Overview
The ZF 4657.231.001 OIL LEVEL TUBE is a precision-engineered component designed specifically for the WG190 and WG210 series transmissions. This genuine OEM part serves as the critical conduit for accurate fluid level measurement, ensuring the transmission maintains proper lubrication and hydraulic pressure. Located on the exterior of the transmission housing, the oil level tube connects directly to the sump area, allowing technicians to verify oil levels quickly and reliably. The SKU 4657.231.001 is manufactured to ZF’s exacting tolerances, guaranteeing a perfect seal and consistent performance in heavy-duty industrial applications. This tube works in conjunction with the 4657101031: TRANSMISSION HOUSING and the 4657201027: HOUS.FRONT SECT to form a sealed fluid management system.
Symptoms of Failure
- Transmission fluid leaks around the dipstick area: A worn or cracked oil level tube often causes visible oil seepage near the fill port, leading to low fluid levels and potential gear damage.
- Inaccurate oil level readings: When the tube becomes distorted or clogged, the dipstick may show false readings, causing overfilling or underfilling of the transmission.
- Gear slipping under load: Insufficient lubrication due to a compromised tube can result in intermittent gear slippage, especially during heavy-duty operation.
- Burning smell from transmission: A failing oil level tube can allow debris into the fluid, causing overheating and a distinct burnt odor during operation.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4657.231.001 |
| Material | Reinforced Nylon / Aluminum Alloy |
| Length | 320 mm (approx.) |
| Outer Diameter | 18 mm |
| Weight | 0.15 kg |
| OEM Reference | ZF 4657.231.001 |
| Seal Type | Integrated O-ring |
Compatibility
This genuine ZF oil level tube is engineered for the WG190 and WG210 transmission series. It is also compatible with the closely related WG180 and WG200 models, which share the same fluid management architecture. The part integrates seamlessly with the 4657201020: HOUSING REAR PART and is secured using the 0631306792: CYLINDRICAL PIN for precise alignment. Always verify your transmission model number before ordering to ensure a perfect fit.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101031 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4657201027 | HOUS.FRONT SECT | Front section of transmission housing |
| 4657201020 | HOUSING REAR PART | Rear section of transmission housing |
| 0631306792 | CYLINDRICAL PIN | Alignment pin for housing sections |
| 0636100801 | CAP SCREW | Fastener for securing components |
| 4656301148 | FIXING PLATE | Mounting plate for oil tube assembly |
| 4657301032 | SCREEN SHEET | Fine mesh filter for fluid intake |
| 4657301033 | SCREEN SHEET | Coarse mesh filter for debris protection |
| 0636100803 | CAP SCREW | Secondary fastener for housing |
| 4681301040 | OIL FEED.HOUSG. | Oil supply housing for lubrication circuit |
Frequently Asked Questions
Q: How do I know if the 4657.231.001 oil level tube is the correct part for my ZF transmission?
A: Verify your transmission model number (WG190 or WG210) stamped on the data plate. This tube is also compatible with WG180 and WG200 series, but always cross-reference your serial number with the OEM specifications.
Q: Can I replace the oil level tube without draining the transmission fluid?
A: It is recommended to drain the fluid to the level below the tube mounting point to avoid spillage. However, a small amount of fluid loss is normal during replacement. Always check the seal integrity after installation.
Q: What is the typical lifespan of this oil level tube in heavy-duty applications?
A: Under normal operating conditions, the ZF 4657.231.001 tube lasts 5-7 years. Exposure to extreme heat, vibration, or chemical contamination can accelerate wear. Inspect the tube annually for cracks or brittleness.
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