Overview
The ZF 4657.231.038 OIL LEVEL TUBE is a precision-engineered component designed specifically for the WG210 transmission series. This genuine OEM part serves as the primary conduit for monitoring and maintaining proper fluid levels within the transmission sump. Located on the side of the main housing, the tube integrates seamlessly with the HOUS.FRONT SECT (4657201161) to ensure accurate oil level readings during service intervals. The SKU 4657.231.038 is manufactured to ZF’s exacting tolerances, providing a leak-proof seal that prevents contamination and maintains hydraulic pressure integrity.
Symptoms of Failure
- Visible oil leaks around the transmission housing: A worn or cracked oil level tube often causes fluid to seep from the connection point, leading to low oil levels and potential gear slipping.
- Inaccurate dipstick readings: When the tube becomes distorted or clogged, the oil level indicator may show false readings, causing overfilling or underfilling of the transmission.
- Transmission overheating: A compromised tube can allow air ingress, reducing oil circulation and leading to elevated operating temperatures.
- Hard shifting or delayed engagement: Insufficient oil due to tube failure results in inadequate hydraulic pressure, causing sluggish gear changes.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (SKU) | 4657.231.038 |
| Material | Steel with corrosion-resistant coating |
| Length | Approx. 320 mm |
| Outer Diameter | 12 mm |
| Weight | 0.15 kg |
| OEM Reference | ZF 4657.231.038 |
| Seal Type | Integrated O-ring groove |
Compatibility
This genuine ZF oil level tube is primarily designed for the WG210 transmission series. Based on its design and mounting interface, it is also compatible with the WG180, WG200, and WG250 series transmissions used in heavy-duty commercial vehicles and industrial machinery. Always verify fitment with your specific transmission model before installation. For proper assembly, ensure the 螺栓 (0636115293) is torqued to specification, and replace the O-RING (0634313603) during service. The CYLINDRICAL PIN (0631306816) aligns the tube with the housing for a secure fit.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657201161 | HOUS.FRONT SECT | Front housing section for transmission assembly |
| 0636115293 | 螺栓 | Fastener for securing components |
| 0634313603 | O-RING | Seal for preventing fluid leaks |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for precise positioning |
| 0636100801 | CAP SCREW | Threaded fastener for cover plates |
| 4656301148 | FIXING PLATE | Bracket for securing transmission parts |
| 4657301032 | SCREEN SHEET | Filter screen for oil debris |
| 4657301033 | SCREEN SHEET | Secondary filter screen |
| 0636100803 | CAP SCREW | Alternate fastener for specific applications |
| 4681301040 | OIL FEED.HOUSG. | Oil supply housing for lubrication |
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