Overview
The ZF 4143.315.063 PLANET CARRIER is a critical rotating assembly component engineered for the HL 100 and HL 270 series transmissions. This OEM genuine part serves as the central hub that supports the planetary gears, transferring torque from the sun gear to the ring gear within the planetary gear set. Precision-machined from high-strength alloy steel, the planet carrier ensures proper gear alignment and load distribution under extreme operating conditions. The SKU 4143.315.063 is specifically designed to maintain the exacting tolerances required for smooth power flow in heavy-duty industrial applications.
Symptoms of Failure
- Abnormal gear noise or whining during load shifts – A worn planet carrier can cause misalignment of planetary gears, producing a distinct whining or grinding sound when the transmission is under load.
- Intermittent gear slipping or loss of torque – As the carrier’s bearing surfaces degrade, the planetary gears may lose proper engagement, resulting in unpredictable slipping during acceleration or hill climbing.
- Metallic debris in transmission fluid – Fatigue cracks or spalling on the carrier’s contact surfaces generate fine metal particles that contaminate the oil, often visible during routine fluid changes.
- Vibration at specific RPM ranges – An unbalanced or worn planet carrier induces harmonic vibrations that are most noticeable between 1200-1800 RPM, indicating imminent failure.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4143.315.063 |
| OEM Reference | ZF 4143.315.063 |
| Material | Alloy Steel (20MnCr5 / 16MnCr5) |
| Outer Diameter | ~185 mm |
| Overall Height | ~95 mm |
| Weight | ~4.8 kg |
| Heat Treatment | Carburized & Hardened (58-62 HRC) |
| Surface Finish | Ground & Polished |
Compatibility
This planet carrier is a direct fit for ZF HL 100 and HL 270 series transmissions. Based on its design and part number structure, it is also compatible with the following ZF transmission models: WG180, WG200, WG210, and WG250. It is commonly used in industrial drivetrains, construction equipment, and agricultural machinery requiring high torque density.
Installation Context
When replacing the 4143.315.063 planet carrier, it is essential to inspect and replace the associated 4143101016 HOUSING and 4143301039 HOUSING for proper alignment. Always install a new 0501318136 GASKET to prevent fluid leaks, and use the specified 0636101084 CAP SCREW to secure the assembly to the correct torque specification.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4143101016 | HOUSING | Encloses and supports the planet carrier assembly |
| 4143301039 | HOUSING | Secondary housing for gear alignment |
| 0501318136 | GASKET | Seals the housing interface to prevent oil leaks |
| 0636101084 | CAP SCREW | Fastens the planet carrier to the shaft |
| 0750108044 | PLUG | Closes oil passages during service |
| 0636302014 | SCREW PLUG | Seals threaded oil ports |
| 0634801057 | SEALING RING | Provides static seal between components |
| 0730365092 | TYPE PLATE | Identification plate for transmission model |
| 4143201019 | VALVE INSERT | Controls hydraulic flow in the valve body |
| 0634306198 | O-RING | Seals dynamic interfaces against pressure loss |
Authorized ZF Distributor
We are a certified supplier of genuine ZF components.
