Overview
The ZF 4644.152.124 COUPLING is a critical driveline component engineered specifically for the WG 180 and WG 200 series transmissions. This OEM genuine part acts as the mechanical interface between the engine output and the transmission input shaft, ensuring precise torque transfer and dampening torsional vibrations. The SKU 4644.152.124 is manufactured to ZF’s exacting tolerances, guaranteeing a direct fit and long service life within the TRANSMISSION HOUSING assembly. Without this coupling, the transmission cannot engage power from the engine, making it a non-negotiable element for operational uptime.
Symptoms of Failure
When the ZF 4644.152.124 coupling begins to degrade, operators will notice distinct performance issues. Look for these specific failure symptoms to diagnose a worn coupling:
- Excessive driveline backlash or “clunking” during gear engagement, especially when shifting from neutral to drive.
- Vibration at low RPM that intensifies under load, often misdiagnosed as a failing engine mount.
- Metallic debris in the transmission oil filter, indicating material wear from the coupling splines or damping elements.
- Intermittent power loss or “slipping” sensation during acceleration, caused by worn coupling teeth failing to maintain positive engagement.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (SKU) | 4644.152.124 |
| Material | High-tensile steel with nitrile damping ring |
| Outer Diameter | 180 mm (estimated) |
| Inner Spline Diameter | 45 mm (estimated) |
| Weight | 2.8 kg (estimated) |
| OEM Reference | ZF 4644.152.124 |
| Torque Capacity | Up to 1,200 Nm (estimated) |
Compatibility
This coupling is specifically designed for the ZF WG 180 and WG 200 transmission series. It is a direct replacement for units found in construction equipment, agricultural tractors, and material handlers. The part interfaces directly with the TRANSMISSION HOUSING and is secured using the GROOVED STUD fasteners. Always verify your transmission model number against the TYPE PLATE before ordering to ensure correct fitment.
Related Components
For a complete overhaul or preventive maintenance, consider these associated parts that work in conjunction with the 4644.152.124 coupling:
| Part Number | Name | Function |
|---|---|---|
| 4644101216 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4644301223 | TRANSMISSION HOUSING | Alternative housing variant for WG series |
| 0730365067 | TYPE PLATE | Identification plate with model/serial data |
| 0631311009 | GROOVED STUD | Fastener for coupling-to-housing mounting |
| 4644303060 | COVER PLATE | Seals the coupling access port |
| 4644303061 | COVER PLATE | Alternate cover plate variant |
| 0634306525 | O-RING | Seal for coupling housing interface |
| 0636305026 | SCREW PLUG | Drain/fill port plug for housing |
| 4644301279 | SCREEN SHEET | Filter screen for oil return circuit |
| 4644301088 | SEALING CAP | Protective cap for unused ports |
