Overview
The ZF 4657.231.022 OIL LEVEL TUBE is a precision-engineered component designed for the WG191 and WG211 transmission series. This genuine OEM part serves as the dedicated conduit for monitoring and maintaining the correct oil level within the transmission sump. Positioned along the side of the main housing, it provides a direct fluid path for accurate dipstick readings, ensuring the hydraulic system operates within its optimal lubrication range. The SKU 4657.231.022 is manufactured to strict ZF tolerances, guaranteeing a leak-free seal and reliable fluid management over extended service intervals.
Symptoms of Failure
When the ZF 4657.231.022 OIL LEVEL TUBE begins to wear or crack, several distinct operational issues arise. Transmission fluid leaks around the tube base or connection point are the most common early indicator, often visible as drips beneath the bell housing. Inaccurate dipstick readings occur when the tube becomes blocked or deformed, leading to overfilling or underfilling of the transmission. Gear slipping or delayed engagement may follow if the fluid level drops too low due to a compromised tube seal. Burning oil smell from the transmission area can also develop as low fluid levels cause excessive heat buildup in the clutch packs.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4657.231.022 |
| Material | Steel with corrosion-resistant coating |
| Overall Length | Approx. 280 mm |
| Tube Diameter | 12 mm (outer) |
| Weight | 0.15 kg |
| OEM Reference | ZF 4657.231.022 |
| Seal Type | Integrated O-ring groove |
Compatibility
This OIL LEVEL TUBE is engineered for the ZF WG191 and WG211 series transmissions. It is also compatible with the WG180, WG200, and WG210 variants where the oil level monitoring system uses a side-mounted tube configuration. The part fits both standard and heavy-duty off-highway applications, including wheel loaders, graders, and material handlers that utilize these ZF power shift transmissions. Always verify your transmission model suffix before installation to ensure proper fitment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657120005 | PRESSURE REGULATOR | Controls hydraulic pressure to clutch packs |
| 0501211384 | VALVE | Directs oil flow for shift timing |
| 0630532183 | INDENTED RING | Secures valve assemblies in bore |
| 4656306145 | PISTON | Actuates clutch engagement |
| 0732042767 | COMPRESSION SPRING | Returns piston to neutral position |
| 0631612064 | SET SCREW | Locks adjustment mechanisms |
| 0631610026 | SET SCREW | Secures cover plates |
| 4657101049 | TRANSMISSION HOUSING | Main structural casing |
| 4657301130 | HOUS.FRONT SECT | Front section of transmission housing |
| 4657301131 | HOUSING REAR PART | Rear section of transmission housing |
Frequently Asked Questions
Q: Can I install the ZF 4657.231.022 OIL LEVEL TUBE without removing the transmission?
A: Yes, in most applications the tube can be replaced while the transmission is in the vehicle. Access the side of the housing after removing any protective shields. Ensure the area is clean to prevent debris from entering the sump.
Q: How often should the oil level tube be inspected?
A: We recommend checking the tube for cracks or corrosion during every transmission oil change, typically every 1,000 operating hours. Replace it immediately if any fluid seepage is noticed around the mounting boss.
Q: Is the 4657.231.022 tube interchangeable with earlier ZF models?
A: This part is specifically designed for the WG191 and WG211 series. While it may physically fit earlier WG180 housings, the dipstick calibration may differ. Always cross-reference your original part number to confirm compatibility.
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Phone: +86 158 2286 3467 |
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