Overview
The ZF 3052.301.025 THREADED BUSH is a precision-engineered OEM genuine component specifically designed for the WG65 transmission series, as well as the WG 150, WG 200, and WG 201 series. This threaded bushing serves as a critical interface point within the transmission housing assembly, providing a durable, wear-resistant threaded bore for securing mating components such as the 4616101066: TRANSMISSION HOUSING and associated fasteners. Manufactured to ZF’s exacting tolerances, the SKU 3052.301.025 ensures proper alignment and load distribution, preventing stress concentrations that could lead to premature failure of the surrounding structure. Without this bushing, the integrity of the threaded connection is compromised, making it an essential element for maintaining transmission assembly stability.
Symptoms of Failure
When the ZF 3052.301.025 THREADED BUSH begins to wear or strip, operators will notice several distinct failure modes. First, persistent oil seepage around the bushing bore is a common indicator, as degraded threads allow lubricant to bypass the seal. Second, gear engagement hesitation or slipping can occur if the bushing loosens, altering the preload on the 0636011118: HEXAGON SCREW that secures the housing. Third, audible rattling or vibration from the transmission casing during operation signals that the bushing has lost its clamping force. Finally, difficulty in torquing fasteners to specification during maintenance is a clear sign of thread galling or deformation within the bushing.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number (SKU) | 3052.301.025 |
| Material | High-strength steel, zinc-plated |
| Thread Type | Metric fine pitch (M12 x 1.5 estimated) |
| Overall Length | 25 mm |
| Outer Diameter | 18 mm |
| Weight | 0.04 kg |
| OEM Reference | ZF 3052.301.025 |
| Hardness Rating | HRC 28-32 |
Compatibility
This threaded bushing is a direct fit for the following ZF transmission models: WG65 Series, WG 150 Series, WG 200 Series, and WG 201 Series. It is also commonly used in the WG180 and WG190 variants where the same housing interface is employed. The bushing interfaces directly with the 4616301307: HOUSING and 4616301309: HOUSING components, ensuring a secure mounting point for the transmission assembly. Always verify the thread pitch and depth against your specific housing before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616101066 | TRANSMISSION HOUSING | Main structural casing for gear sets |
| 0636011118 | HEXAGON SCREW | Fastens housing to bushing |
| 4616301307 | HOUSING | Secondary housing cover |
| 4616301309 | HOUSING | Alternate housing variant |
| 0636011038 | HEXAGON SCREW | Mounting bolt for housing |
| 0636016015 | HEXAGON SCREW | High-torque fastener |
| 0631306085 | CYLINDRICAL PIN | Alignment dowel for housing |
| 0634313118 | O-RING | Seals bushing interface |
| 0636304019 | SCREW PLUG | Closes unused threaded ports |
| 0634801152 | SEALING RING | Prevents fluid leakage |
