Overview
The ZF 4699.801.104 GK10 is a precision-engineered OEM genuine part designed for the clutch pack and gear train assembly within heavy-duty ZF transmissions. This component, identified by SKU 4699.801.104, functions as a critical hub for torque transfer and gear engagement in construction machinery. It sits directly within the main transmission housing, interfacing with the input shaft and planetary gear sets to ensure smooth power delivery under extreme loads. The GK10 designation indicates its specific role in the shift mechanism, making it essential for maintaining operational integrity in excavators, wheel loaders, and graders.
Symptoms of Failure
When the ZF 4699.801.104 wears out, operators often notice delayed gear engagement or a grinding noise during shifting, particularly under load. Another common failure symptom is intermittent power loss in forward or reverse gears, which can be mistaken for hydraulic issues. You may also observe metal debris in the transmission oil filter, indicating internal wear of the GK10 splines or bearing surfaces. Finally, erratic shifting patterns—where the transmission hunts for gears—frequently point to this part losing its dimensional tolerance.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4699.801.104 |
| OEM Reference | ZF GK10 |
| Material | Case-hardened alloy steel |
| Weight | 1.85 kg (4.08 lbs) |
| Outer Diameter | 142 mm |
| Inner Diameter | 65 mm |
| Height | 48 mm |
| Spline Count | 24 internal / 30 external |
Compatibility
This OEM genuine part is engineered for use in ZF WG180, WG200, and WG210 series transmissions commonly found in construction machinery. It also fits select variants of the ZF 4WG-200 and 6WG-200 power shift transmissions. The 4699.801.104 GK10 is directly interchangeable with earlier revision 4699.801.103 and is a direct replacement for units requiring the GK10 clutch hub assembly. Always verify your transmission model tag before ordering.
Related Components
During installation, the GK10 interfaces directly with the 4699101090 HOUSING and is sealed by the 0634306309 O-RING. The 0501329881 HOUSING COVER protects the assembly, while the 0637885612 BREATHER prevents pressure buildup. Below is a complete list of companion parts for this assembly.
| Part Number | Name | Function |
|---|---|---|
| 4699101090 | HOUSING | Encloses the GK10 and gear train |
| 0501329881 | HOUSING COVER | Seals the housing top |
| 0634306309 | O-RING | Prevents oil leaks at joints |
| 0637885612 | BREATHER | Equalizes internal pressure |
| 0501319149 | SCREW PLUG | Seals oil passages |
| 0636302022 | SCREW PLUG | Drain or fill port plug |
| 0634801038 | SEALING RING | Provides static seal |
| 0730365801 | TYPE PLATE | Identification tag |
| 4699001116 | GK10 | Alternate revision of this part |
| 4699102158 | INPUT | Input shaft component |
