Overview
The ZF 4661.185.087 ACCESSORIES component is a critical interface element engineered specifically for the WG 94 Series transmission family. This OEM genuine part serves as a mounting or sealing accessory within the valve body or housing assembly, ensuring precise fluid routing and pressure integrity during gear shifts. The SKU 4661.185.087 is manufactured to ZF’s original tolerances, making it a direct replacement for worn units. It integrates closely with the 4661101046: HOUSING and the 4661301125: HOUSING II to maintain structural alignment within the transmission casing.
Symptoms of Failure
- Intermittent gear slippage under load – When the 4661.185.087 accessory degrades, hydraulic pressure can fluctuate, causing delayed or slipping shifts, especially in higher gears.
- External oil seepage near the valve body – A worn or cracked accessory allows ATF to escape, leaving visible drips on the transmission pan or bell housing.
- Erratic shift timing – If the part loses its sealing capability, the transmission may hunt for gears or exhibit harsh engagement during cold starts.
- Increased operating noise – A loose or failing accessory can produce a faint rattling or whining sound as it vibrates against adjacent components like the 0631306174: CYLINDRICAL PIN.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 4661.185.087 |
| Material | High-grade aluminum alloy with anodized finish |
| Weight | 0.28 kg (0.62 lbs) |
| Length | 85 mm |
| Width | 40 mm |
| Height | 25 mm |
| OEM Reference | ZF 4661.185.087 |
| Thread Type | M6 x 1.0 (mounting points) |
Compatibility
This accessory is designed for the WG 94 Series of ZF transmissions, which includes models such as the WG180, WG200, and WG240. It is also compatible with certain variants of the WG150 and WG300 where the valve body layout matches the original WG94 architecture. Always verify the 0769123894: TYPE PLATE on your transmission to confirm model designation before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4661101046 | HOUSING | Primary casing for valve body assembly |
| 4661301125 | HOUSING II | Secondary housing for auxiliary circuits |
| 0631306174 | CYLINDRICAL PIN | Alignment dowel for precise component positioning |
| 0769123894 | TYPE PLATE | Identification tag with transmission model data |
| 0750100022 | SCREW PLUG | Seals oil passages in the valve body |
| 4660201008 | SCREW PLUG | High-pressure port closure |
| 0636100117 | SCREW PLUG | Low-pressure drain plug |
| 0501211384 | VALVE | Hydraulic flow control spool |
| 0732042156 | COMPRESSION SPRING | Provides return force for valve actuation |
| 0768409154 | SCREW PLUG | Secondary sealing plug for test ports |
