Overview
The ZF 4642.311.099 SPRAY TUBE is a precision-engineered lubrication component designed specifically for the WG 150 Series transmission. This OEM genuine part directs pressurized transmission fluid to critical internal assemblies, ensuring consistent cooling and lubrication of planetary gearsets and clutch packs. The SKU 4642.311.099 sits within the upper valve body and main shaft area, functioning as a conduit that prevents thermal degradation during heavy-duty operations. Without this spray tube, oil distribution becomes erratic, leading to accelerated wear on adjacent components such as the 4642101047: TRANSMISSION HOUSING and the 4642301207: TRANSMISSION HOUSING, both of which rely on proper fluid flow for structural integrity.
Symptoms of Failure
- Erratic gear engagement or delayed shifting: When the spray tube cracks or clogs, hydraulic pressure drops, causing hesitation when moving from neutral to drive or reverse.
- Visible oil leaks near the bell housing: A fractured spray tube often allows ATF to escape, leaving puddles under the transmission and reducing fluid levels.
- Overheating transmission with burnt smell: Insufficient lubrication from a blocked spray tube leads to friction material burning, especially during sustained load operations.
- Whining or grinding noises from the gear train: Metal-on-metal contact occurs when the spray tube fails to deliver oil to planetary bearings, producing audible distress.
Technical Specifications
| Specification | Detail |
|---|---|
| OEM Part Number | 4642.311.099 |
| Material | Hardened steel with corrosion-resistant coating |
| Length | 185 mm (approx.) |
| Outer Diameter | 12 mm |
| Weight | 0.14 kg |
| Fluid Ports | 4 precision-drilled orifices |
| OEM Reference | ZF 4642.311.099 |
Compatibility
This spray tube is engineered for the ZF WG 150 Series, but it also fits select models in the WG 180 and WG 200 families due to shared lubrication architecture. It is directly compatible with transmissions using the 0730365067: TYPE PLATE for identification and the 0631311009: GROOVED STUD for mounting. Always verify your transmission serial number against the WG 150 parts catalog before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4642101047 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4642301207 | TRANSMISSION HOUSING | Secondary housing for valve body area |
| 0730365067 | TYPE PLATE | Identification plate with model specs |
| 0631311009 | GROOVED STUD | Fastener for securing spray tube assembly |
| 4642301168 | SCREEN SHEET | Filter mesh for oil intake |
| 4642301169 | SCREEN SHEET | Secondary filter element |
| 0636100621 | HEXAGON SCREW | Mounting bolt for housing |
| 4642301186 | SCREEN SHEET | Fine mesh debris screen |
| 4644106300 | SHIFT SYSTEM | Hydraulic shift control assembly |
| 4644306500 | COVER PLATE | Sealing plate for valve body access |
