Overview
The ZF 0730.301.869 SNAP RING is a precision-engineered retaining component designed for the WG200 and WG92 transmission series. This OEM genuine part secures internal assemblies within the gearbox, preventing axial movement of shafts and gears under high torque loads. As a critical locking element, it ensures proper alignment of the TRANSMISSION HOUSING and related drivetrain components. The SKU 0730.301.869 is manufactured to exact ZF tolerances, guaranteeing a secure fit in the snap ring groove during rebuilds or repairs.
Symptoms of Failure
- Transmission oil leaks at housing joints: A worn or deformed snap ring can allow the HOUSING to shift, breaking seal integrity and causing fluid seepage.
- Gear slipping under load: When the snap ring loses tension, shafts can drift axially, leading to incomplete gear engagement and intermittent power loss.
- Unusual metallic rattling from the bell housing: A loose snap ring permits internal components to vibrate against the TRANSMISSION HOUSING, creating audible noise during acceleration or deceleration.
- Difficulty engaging range selector positions: Axial play caused by a failed snap ring can misalign the RANGE SELECTOR mechanism, resulting in hard shifting or neutral lockout.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0730.301.869 |
| Material | Spring steel (C67S or equivalent) |
| Inner Diameter | ~85 mm (estimated) |
| Outer Diameter | ~95 mm (estimated) |
| Thickness | ~2.5 mm (estimated) |
| Weight | ~18 grams |
| OEM Reference | ZF 0730.301.869 |
| Surface Finish | Phosphate coated (corrosion resistant) |
Compatibility
This snap ring is engineered for ZF WG-series transmissions, specifically the WG200, WG92, and WG90 models. It also fits the WG94 and WG98 series due to shared housing dimensions. The part works in conjunction with the PERIPHERALS assembly and the RANGE SELECTOR unit. Always verify groove width and shaft diameter against your transmission’s service manual before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4660198001 | PERIPHERALS | External control module for transmission hydraulics |
| 0501209818 | RANGE SELECTOR | Shift mechanism for high/low range engagement |
| 4660101011 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4660301018 | HOUSING | Secondary housing for clutch pack assembly |
| 0631306174 | CYLINDRICAL PIN | Alignment dowel for housing positioning |
| 0769123894 | TYPE PLATE | Identification tag with transmission serial number |
| 4660221012 | SUCTION TUBE | Oil pickup line from pan to pump |
| 0634100317 | O-RING | Seal for hydraulic circuit connections |
| 0636103273 | CAP SCREW | Fastener for housing bolt holes |
| 0750100022 | SCREW PLUG | Threaded seal for oil gallery access ports |
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