Overview
The ZF 2093.129.030 BRAKE SHAFT is a precision-machined component engineered for the internal braking mechanism of ZF WG100, WG130, and WG131 powershift transmissions. This OEM genuine part, identified by SKU 2093.129.030, functions as the primary actuation shaft that transfers mechanical force from the brake piston to the clutch pack assembly. Located within the transmission’s output section, it ensures smooth engagement and disengagement of the parking or service brake system. When paired with a 2093109029: DIFFERENTIAL, this shaft maintains the critical alignment required for load distribution across the drivetrain.
Symptoms of Failure
- Intermittent brake drag or transmission overheating: A worn brake shaft can cause the brake pads to remain partially engaged, generating excessive heat and reducing fuel efficiency.
- Oil leaks near the output housing: Deterioration of the shaft’s sealing surface leads to transmission fluid seepage, often visible as drips under the vehicle.
- Delayed or incomplete brake release: Operators may notice a hesitation when shifting from neutral to drive, as the shaft fails to disengage the brake pack fully.
- Metallic grinding noises during braking: Advanced wear on the shaft splines creates a distinct grinding sound, indicating imminent failure of the brake assembly.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2093.129.030 |
| Material | Case-hardened alloy steel (16MnCr5) |
| Overall Length | 185 mm |
| Shaft Diameter | 32 mm |
| Spline Count | 14 involute splines |
| Weight | 0.85 kg |
| OEM Reference | ZF 2093.129.030 |
| Sealing Surface Hardness | 58-62 HRC |
Compatibility
This brake shaft is specifically designed for the ZF WG100, WG130, and WG131 series transmissions, commonly found in agricultural tractors and construction loaders. It also fits select variants of the WG180 and WG200 models where the brake actuation geometry matches. For differential assemblies, verify compatibility with the 2093209094: DIFFERENTIAL and the 2093309078: DIFF.HOUSING to ensure correct shaft engagement. The 0750117075: TAPER ROLLER BEARING is a common companion part that supports the shaft’s rotational stability.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109029 | DIFFERENTIAL | Distributes torque between axles |
| 0750117075 | TAPER ROLLER BEARING | Supports shaft radial loads |
| 2093209094 | DIFFERENTIAL | Secondary torque distribution unit |
| 2093309078 | DIFF.HOUSING | Encloses differential gears |
| 0631100223 | SPRING PIN | Secures shaft to actuator fork |
| 0730300820 | THRUST WASHER | Reduces axial friction on shaft |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to wheel hubs |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential to wheels |
| 5838300811 | THRUST WASHER | Secondary axial load bearing |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Meshes with axle bevel gear |
Frequently Asked Questions
Q: Can the ZF 2093.129.030 brake shaft be used in a WG180 transmission?
A: Yes, it is compatible with WG180 models that share the same brake actuation geometry as the WG130 series. Always verify the spline count and shaft length against your existing part.
Q: What causes premature wear on this brake shaft?
A: Contaminated transmission fluid or misalignment of the 0750117075: TAPER ROLLER BEARING often accelerates wear. Regular fluid changes and bearing inspections can extend shaft life.
Q: Is the 2093.129.030 shaft supplied with a seal?
A: No, this is the bare shaft only. You will need to source the appropriate seal separately, typically part of the transmission overhaul gasket kit.
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ZF 2093.129.030 BRAKE SHAFT – Shaft RFQ Support
For ZF 2093.129.030 BRAKE SHAFT, send the part number, removed-part photos, and application context so PartsZF can prepare a focused sourcing response.
Part-Number Summary
Use ZF number 2093.129.030 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: TRA 16
- Illustration section: BRAKE SHAFT
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 | 2093.129.030 |
|---|---|
| Normalized SKU | 2093129030 |
| Part name | BRAKE SHAFT |
| Product category | shaft |
| RFQ support | Part-number lookup and documentation review |
| Media support | Product photo or diagram review when available |
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.
Related Parts
- ZF 2094.110.011 P.T.O. SHAFT
- ZF 2094.110.014 P.T.O. SHAFT
- ZF 4642.303.002 OUTPUT SHAFT
- ZF 2093.110.011 P.T.O. SHAFT
- ZF 5838.300.106 INPUT SHAFT
