Overview
The ZF 4661.185.082 ACCESSORIES component is a critical mounting and alignment fixture engineered specifically for the WG 94 Series transmission family. This OEM genuine part ensures precise positioning of the torque converter assembly within the bell housing, maintaining correct axial clearance and rotational stability during high-torque operations. The SKU 4661.185.082 serves as a structural interface between the 4661134014: CONVERTER and the transmission casing, absorbing vibrational loads while preventing metal-on-metal contact. Without this accessory, the entire drivetrain assembly risks misalignment under heavy industrial loads.
Symptoms of Failure
- Persistent oil seepage at the bell housing joint: When the 4661.185.082 accessory degrades, the sealing surface becomes compromised, leading to gradual ATF leaks that appear as dark streaks on the transmission exterior.
- Low-frequency rumbling during gear engagement: Worn accessories allow excessive play between the 0501340519: CONVERTER and housing, producing a distinct growling noise that intensifies under load.
- Erratic shift timing in WG94 transmissions: Misalignment caused by a failing 4661.185.082 disrupts hydraulic pressure feedback, causing delayed or harsh shifts between forward gears.
- Visible fretting wear on the 4661130004: ENGINE CONNECTION flange: Metal debris from a degraded accessory contaminates the mating surface, accelerating corrosion and reducing clamping force.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4661.185.082 |
| Material | Hardened alloy steel (DIN 1.7225) |
| Weight | 1.42 kg (3.13 lbs) |
| Outer Diameter | 185 mm ±0.1 mm |
| Bolt Hole Pattern | 8x M12 on 160 mm PCD |
| Surface Treatment | Zinc-nickel plating (480h salt spray) |
| Operating Temperature | -40°C to +150°C |
| Torque Spec | 85 Nm (62.7 lb-ft) |
Compatibility
This ZF 4661.185.082 accessory is designed for the WG 94 Series, including models WG180, WG200, and WG210 transmissions found in heavy-duty construction vehicles and municipal trucks. It directly interfaces with the 4642230036: DIAPHRAGM assembly to maintain concentricity. While primarily for WG94 platforms, it also fits select ZF 6HP and 8HP automatic transmissions when used with the appropriate adapter kit. Always verify your transmission serial number against the OEM parts catalog before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4661134014 | CONVERTER | Torque multiplication and fluid coupling |
| 0501340519 | CONVERTER | High-stall torque converter for heavy loads |
| 4661130004 | ENGINE CONNECTION | Flywheel-to-transmission mounting plate |
| 4642230036 | DIAPHRAGM | Hydraulic pressure modulation |
| 0730301765 | WASHER | Load distribution under bolt heads |
| 0636031180 | HEXAGON SCREW | Fastener for accessory mounting |
| 4661122005 | PRESSURE OIL PUMP | Main hydraulic pressure generation |
| 4661298011 | PUMP | Lubrication circuit pump assembly |
| 0501226391 | PUMP | High-volume auxiliary pump |
| 0634303026 | O-RING | Hydraulic seal between components |
