Overview
The ZF 4644.152.130 COUPLING is a precision-engineered component designed for the WG 180 and WG 200 transmission series. This OEM genuine part serves as the critical link between the engine output and the transmission input shaft, ensuring smooth torque transfer and driveline alignment. Located within the bell housing assembly, the coupling absorbs torsional vibrations and compensates for minor misalignment during operation. The SKU 4644.152.130 is manufactured to ZF’s exacting tolerances, making it essential for maintaining the structural integrity of the gearbox. When installed alongside the TRANSMISSION HOUSING and HOUSING, this coupling ensures reliable power delivery in heavy-duty industrial applications.
Symptoms of Failure
- Transmission oil leaks near the bell housing: A worn coupling can cause seal failure, leading to fluid seepage around the joint between the engine and transmission.
- Vibration or shuddering during gear engagement: Deteriorated coupling material results in uneven torque transfer, producing noticeable driveline shudder when shifting.
- Metallic grinding noise from the transmission front: Excessive wear on the coupling splines or hub creates a distinct grinding sound, especially under load.
- Difficulty engaging gears or gear slipping: Misalignment caused by a failing coupling prevents proper clutch engagement, leading to delayed or incomplete gear shifts.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4644.152.130 |
| Material | High-strength alloy steel with nitrided surface |
| Weight | 2.8 kg (6.2 lbs) |
| Outer Diameter | 152 mm |
| Inner Diameter | 130 mm |
| OEM Reference | ZF 4644.152.130 |
| Torque Capacity | 1,200 Nm |
Compatibility
This coupling is specifically engineered for the ZF WG 180 and WG 200 transmission families, including the WG 181 Series. It is also compatible with select WG 160 variants that share the same bell housing interface. The part integrates directly with the THREADED BUSH and TYPE PLATE to ensure correct installation orientation. For applications requiring additional driveline stability, pairing this coupling with the GROOVED STUD and COVER PLATE is recommended. Always verify your transmission model against the OEM parts catalog before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4644101047 | TRANSMISSION HOUSING | Encloses and supports internal gear train |
| 4644301380 | HOUSING | Provides mounting surface for auxiliary components |
| 4644301189 | THREADED BUSH | Secures coupling alignment during assembly |
| 0730365067 | TYPE PLATE | Identifies transmission model and serial number |
| 0631311009 | GROOVED STUD | Positions coupling on input shaft |
| 4644301161 | COVER PLATE | Protects coupling from debris ingress |
| 0636100621 | HEXAGON SCREW | Fastens coupling to flywheel |
| 0631610020 | SET SCREW | Locks coupling hub in position |
| 0634801098 | SEALING RING | Prevents oil leakage at coupling joint |
| 4644301117 | FIXING PLATE | Anchors coupling to transmission housing |
