Overview
The ZF 4699.808.045 GK16 is a precision-engineered OEM genuine part designed for the clutch pack assembly within ZF heavy-duty powershift transmissions. This component, identified by SKU 4699.808.045, functions as a critical friction element that manages torque transfer between planetary gear sets. Positioned directly within the GK16 clutch group, it ensures smooth engagement and disengagement under high-load conditions typical in construction machinery. When paired with the 4699008042: GK16 assembly, this part maintains hydraulic pressure integrity and prevents premature wear in the transmission’s rotating clutch drums.
Symptoms of Failure
- Delayed gear engagement – A worn 4699.808.045 causes sluggish shifting, especially when moving from neutral to forward or reverse under load.
- Transmission oil leaks – Degraded sealing surfaces on this part allow ATF to escape near the clutch housing, leaving visible drips on the bell housing.
- Intermittent gear slipping – As friction material wears, the clutch pack fails to hold torque, resulting in RPM flare without corresponding vehicle speed increase.
- Metallic grinding noises – Advanced wear produces audible chatter from the transmission sump, indicating imminent failure of the GK16 clutch pack.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4699.808.045 |
| Type | Friction Disc / Clutch Plate |
| Material | Sintered Bronze on Steel Core |
| Outer Diameter | 180 mm (estimated) |
| Inner Diameter | 120 mm (estimated) |
| Thickness | 3.5 mm (new) |
| Weight | 0.45 kg |
| OEM Reference | ZF 4699.808.045 |
Compatibility
This OEM genuine part is compatible with ZF WG180, WG200, and WG210 series powershift transmissions commonly used in wheel loaders, graders, and dozers. It specifically fits the GK16 clutch pack assembly found in these models. For complete rebuilds, verify compatibility with the 4699101107: HOUSING and the 4699102151: INPUT shaft assembly. The 4699103113: OUTPUT shaft must also be inspected for wear when replacing this disc.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4699008042 | GK16 | Complete clutch pack assembly |
| 4699101107 | HOUSING | Clutch drum housing |
| 4699102151 | INPUT | Input shaft for torque transfer |
| 4699103113 | OUTPUT | Output shaft to driveline |
| 4699105089 | HOUSING TOP PART | Upper housing cover |
| 4699301191 | HOUSING | Main transmission housing |
| 4699301041 | COVER | Access cover for clutch pack |
| 0634303936 | O-RING | Seals hydraulic fluid passages |
| 0630513203 | SNAP RING | Retains clutch pack components |
| 0750110302 | SHAFT SEAL | Prevents oil leakage at shaft |
