Overview
The ZF 4699.801.296 GK10LD is a genuine OEM gearshift assembly engineered for heavy-duty construction machinery transmissions. This component functions as the primary shift actuator within the transmission valve body, directing hydraulic pressure to engage specific gear sets. The SKU 4699.801.296 is a direct replacement for the original equipment part, ensuring precise shift timing and clutch pack engagement in ZF power shift transmissions. It sits between the control valve and the clutch housing, translating driver commands into mechanical action.
Symptoms of Failure
- Delayed or erratic gear engagement — When the 4699.801.296 wears internally, hydraulic passages may clog or leak, causing a noticeable lag when shifting from neutral to drive or reverse. This often manifests as a “harsh shift” or “slipping in forward gears” condition.
- Transmission oil leaks around the shift housing — A worn seal or cracked housing on the GK10LD assembly can allow ATF to weep from the valve body area, leaving puddles under the machine after operation.
- Inability to shift into specific gears — If the shift spool inside the 4699.801.296 sticks due to contamination or scoring, operators may find certain gears (e.g., 2nd or 3rd) completely unresponsive while others work normally.
- Intermittent neutral safety switch failure — A failing shift actuator can cause the machine to start in gear or fail to start at all, as the neutral position sensor loses alignment.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4699.801.296 |
| OEM Reference | ZF GK10LD |
| Material | Die-cast aluminum housing with hardened steel spool |
| Weight | 1.8 kg (4.0 lbs) |
| Length | 185 mm |
| Width | 95 mm |
| Height | 75 mm |
| Operating Pressure | 12-18 bar |
| Seal Type | Nitrile O-ring (included) |
Compatibility
This genuine ZF 4699.801.296 GK10LD shift assembly is designed for use in the following ZF transmission models commonly found in construction machinery such as wheel loaders, telehandlers, and graders:
- ZF WG180
- ZF WG200
- ZF WG211
- ZF WG310
- ZF 4WG-200
- ZF 6WG-200
It is also compatible with certain ErgoPower and Ecomat series transmissions used in off-highway equipment. Always verify your transmission serial number before ordering.
When replacing the 4699.801.296, it is critical to inspect the 4699001237 GK10LD shift rail for wear, as these components work in tandem. The 4699101108 HOUSING should also be checked for cracks or corrosion. Additionally, the 4699102172 INPUT shaft and 4699103057 OUTPUT flange must be aligned properly to prevent premature failure of the shift assembly.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4699001237 | GK10LD | Shift rail assembly |
| 4699101108 | HOUSING | Transmission valve body housing |
| 4699102172 | INPUT | Input shaft assembly |
| 4699103057 | OUTPUT | Output flange assembly |
| 4699105108 | TURNTABLE BEARING | Rotary support bearing |
| 0501329881 | HOUSING COVER | Sealing cover for valve body |
| 0630513065 | SNAP RING | Retaining ring for shaft |
| 0634306309 | O-RING | Hydraulic seal |
| 0637885612 | BREATHER | Pressure equalization vent |
| 0769100082 | TYPE PLATE | Identification label |
