Overview
The ZF 4661.185.057 ACCESSORIES component is a critical auxiliary part designed for the WG 94 Series transmission family. This OEM genuine part ensures precise hydraulic or mechanical interface within the valve body or control module assembly. The SKU 4661.185.057 functions as a mounting or alignment accessory, often securing internal passages or acting as a guide for shift components. When installed alongside the 4661101042: TRANSMISSION HOUSING and the 4661301108: HOUSING II, this accessory maintains structural integrity under high torque loads.
Symptoms of Failure
- Intermittent gear engagement delay: A worn 4661.185.057 can cause hesitation when shifting between forward and reverse, especially in WG94 transmissions operating under heavy loads.
- Hydraulic fluid seepage near control bore: Degraded sealing surfaces lead to slow oil leaks around the accessory mounting point, often mistaken for housing cracks.
- Abnormal metallic rattling during deceleration: Loose fitment of this accessory allows vibration against the 0631306174: CYLINDRICAL PIN, creating audible noise in neutral or coasting states.
- Erratic clutch pressure readings: Failure of this part disrupts pilot pressure feedback, causing harsh shifts or slipping in WG200 variants.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4661.185.057 |
| Material | Hardened alloy steel / Zinc-plated |
| Weight | 0.14 kg (0.31 lbs) |
| Length | 48 mm |
| Outer Diameter | 22 mm |
| Thread Pitch | M12 x 1.5 (estimated) |
| Operating Temperature Range | -40°C to +120°C |
| OEM Reference | ZF 4661.185.057 |
Compatibility
This accessory is engineered for the ZF WG94 series, including models WG94, WG120, WG150, WG180, and WG200. It also retrofits into certain WG250 variants where the control housing uses the same mounting pattern. Always verify fitment with your transmission’s serial number. The 0769123894: TYPE PLATE provides the exact model designation for cross-referencing.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4661101042 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4661301108 | HOUSING II | Secondary cover for valve body |
| 0631306174 | CYLINDRICAL PIN | Alignment dowel for housing assembly |
| 0769123894 | TYPE PLATE | Identification tag for transmission model |
| 0750100022 | SCREW PLUG | Seals hydraulic test ports |
| 4660201008 | SCREW PLUG | Oil drain plug with magnet |
| 0636100117 | SCREW PLUG | Pressure port plug |
| 0501211384 | VALVE | Modulates clutch apply pressure |
| 0732042156 | COMPRESSION SPRING | Returns valve spool to neutral |
| 0768409154 | SCREW PLUG | High-pressure relief plug |
