Overview
The ZF 4660.272.017 COUPLING is a critical driveline component engineered specifically for the WG 92 and WG 98 transmission series. This OEM genuine part serves as the mechanical interface that transfers rotational torque between the transmission output shaft and the connected driveline, ensuring smooth power delivery under heavy-duty industrial loads. Positioned within the rear housing assembly, the coupling absorbs torsional vibrations and maintains precise alignment during operation. The SKU 4660.272.017 is manufactured to ZF’s exacting tolerances, guaranteeing a direct fit and long service life in demanding applications such as construction, mining, and material handling equipment.
Symptoms of Failure
When the ZF 4660.272.017 coupling begins to wear, operators may notice specific performance issues. Transmission gear slipping under load is a common indicator, as the coupling loses its ability to maintain positive engagement. Another frequent symptom is abnormal vibration or shuddering during acceleration, which often intensifies at higher torque demands. Oil leaks near the output flange area can also occur if the coupling’s sealing surface becomes compromised. Finally, intermittent loss of power transfer—where the engine revs but the vehicle fails to move—signals that the coupling requires immediate replacement to prevent secondary damage to the 4660101023: TRANSMISSION HOUSING.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4660.272.017 |
| Material | Hardened alloy steel with corrosion-resistant coating |
| Outer Diameter | 142 mm |
| Inner Diameter | 65 mm |
| Overall Length | 98 mm |
| Weight | 1.85 kg |
| OEM Reference | ZF 4660.272.017 |
| Torque Capacity | 1,200 Nm |
| Operating Temperature | -40°C to +120°C |
Compatibility
This coupling is designed for use in ZF WG 92 and WG 98 series transmissions, which are commonly found in off-highway vehicles and industrial machinery. Compatible models include the WG92, WG98, WG180, and WG200 transmissions. It also fits select variants of the WG120 and WG150 series when used with the appropriate 4660301058: HOUSING assembly. Always verify your transmission’s serial number against the OEM parts catalog to ensure correct fitment. The coupling works in conjunction with the 0631306174: CYLINDRICAL PIN for alignment and the 0750100022: SCREW PLUG for sealing the hydraulic circuit.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4660101023 | TRANSMISSION HOUSING | Encloses and supports internal gear sets and shafts |
| 4660301058 | HOUSING | Provides mounting surface for coupling and output flange |
| 0631306174 | CYLINDRICAL PIN | Ensures precise alignment between coupling and shaft |
| 0750100022 | SCREW PLUG | Seals hydraulic ports to prevent fluid loss |
| 4660301009 | BRACKET | Secures auxiliary components to the transmission |
| 4660221039 | TUBE | Routes lubricating oil to the coupling area |
| 0636103274 | CAP SCREW | Fastens housing and coupling assembly together |
| 0634306185 | O-RING | Provides static seal between mating surfaces |
| 4660221041 | TUBE | Secondary oil feed line for cooling |
| 4660221040 | TUBE | Return oil line from coupling lubrication circuit |
