Overview
The ZF 4642.131.003 FILLER NOZZLE is a critical fluid management component engineered specifically for the WG150 series transmission. This OEM genuine part directs hydraulic oil into the transmission housing during filling and servicing, ensuring precise fluid delivery to the torque converter and clutch packs. The nozzle integrates directly into the upper casing assembly, working in conjunction with the TRANSMISSION HOUSING (4642101047) and the TRANSMISSION HOUSING (4642301207) to maintain proper lubrication pathways. As part number 4642.131.003, this filler nozzle prevents over-pressurization during refill and supports consistent oil flow across all operating temperatures.
Symptoms of Failure
- Hydraulic oil seepage around the fill port: A worn filler nozzle gasket or cracked plastic body allows ATF to weep externally, leaving visible drips on the transmission bell housing.
- Erratic gear engagement during cold starts: When the nozzle fails to direct oil correctly, the transmission may hesitate or slip between 1st and 2nd gear until the fluid warms up.
- Foaming or aerated transmission fluid: A damaged filler nozzle can introduce air into the oil stream, causing bubbles on the dipstick and noisy pump operation.
- Difficulty achieving proper fluid level: A deformed nozzle prevents the fill tube from seating correctly, leading to under- or over-filling conditions that trigger warning lights.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4642.131.003 |
| OEM Reference | ZF 4642.131.003 |
| Material | Glass-filled nylon (PA66-GF30) |
| Overall Length | 95 mm |
| Inlet Diameter | 22 mm |
| Outlet Diameter | 14 mm |
| Weight | 0.045 kg |
| Seal Type | Integrated O-ring (NBR) |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This filler nozzle is primarily designed for the ZF WG150 series, but it also fits select models in the WG180 and WG200 families due to shared housing architecture. The part interfaces directly with the TYPE PLATE (0730365067) for identification and is secured using the GROOVED STUD (0631311009). Confirmed compatible transmissions include WG150, WG180, WG200, and WG250 variants produced between 2005 and 2020. Always verify your housing casting number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4642101047 | TRANSMISSION HOUSING | Main casing for gear train and valve body |
| 4642301207 | TRANSMISSION HOUSING | Upper housing section for clutch pack |
| 0730365067 | TYPE PLATE | Identification tag for transmission model |
| 0631311009 | GROOVED STUD | Mounting fastener for filler nozzle |
| 4642301168 | SCREEN SHEET | Filter mesh for oil pickup |
| 4642301169 | SCREEN SHEET | Secondary filter element |
| 0636100621 | HEXAGON SCREW | Bolt for housing attachment |
| 4642301186 | SCREEN SHEET | Fine mesh strainer |
| 4644106300 | SHIFT SYSTEM | Manual valve control assembly |
| 4644306500 | COVER PLATE | Sealing plate for access port |
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