Overview
The ZF 4657.231.027 OIL LEVEL TUBE is a precision-engineered component designed for the WG190 and WG210 series transmissions. This genuine OEM part ensures accurate fluid level monitoring within the transmission sump, preventing both overfilling and underfilling that can lead to premature wear. The tube integrates directly into the main housing assembly, working in conjunction with the 4657101079: TRANSMISSION HOUSING to maintain proper lubrication flow. The SKU 4657.231.027 is machined from corrosion-resistant steel and features a calibrated dipstick interface for reliable oil level readings during routine maintenance.
Symptoms of Failure
- Transmission oil leak at the dipstick tube base: A cracked or corroded oil level tube often causes fluid to seep around the housing connection point, leaving visible puddles under the vehicle.
- Inaccurate oil level readings causing gear slipping: When the tube becomes blocked or deformed, the dipstick cannot seat properly, leading to incorrect fluid levels and eventual clutch pack slippage under load.
- Foaming or aerated transmission fluid: A damaged tube allows air to enter the sump through hairline fractures, creating foam that reduces hydraulic pressure and causes erratic shifting.
- Burning smell from overheated transmission fluid: Insufficient oil level due to a leaking tube forces the transmission to run hotter, accelerating fluid degradation and producing a distinct burnt odor.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4657.231.027 |
| Material | Steel with anti-corrosion coating |
| Overall Length | Approx. 320 mm |
| Tube Outer Diameter | 12.7 mm |
| Weight | 0.18 kg |
| OEM Reference | ZF 4657.231.027 |
| Thread Type | M14 x 1.5 |
Compatibility
This oil level tube is engineered for ZF WG-series transmissions, specifically the WG190 and WG210 models. It also fits the WG180, WG200, and WG220 variants when used with the correct 4657201166: HOUS.FRONT SECT and 4657201169: HOUSING REAR PART. For complete assembly, the tube mounts between the 4657298104: HOUSING REAR SECTION and the main sump. Always verify your transmission model number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101079 | TRANSMISSION HOUSING | Main structural casing for gear sets |
| 4657201166 | HOUS.FRONT SECT | Front section of transmission housing |
| 4657201169 | HOUSING REAR PART | Rear housing section for output shaft |
| 4657298104 | HOUSING REAR SECTION | Rear section for bearing support |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing assembly |
| 0636100801 | CAP SCREW | Fastener for housing sections |
| 4656301148 | FIXING PLATE | Secures oil tube to housing |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil intake |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter |
| 0636100803 | CAP SCREW | Mounting bolt for tube bracket |
Frequently Asked Questions
Q: How do I know if my ZF WG190 needs a new oil level tube?
A: Look for visible oil residue around the tube base, difficulty inserting the dipstick, or a persistent low oil warning despite adding fluid. A physical inspection for cracks or corrosion is recommended every 50,000 miles.
Q: Can I install the 4657.231.027 tube without removing the transmission?
A: Yes, in most cases the tube can be replaced from the top of the transmission after removing the dipstick and loosening the fixing plate. However, if the tube is seized, partial removal of the HOUS.FRONT SECT may be required for access.
Q: Is this part compatible with aftermarket dipsticks?
A: The OEM tube is calibrated for ZF genuine dipsticks. Using non-OEM dipsticks may result in inaccurate readings. We recommend pairing this tube with the original ZF dipstick assembly for precise fluid level measurement.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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