Overview
The ZF 2094.306.043 GEAR SHIFT RAIL is a precision-machined component designed for the WG100, WG130, and WG131 transmission series. This genuine OEM part functions as the primary linear actuator within the shift mechanism, translating driver input into precise fork movement to engage gear ratios. Located within the upper housing of the transmission, the shift rail interfaces directly with the shift forks and detent springs to ensure positive gear engagement. The SKU 2094.306.043 is manufactured to ZF’s original tolerances, guaranteeing a direct fit and consistent shift feel. When installed alongside a 2094104412: MAIN SHAFT or a 2094304054: MAIN SHAFT, this rail ensures synchronized load transfer across the entire gear train.
Symptoms of Failure
- Gear Slipping Under Load: A worn shift rail can cause the transmission to pop out of gear during acceleration or deceleration, as the rail no longer holds the shift fork in the correct detent position.
- Hard Shifting or Grinding: If the rail surface becomes scored or pitted, the shift fork may bind, resulting in difficult engagement or audible grinding when moving between gears.
- Excessive Lateral Play: Visible movement of the gearshift lever without corresponding gear engagement indicates that the rail’s guide grooves have worn beyond specification, reducing shift precision.
- Oil Leaks from Shift Tower: A worn rail can allow transmission fluid to bypass the shift shaft seal, leading to drips or wetness around the shift housing area.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 2094.306.043 |
| Material | Case-hardened alloy steel (16MnCr5 equivalent) |
| Overall Length | ~285 mm |
| Diameter | ~18 mm (guide section) |
| Surface Hardness | 58–62 HRC |
| Weight | ~0.45 kg |
| OEM Reference | ZF 2094.306.043 |
Compatibility
This shift rail is engineered for the ZF WG100, WG130, and WG131 series transmissions, which are commonly found in medium-duty commercial vehicles and off-highway equipment. While primarily designed for these models, the rail may also be compatible with certain variants of the WG180 and WG200 series, provided the shift housing and fork geometry match. For optimal performance, always pair this rail with a compatible 2094106010: SHIFT SYSTEM and a 2094206001: GEARSHIFT SHAFT to maintain proper alignment and shift travel.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2094104412 | MAIN SHAFT | Transfers torque from input to output gears |
| 2094304054 | MAIN SHAFT | Alternate main shaft for specific gear ratios |
| 2094106010 | SHIFT SYSTEM | Complete shift mechanism assembly |
| 2094206001 | GEARSHIFT SHAFT | Transmits shift lever motion to the rail |
| 2094306053 | GEARSHIFT SHAFT | Alternate shift shaft for WG130 variants |
| 0630513070 | SNAP RING | Secures rail axial position in housing |
| 2094306019 | WASHER | Thrust washer for rail end play control |
| 0732040444 | COMPRESSION SPRING | Provides detent force for shift rail |
| 0732040728 | COMPRESSION SPRING | Heavy-duty detent spring for high-torque applications |
| 2093206001 | BUSH | Guide bushing for shift rail support |
Frequently Asked Questions
Q: How do I know if my ZF 2094.306.043 shift rail is worn?
A: Measure the rail diameter at the wear points using a micrometer. If the diameter is reduced by more than 0.1 mm from the original 18 mm specification, or if you notice visible scoring, replacement is recommended. Additionally, check for excessive axial play when the rail is installed in its housing.
Q: Can I replace just the shift rail without replacing the shift forks?
A: While the rail can be replaced independently, it is best practice to inspect the shift fork pads and the 2094206001: GEARSHIFT SHAFT for wear simultaneously. Worn forks will accelerate wear on a new rail, so replacing both components together ensures maximum service life.
Q: Is this rail compatible with the ZF WG180 transmission?
A: The 2094.306.043 is officially specified for WG100/WG130/WG131 models. For WG180 applications, verify the shift housing casting number and compare the rail length. In some WG180 variants, a longer rail (such as the 2094306053) may be required. Always cross-reference your original part number before ordering.
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ZF 2094.306.043 GEAR SHIFT RAIL – Gear RFQ Support
PartsZF helps B2B buyers source ZF 2094.306.043 GEAR SHIFT RAIL with fast RFQ support, expert part-number lookup, documentation review, and export coordination. This gear page is built from confirmed catalog, media, and reference data to reduce sourcing uncertainty for construction machinery transmission parts.
Part-Number Summary
Use ZF number 2094.306.043 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: SHIFT SYSTEM
Cross Reference Support
If you have an OEM number, old supplier number, or visible marking, include it with your RFQ so PartsZF can compare it with the available records.
Specification Snapshot
| ZF part number | 2094.306.043 |
|---|---|
| Normalized SKU | 2094306043 |
| Part name | GEAR SHIFT RAIL |
| Product category | gear |
| Cross-reference support | Available for RFQ review |
| Weight | 1.74 |
Image and Documentation Notes
Current product media status: fallback. Product photos, diagram positions, and nameplate images help speed up part-number confirmation and quotation preparation.
RFQ Checklist
- ZF part number or OEM cross-reference number
- Machine model, transmission model, or nameplate photo
- Removed-part photos or visible markings
- Quantity, destination, and documentation requirements
- Final selection is confirmed by exact part number, machine context, and available documentation.
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- ZF 4657.354.044 OUTPUT GEAR
- ZF 4644.306.326 GEAR SHIFT HOUSING
