Overview
The ZF 4616.301.243 BUSH is a precision-engineered wear component designed for the WG65 series of heavy-duty transmissions. This OEM genuine part functions as a critical bearing surface, reducing friction between rotating shafts and stationary housings within the gearbox. Specifically, it supports the output shaft assembly, ensuring smooth torque transfer and maintaining precise alignment under high-load conditions. The SKU 4616.301.243 is manufactured to ZF’s exacting tolerances, guaranteeing a direct fit and long service life. When installed alongside the 4616105413: OUTPUT and the 4616203017: OUTPUT FLANGE, this bushing forms the backbone of the driveline connection, preventing metal-on-metal contact that would otherwise lead to premature failure.
Symptoms of Failure
When the 4616.301.243 BUSH wears beyond its service limits, operators will notice distinct performance degradation. Watch for these specific failure indicators:
- Output shaft oil leaks at the housing interface — A worn bushing allows excessive radial movement, breaking the seal between the shaft and the 4616101117: TRANSMISSION HOUSING, leading to visible fluid seepage.
- Low-frequency vibration during gear engagement — As the bushing clearance increases, the output shaft wobbles, causing a distinct shudder that is felt through the chassis during acceleration or deceleration.
- Metallic grinding noise from the rear of the transmission — When the bushing material erodes, steel components contact directly, producing a high-pitched scraping sound that worsens under load.
- Premature wear of the output flange splines — Misalignment from a degraded bushing accelerates wear on the 4616203017: OUTPUT FLANGE, often requiring simultaneous replacement.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4616.301.243 |
| Material | Bronze alloy with PTFE lining |
| Inner Diameter | 65 mm |
| Outer Diameter | 75 mm |
| Length | 30 mm |
| Weight | 0.18 kg |
| OEM Reference | ZF 4616.301.243 |
| Hardness | HRB 80-90 |
Compatibility
This bushing is engineered for the ZF WG65 series of powershift transmissions. Based on its dimensional profile and application, it is compatible with the following ZF models: WG180, WG200, WG210, and WG250. It is also used in select WG65 variants found in construction equipment such as wheel loaders and telehandlers. Always verify the existing part number before ordering, as the 0636011038: HEXAGON SCREW is often replaced concurrently during bushing service to ensure proper clamping force.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616105413 | OUTPUT | Transfers torque from transmission to driveline |
| 4616203017 | OUTPUT FLANGE | Connects output shaft to driveshaft |
| 4616101117 | TRANSMISSION HOUSING | Encloses and supports internal components |
| 0636011038 | HEXAGON SCREW | Secures housing and flange assemblies |
| 0636016015 | HEXAGON SCREW | Fastens bearing retainers and covers |
| 0631306085 | CYLINDRICAL PIN | Aligns housing halves during assembly |
| 0634313118 | O-RING | Seals oil passages between components |
| 0732611049 | FILTER INSERT | Removes contaminants from hydraulic fluid |
| 0634303718 | O-RING | Prevents external oil leaks at joints |
| 0636610082 | STUD | Provides threaded mounting points for covers |
