability, reducing vibration and wear across the drivetrain. As a factory-spec replacement, this SKU guarantees exact fitment and metallurgical consistency required for heavy-duty industrial applications.
Symptoms of Failure
- Intermittent gear slipping under load: A worn 4642.351.041 axle can cause the planetary gears to lose proper mesh, resulting in sudden power loss during acceleration or uphill operation.
- Metallic grinding noise from the differential area: When the axle surface becomes scored or pitted, you may hear a distinct grinding sound, especially when the transmission shifts between forward and reverse.
- Oil contamination with metallic debris: Fatigue fractures on the axle shaft generate fine steel particles that circulate through the lubricant, visible during routine oil changes as a glittery sludge.
- Excessive end-play in the output shaft: A degraded axle can allow axial movement beyond factory tolerances, causing driveline shudder and premature wear on adjacent bearings.
Technical Specifications
| Specification | Value |
|---|---|
| OEM Part Number | 4642.351.041 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Overall Length | 187 mm (estimated) |
| Outer Diameter | 42 mm (bearing journal) |
| Weight | 1.85 kg (approx.) |
| Surface Hardness | 58-62 HRC |
| OEM Reference | ZF 4642.351.041 |
Compatibility
This axle is designed primarily for the ZF WG 150 transmission series. It is also compatible with the WG 180 and WG 200 models where the planetary carrier assembly shares identical axle bore dimensions. For WG 250 and WG 300 variants, verify the carrier spline count before installation. The 4642.351.041 axle directly interfaces with the 4642101109 TRANSMISSION HOUSING and the 4642301205 TRANSMISSION HOUSING to maintain proper gear alignment. Always pair this axle with a new 0730365125 TYPE PLATE for accurate identification, and secure it using the 0631311009 GROOVED STUD to prevent rotational loosening.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4642101109 | TRANSMISSION HOUSING | Encloses and supports the axle assembly |
| 4642301205 | TRANSMISSION HOUSING | Alternate housing variant for WG series |
| 0730365125 | TYPE PLATE | Identification tag for transmission model |
| 0631311009 | GROOVED STUD | Secures axle to carrier housing |
| 4642301168 | SCREEN SHEET | Filters debris from lubricant flow |
| 4642301169 | SCREEN SHEET | Fine-mesh filter for oil circuit |
| 0636100621 | HEXAGON SCREW | Fastener for housing cover plates |
| 4642301186 | SCREEN SHEET | Secondary filtration screen |
| 4644106085 | SHIFT SYSTEM | Controls gear engagement sequence |
| 4642306050 | COVER PLATE | Seals the axle access port |
