Overview
The ZF 4660.305.050 SCREEN SHEET is a critical filtration component engineered for the WG 92 Series transmission. Positioned within the hydraulic control circuit, this genuine OEM part ensures that transmission fluid remains free of particulate contaminants before it reaches precision valves and clutch packs. The SKU 4660.305.050 acts as a primary barrier, trapping debris generated during normal gear operation and protecting downstream components such as the 4660101015: TRANSMISSION HOUSING from abrasive wear. Without this screen sheet, even microscopic particles can compromise hydraulic pressure stability, leading to premature system degradation.
Symptoms of Failure
- Intermittent gear slippage under load: A clogged or torn screen sheet restricts fluid flow, causing pressure drops that result in erratic shifting or slipping during acceleration.
- Delayed engagement from Neutral to Drive: When the screen sheet becomes obstructed, hydraulic response time increases, producing a noticeable lag when selecting gears.
- Contaminated oil on the dipstick: Visible metallic particles or dark sludge in the fluid indicate the screen sheet has failed to filter properly, allowing debris to circulate through the 4660301054: HOUSING II.
- Erratic shift quality with harsh engagements: A ruptured screen sheet permits large debris to jam valve bodies, resulting in abrupt or unpredictable gear changes.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 4660.305.050 |
| OEM Reference | ZF 4660.305.050 |
| Material | Stainless steel mesh with reinforced polymer frame |
| Dimensions (L x W x H) | 180 mm x 120 mm x 8 mm |
| Weight | 0.35 kg |
| Mesh Micron Rating | 150 microns nominal |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This screen sheet is specifically designed for the ZF WG 92 Series, but it also fits several related transmission models that share the same hydraulic filtration architecture. Compatible units include the WG180, WG200, WG210, and WG240 series. The part interfaces directly with the 0631306174: CYLINDRICAL PIN for alignment and the 0769123894: TYPE PLATE for identification. Always verify your transmission serial number against the OEM parts catalog to ensure correct fitment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4660101015 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4660301054 | HOUSING II | Secondary housing for valve body and filter |
| 0631306174 | CYLINDRICAL PIN | Alignment dowel for screen sheet positioning |
| 0769123894 | TYPE PLATE | Identification tag for transmission model |
| 0750100022 | SCREW PLUG | Seals fluid passages during service |
| 4660221029 | SUCTION TUBE | Draws fluid from sump to pump |
| 0634100317 | O-RING | Seals screen sheet to housing interface |
| 0636103273 | CAP SCREW | Fastens screen sheet retaining bracket |
| 0634306311 | O-RING | Secondary seal for suction tube connection |
| 4660321029 | FIXING PLATE | Secures screen sheet in housing cavity |
