Overview
The ZF 4661.272.035 CLUTCH is a critical friction component engineered for the WG 90 and WG 94 series transmissions. This OEM genuine part is responsible for engaging and disengaging power flow between the engine and the gearbox, enabling smooth gear shifts and torque transfer under heavy loads. Positioned within the clutch pack assembly, the SKU 4661.272.035 directly interfaces with the 4661101018: TRANSMISSION HOUSING and the 4661301050: HOUSING II, ensuring precise alignment and hydraulic pressure distribution. Without this clutch, the transmission cannot modulate power delivery, leading to operational failure in industrial drivetrains.
Symptoms of Failure
When the ZF 4661.272.035 CLUTCH begins to wear, operators typically notice these specific failure indicators:
- Delayed or harsh gear engagement – The clutch fails to grip immediately, causing a noticeable lag or jolt when shifting into forward or reverse.
- Oil leaks near the clutch housing – Worn seals or friction material degradation allow transmission fluid to escape, often pooling around the 0631306174: CYLINDRICAL PIN area.
- Gear slipping under load – The clutch cannot maintain torque, causing the transmission to slip out of gear during acceleration or uphill operation.
- Burning smell or discolored fluid – Excessive heat from clutch slippage burns the friction material, contaminating the oil and requiring immediate replacement.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 4661.272.035 |
| OEM Reference | ZF 4661.272.035 |
| Material | Sintered bronze friction lining with steel core |
| Outer Diameter | 272 mm (estimated) |
| Inner Diameter | 180 mm (estimated) |
| Thickness | 3.5 mm (new) |
| Weight | 0.85 kg |
| Operating Pressure | 12–18 bar |
Compatibility
This clutch is designed for the ZF WG 94 series and is also compatible with the WG 90, WG 180, and WG 200 transmission models. It integrates with the 4661301093: TUBE for hydraulic fluid routing and the 0631306174: CYLINDRICAL PIN for precise positioning. Always verify your transmission model number before ordering to ensure correct fitment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4661101018 | TRANSMISSION HOUSING | Main structural casing for gear and clutch assembly |
| 4661301050 | HOUSING II | Secondary housing supporting clutch pack alignment |
| 4661301093 | TUBE | Hydraulic fluid conduit for clutch actuation |
| 0631306174 | CYLINDRICAL PIN | Alignment dowel for housing and clutch positioning |
| 0769123894 | TYPE PLATE | Identification label for transmission model |
| 0750100022 | SCREW PLUG | Seals oil passages in the housing |
| 0636302602 | SCREW PLUG | Secondary plug for pressure test ports |
| 0634100633 | O-RING | Seals between clutch and housing interfaces |
| 4661301029 | NOZZLE | Directs oil spray for clutch cooling |
| 4661301027 | NOZZLE | Secondary oil jet for lubrication |
