Overview
The ZF 4660.305.033 SCREEN SHEET is a critical filtration component engineered specifically for the WG 92 Series transmission sump. Positioned within the lower valve body or oil pan assembly, this genuine OEM screen sheet captures particulate contaminants before they can circulate through the hydraulic control system. By ensuring only clean transmission fluid reaches the pump and valve bodies, the 4660.305.033 directly protects precision-machined surfaces and maintains consistent clutch pack engagement pressure. This part is often replaced during a major overhaul alongside the 4660101012: TRANSMISSION HOUSING to guarantee a contaminant-free internal environment.
Symptoms of Failure
- Erratic shift quality or gear slipping: A clogged screen sheet restricts fluid flow, causing pressure drops that delay clutch engagement and produce harsh or slipping shifts.
- Overheating transmission fluid: Debris trapped in the 4660.305.033 forces the pump to work harder, generating excess heat and reducing overall thermal efficiency.
- Whining or groaning pump noise: When the screen sheet becomes partially blocked, cavitation occurs in the suction line, creating audible mechanical distress from the pump.
- Delayed engagement from Neutral to Drive: Insufficient fluid volume reaching the valve body due to a restricted screen results in a noticeable lag when selecting a gear.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number / SKU | 4660.305.033 |
| Material | Stainless steel wire mesh with reinforced polymer frame |
| Mesh Rating | 100 micron nominal |
| Overall Dimensions | 210 mm x 85 mm x 6 mm |
| Weight | 0.14 kg |
| OEM Reference | ZF 4660.305.033 |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This genuine ZF screen sheet is designed for the WG 92 Series transmission family. It is directly compatible with models including the WG92, WG120, WG150, WG180, and WG200. The 4660.305.033 also fits certain variants of the WG211 and WG250 when used with the correct 0631306174: CYLINDRICAL PIN alignment kit. Always verify the sump depth and bolt pattern against your specific transmission housing—the 4660301020: HOUSING must match the screen sheet footprint for proper sealing. After installation, affix the 0769123894: TYPE PLATE to document the service date.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4660101012 | TRANSMISSION HOUSING | Main structural casing that encloses all rotating assemblies |
| 4660301020 | HOUSING | Intermediate housing section supporting valve body and screen |
| 0631306174 | CYLINDRICAL PIN | Alignment dowel for precise housing-to-screen positioning |
| 0769123894 | TYPE PLATE | Identification plate for transmission model and serial number |
| 4660221012 | SUCTION TUBE | Fluid pickup tube from sump to pump inlet |
| 0634100317 | O-RING | Seal for suction tube and housing interfaces |
| 0636103273 | CAP SCREW | Fastener for securing screen sheet to housing |
| 0750100022 | SCREW PLUG | Drain or test port plug in transmission housing |
| 4660101804 | TRANSMISSION HOUSING | Alternate housing variant for WG92 series |
| 4660301008 | HOUSING | Lower housing section compatible with screen sheet |
