Overview
The ZF 2094.004.012 T 7300 is an OEM genuine shift component engineered for the internal hydraulic and mechanical actuation system within heavy-duty ZF construction machinery transmissions. This part functions as a precision-machined selector element, directly interfacing with the 2094104412 MAIN SHAFT to control gear engagement under high torque loads. It sits within the upper valve body assembly of the transmission, translating driver commands into hydraulic pressure routing. The SKU 2094.004.012 is manufactured to ZF’s original tolerances, ensuring exact fitment and preventing premature wear on adjacent components like the 2094304054 MAIN SHAFT.
Symptoms of Failure
- Delayed or harsh gear engagement: When the 2094.004.012 wears, hydraulic timing is disrupted, causing a noticeable lag or jarring shift between forward and reverse gears.
- Intermittent loss of drive in specific ranges: A worn selector can fail to hold pressure, leading to the transmission dropping out of gear under load, particularly in lower working ranges.
- External hydraulic oil seepage: Cracking or deformation of the part’s sealing surfaces results in fluid weeping around the shift housing, often mistaken for a simple gasket failure.
- Erratic shift pattern or stuck selector: Debris or galling on the 2094.004.012 can cause the 2094106010 SHIFT SYSTEM to bind, preventing the operator from selecting neutral or a desired gear.
Technical Specifications
| Specification | Value |
|---|---|
| OEM Part Number | 2094.004.012 |
| Material | Case-hardened alloy steel (16MnCr5) |
| Surface Treatment | Zinc-nickel plating (anti-corrosion) |
| Overall Length | 98.5 mm |
| Outer Diameter | 42.0 mm |
| Weight | 0.34 kg |
| Hardness | 58-62 HRC (core) |
| OEM Reference | ZF T 7300 series |
Compatibility
This genuine ZF 2094.004.012 component is designed for integration into the following ZF transmission families used in wheel loaders, graders, and telehandlers: WG180, WG200, WG211, and WG310. It is also compatible with select ZF 4WG-200 and ZF 6WG-250 variants. The part directly mates with the 2094206001 GEARSHIFT SHAFT and requires proper alignment with the main shaft assembly to function correctly.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2094104412 | MAIN SHAFT | Transfers torque from engine to gear train |
| 2094304054 | MAIN SHAFT | Secondary output shaft for PTO drive |
| 2094106010 | SHIFT SYSTEM | Hydraulic valve assembly for gear selection |
| 2094206001 | GEARSHIFT SHAFT | Mechanical linkage from shift lever to valve body |
| 2094306053 | GEARSHIFT SHAFT | Alternate length shift shaft for specific models |
| 0630513070 | SNAP RING | Secures shift shaft axial position |
| 2094306019 | WASHER | Thrust washer for shift shaft end play |
| 0732040444 | COMPRESSION SPRING | Returns shift spool to neutral position |
| 0732040728 | COMPRESSION SPRING | Heavy-duty spring for high-pressure circuits |
| 2093206001 | BUSH | Wear sleeve for shift shaft support |
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