Overview
The ZF 4108.338.014 RETAINING CLIP is a precision-engineered fastening component designed to secure internal transmission assemblies within ZF construction machinery gearboxes. This OEM genuine part (SKU: 4108.338.014) functions as a critical axial lock, preventing shaft-mounted components such as bearings, gears, or spacers from shifting position under high torque loads. Positioned inside the transmission housing, it interfaces directly with the 4108101057 HOUSING and the 4108201177 HOUSING to maintain precise gear alignment. Without this retaining clip, the entire drivetrain assembly risks catastrophic misalignment, making it indispensable for maintaining operational integrity in heavy-duty construction equipment.
Symptoms of Failure
- Transmission oil leaks near the bearing cover: A worn or broken retaining clip allows the 4108301304 BEARING COVER to loosen, creating gaps that bypass seals and cause fluid seepage.
- Intermittent gear slipping under load: When the clip loses tension, shafts can drift axially, causing partial disengagement of gear teeth during operation.
- Unusual metallic rattling from the transmission case: A failed clip permits loose components to vibrate against the housing, producing distinct knocking sounds at idle or low RPM.
- Premature bearing wear: Without proper retention, bearings experience uneven axial loading, leading to rapid degradation and eventual seizure.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4108.338.014 |
| Material | Spring steel (C67S or equivalent), zinc-plated |
| Width (mm) | 12.5 |
| Thickness (mm) | 2.0 |
| Inner Diameter (mm) | 38.0 |
| Weight (g) | 8.5 |
| OEM Reference | ZF 4108.338.014 |
| Hardness (HRC) | 44–48 |
Compatibility
This retaining clip is engineered for ZF powershift transmissions commonly deployed in construction machinery, including wheel loaders, graders, and dozers. It is a direct fit for the following ZF models: WG180, WG200, WG210, and WG250. The clip also integrates with the 0636302056 SCREW PLUG used to seal access ports in these gearboxes. Always verify your transmission serial number before ordering to ensure correct fitment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4108101057 | HOUSING | Main transmission casing for gear and shaft support |
| 4108201177 | HOUSING | Secondary housing for clutch pack assembly |
| 0636302056 | SCREW PLUG | Seals hydraulic fluid passages in the valve body |
| 4108301304 | BEARING COVER | Encloses and preloads output shaft bearings |
| 4108306173 | GASKET | Provides leak-proof seal between housing interfaces |
| 0750110040 | SHAFT SEAL | Prevents oil egress along rotating shafts |
| 6053108155 | CONTROL COVER | Houses shift solenoid and pressure regulation valves |
| 6053308348 | CONTROL COVER | Alternate cover for electronic control module |
| 0636010188 | HEXAGON SCREW | M8x20 bolt for securing bearing covers |
| 0636010192 | HEXAGON SCREW | M10x25 bolt for transmission housing flanges |
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