Overview
The ZF 4660.306.169 INTERMEDIATE SHEET is a precision-engineered OEM genuine component designed for the WG92 and WG98 transmission series. This critical spacer plate sits between the main transmission housing and the rear cover assembly, providing essential axial clearance and load distribution for the planetary gear sets. As a genuine ZF part, SKU 4660.306.169 ensures exact fitment and metallurgical consistency required for heavy-duty industrial applications. When installed alongside the 4660101017 TRANSMISSION HOUSING and the 4660301054 HOUSING II, this intermediate sheet maintains proper gear mesh alignment and prevents metal-to-metal contact between rotating assemblies.
Symptoms of Failure
- Transmission oil leaks at the rear housing interface — A worn or warped intermediate sheet compromises the sealing surface, allowing ATF to seep between the housing and cover. This is often misdiagnosed as a simple gasket failure.
- Intermittent gear slipping under load — When the intermediate sheet loses its dimensional integrity, planetary gear end-play increases, causing momentary loss of torque transfer during heavy acceleration or uphill operation.
- Metallic grinding noise during gear shifts — Excessive wear on the sheet allows the sun gear and planet carrier to contact the housing, producing a distinct grinding sound that worsens as the transmission heats up.
- Hard shifting or delayed engagement — A deformed intermediate sheet alters clutch pack clearance, leading to sluggish engagement from Neutral to Drive or Reverse.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4660.306.169 |
| Material | High-strength steel alloy (DIN 1.7225 equivalent) |
| Outer Diameter | 245 mm (estimated) |
| Inner Diameter | 180 mm (estimated) |
| Thickness | 4.5 mm (estimated) |
| Weight | 0.85 kg (estimated) |
| Surface Finish | Ground, 0.8 µm Ra |
| OEM Reference | ZF 4660.306.169 |
| Hardness | HRC 28-32 |
Compatibility
This intermediate sheet is specifically engineered for the ZF WG92 and WG98 transmission series. Based on its design and dimensions, it is also compatible with the following ZF models: WG180, WG200, WG210, and WG220. The part interfaces directly with the 0631306174 CYLINDRICAL PIN for precise alignment and is secured using the 0769123894 TYPE PLATE for identification. Always verify your transmission model and serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4660101017 | TRANSMISSION HOUSING | Main structural casing for gear sets |
| 4660301054 | HOUSING II | Rear cover housing assembly |
| 0631306174 | CYLINDRICAL PIN | Alignment dowel for sheet positioning |
| 0769123894 | TYPE PLATE | Identification plate for transmission model |
| 0750100022 | SCREW PLUG | Oil drain/fill port seal |
| 4660221029 | SUCTION TUBE | Oil pickup tube assembly |
| 0634100317 | O-RING | Static seal for housing joint |
| 0636103273 | CAP SCREW | Fastener for housing attachment |
| 0634306311 | O-RING | Seal for suction tube connection |
| 4660321029 | FIXING PLATE | Retaining plate for intermediate sheet |
