Overview
The ZF 4699.001.180 GK10 is a precision-engineered genuine OEM component designed for the clutch pack assembly within ZF’s heavy-duty powershift transmissions. This part functions as a critical friction element, managing torque transfer between rotating shafts under high load conditions commonly found in construction machinery. Specifically, the SKU 4699.001.180 sits within the forward-reverse clutch group, where it modulates hydraulic pressure to engage or disengage gear sets. Its robust construction ensures consistent clamping force and heat dissipation, directly influencing the transmission’s shift quality and overall operational lifespan. When paired with the 4699101081: HOUSING, this component forms a sealed unit that protects internal clutches from contamination.
Symptoms of Failure
When the ZF 4699.001.180 GK10 begins to wear, operators will notice distinct performance degradation. The most common failure symptoms include:
- Delayed or harsh engagement: A noticeable lag when shifting from neutral to drive or reverse, often accompanied by a jarring clunk.
- Torque converter shudder: A vibration felt during low-speed maneuvers or under heavy load, indicating the clutch pack is slipping.
- Hydraulic oil contamination: Dark, burnt-smelling transmission fluid caused by excessive friction material shedding from the worn GK10.
- Intermittent gear slippage: The transmission unexpectedly drops out of gear under load, especially when climbing grades or moving heavy materials.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4699.001.180 (GK10) |
| Material | Sintered bronze friction lining on steel core |
| Outer Diameter | 180 mm (7.09 in) |
| Inner Diameter | 120 mm (4.72 in) |
| Thickness | 3.5 mm (0.138 in) |
| Weight | 0.45 kg (1.0 lb) |
| Operating Pressure | 12–18 bar (174–261 psi) |
| Temperature Range | -20°C to +120°C (-4°F to +248°F) |
Compatibility
This genuine ZF 4699.001.180 GK10 friction plate is engineered for use in the following transmission models commonly deployed in construction machinery such as wheel loaders, graders, and telehandlers:
- ZF WG180
- ZF WG200
- ZF WG210
- ZF 4WG-180
- ZF 4WG-200
For a complete rebuild, always replace the 0501329881: HOUSING COVER and the 0634306309: O-RING to prevent fluid bypass. Additionally, inspect the 0637885612: BREATHER for clogging, as blocked ventilation can cause pressure buildup that accelerates clutch wear.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4699101081 | HOUSING | Encloses clutch pack and directs hydraulic flow |
| 0501329881 | HOUSING COVER | Seals the housing and retains clutch pressure |
| 0634306309 | O-RING | Prevents oil leaks between mating surfaces |
| 0637885612 | BREATHER | Equalizes internal pressure and vents moisture |
| 0501319149 | SCREW PLUG | Seals threaded ports in the transmission casing |
| 0636302022 | SCREW PLUG | Provides secondary sealing for hydraulic passages |
| 0634801038 | SEALING RING | Creates a static seal between rotating components |
| 0730365801 | TYPE PLATE | Identifies transmission model and serial number |
| 4699102153 | INPUT | Transfers engine torque into the transmission |
| 4699103063 | OUTPUT | Delivers rotational power to the driveline |
