Overview
The ZF 4143.103.022 OUTPUT is a critical OEM genuine component engineered for the HL 100 and HL 270 series transmission families. This part functions as the primary output flange or hub assembly, transferring rotational torque from the transmission’s final planetary gearset directly to the driveline. Positioned at the rear of the main housing, it interfaces with the output shaft seal and bearing assembly to ensure precise alignment and minimal power loss. The SKU 4143.103.022 is manufactured to ZF’s exacting tolerances, guaranteeing a direct fit and long service life in heavy-duty industrial applications.
Symptoms of Failure
When the ZF 4143.103.022 OUTPUT begins to wear, operators may notice several distinct failure indicators. Oil leakage at the rear of the transmission is a common symptom, often caused by a damaged output flange surface that compromises the seal. Gear slipping under load can occur if the output hub’s splines become worn, reducing torque transfer efficiency. Unusual vibration or driveline shudder during acceleration typically points to bearing wear or misalignment within the output assembly. Finally, metal debris in the transmission fluid may signal that the output component is shedding material, requiring immediate inspection and replacement.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4143.103.022 |
| OEM Reference | ZF 4143.103.022 |
| Material | High-strength alloy steel, induction-hardened |
| Weight | Approx. 4.2 kg (9.3 lbs) |
| Outer Diameter | 185 mm |
| Overall Length | 95 mm |
| Spline Count | 24 internal splines |
| Surface Finish | Black oxide coated |
Compatibility
This output component is designed for use in ZF’s HL 100 and HL 270 series transmissions, which are commonly found in forklifts, telehandlers, and industrial loaders. Based on its flange design and spline configuration, the 4143.103.022 also fits select models within the WG180 and WG200 series, as well as earlier WG120 variants. Always verify your transmission’s serial number against ZF’s application guide before installation. For a complete rebuild, pair this output with the 4143101016: HOUSING and the 4143301039: HOUSING to ensure proper alignment of internal components.
During installation, use a new 0501318136: GASKET to prevent fluid seepage, and secure the assembly with 0636101084: CAP SCREW fasteners torqued to factory specifications. These parts work in concert to maintain the structural integrity of the output section.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4143101016 | HOUSING | Main transmission housing for HL series |
| 4143301039 | HOUSING | Rear housing adapter for output assembly |
| 0501318136 | GASKET | Seals housing-to-output flange interface |
| 0636101084 | CAP SCREW | Fastens output flange to housing |
| 0750108044 | PLUG | Drain or fill port plug |
| 0636302014 | SCREW PLUG | Threaded plug for oil passages |
| 0634801057 | SEALING RING | Copper sealing ring for plugs |
| 0730365092 | TYPE PLATE | Identification plate for transmission |
| 4143201019 | VALVE INSERT | Hydraulic valve insert for clutch control |
| 0634306198 | O-RING | Seals valve insert and housing joints |
