Overview
The ZF 4657.131.009 FILLER NOZZLE is a precision-engineered fluid delivery component designed exclusively for the WG190 and WG210 series transmissions. This OEM genuine part functions as the primary oil fill point, directing transmission fluid into the main sump via the 4657101031: TRANSMISSION HOUSING assembly. By ensuring a controlled, splash-free fill path, the nozzle prevents aeration and maintains proper hydraulic pressure within the system. The SKU 4657.131.009 is manufactured to ZF’s original tolerances, guaranteeing a direct fit and reliable sealing against the 4657201027: HOUS.FRONT SECT interface.
Symptoms of Failure
- External oil seepage at the fill neck: A cracked or warped filler nozzle often causes slow, persistent oil leaks around the top of the transmission housing, leading to low fluid levels and eventual overheating.
- Hard shifting or delayed engagement: When the nozzle fails to direct fluid correctly, air enters the hydraulic circuit, resulting in erratic gear engagement and noticeable slipping during acceleration.
- Whining noise from the pump area: A damaged nozzle can starve the oil pump of fluid, producing a high-pitched whine as cavitation occurs inside the 4657201020: HOUSING REAR PART.
- Contaminated fluid visible at fill port: A loose or broken nozzle allows debris to enter the system, often seen as metallic particles or sludge when checking the dipstick.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4657.131.009 |
| Material | Die-cast aluminum with corrosion-resistant coating |
| Overall Length | 145 mm |
| Inlet Diameter | 32 mm |
| Mounting Hole Center | 85 mm |
| Weight | 0.18 kg |
| OEM Reference | ZF 4657.131.009 |
| Seal Type | Integrated O-ring groove (O-ring not included) |
Compatibility
This filler nozzle is a direct replacement for ZF WG180, WG190, WG200, and WG210 series transmissions manufactured between 2005 and 2020. It is specifically designed to interface with the 0631306792: CYLINDRICAL PIN alignment feature on the front housing section. Always verify your transmission serial number against ZF’s parts catalog to confirm fitment, as later WG211 models may use a revised nozzle design.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101031 | TRANSMISSION HOUSING | Main structural casing that encloses all gear sets and hydraulic components. |
| 4657201027 | HOUS.FRONT SECT | Forward housing section that supports the torque converter and oil pump. |
| 4657201020 | HOUSING REAR PART | Rear housing section that contains the output shaft and speed sensors. |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel pin for precise housing-to-housing registration. |
| 0636100801 | CAP SCREW | M10 hex-head bolt for securing the filler nozzle to the housing. |
| 4656301148 | FIXING PLATE | Retaining plate that locks the nozzle in position against vibration. |
| 4657301032 | SCREEN SHEET | Fine mesh filter (coarse) for the main oil intake. |
| 4657301033 | SCREEN SHEET | Fine mesh filter (fine) for the auxiliary oil circuit. |
| 0636100803 | CAP SCREW | M8 hex-head bolt for the fixing plate assembly. |
| 4681301040 | OIL FEED.HOUSG. | Oil feed housing that channels pressurized fluid to the clutch packs. |
Frequently Asked Questions
Q: Can I install this filler nozzle without removing the transmission from the vehicle?
A: Yes, the 4657.131.009 nozzle is accessible from the top of the transmission once the fill tube and any air intake ducting are removed. However, you must drain the fluid to below the nozzle level to prevent spillage.
Q: Does this part include the O-ring seal?
A: No, the nozzle is sold as a bare component. We recommend ordering a separate O-ring (ZF part 0730104004) to ensure a leak-free seal against the housing.
Q: Is the 4657.131.009 compatible with the WG211 transmission?
A: It is not recommended. The WG211 uses a revised front housing geometry. Always cross-reference your transmission model code with ZF’s official compatibility chart before purchasing.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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