Overview
The ZF 2093.129.014 BRAKE SHAFT is a critical OEM genuine component engineered for the internal brake assembly within ZF WG100, WG130, and WG131 powershift transmissions. This shaft transmits mechanical force from the brake piston to the friction disc pack, enabling precise engagement and disengagement of the transmission’s parking or service brake function. As a genuine ZF part, SKU 2093.129.014 ensures exact spline geometry and surface hardness required for reliable torque transfer. It sits directly within the transmission housing, interfacing with the differential assembly and axle components to control output shaft rotation.
Symptoms of Failure
- Intermittent brake drag or incomplete release: A worn brake shaft can cause the brake pack to remain partially engaged, leading to overheating and reduced fuel efficiency.
- Oil leakage from the brake housing seal area: Surface wear on the shaft’s sealing journal allows transmission fluid to bypass the seal, creating visible drips near the bell housing.
- Grinding noise during brake application: Excessive play in the shaft splines produces a metallic grinding sound when the brake is applied, often misdiagnosed as a worn differential.
- Sudden loss of parking brake holding force: A fractured or fatigued shaft cannot transmit full clamping force, causing the vehicle to roll on inclines.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 2093.129.014 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Overall Length | 185 mm (approx.) |
| Shaft Diameter (spline) | 32 mm |
| Weight | 1.45 kg |
| OEM Reference | ZF 2093.129.014 |
| Surface Hardness | 58-62 HRC |
Compatibility
This brake shaft is specifically designed for ZF WG-series transmissions, including the WG100, WG130, and WG131 models. It is also compatible with select WG180 and WG200 variants that share the same brake shaft geometry. Always verify the transmission serial number against ZF’s parts catalog before installation. This shaft works in conjunction with the 2099109042 DIFFERENTIAL and the 0750117075 TAPER ROLLER BEARING to maintain proper axial alignment. For complete brake assembly rebuilds, pair it with the 2093209094 DIFFERENTIAL and the 2093309078 DIFF.HOUSING to ensure concentricity and load distribution.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2099109042 | DIFFERENTIAL | Distributes torque between drive axles |
| 0750117075 | TAPER ROLLER BEARING | Supports radial and axial loads on shaft |
| 2093209094 | DIFFERENTIAL | Secondary differential for planetary gear set |
| 2093309078 | DIFF.HOUSING | Encloses differential gears and bearings |
| 0631100223 | SPRING PIN | Secures brake shaft to actuation lever |
| 0730300820 | THRUST WASHER | Controls axial clearance in brake pack |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to wheel axles |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential to final drive |
| 5838300811 | THRUST WASHER | Reduces friction in differential assembly |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Primary gear for torque splitting |
ZF 2093.129.014 BRAKE SHAFT – Shaft RFQ Support
For ZF 2093.129.014 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 2093.129.014 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: BRAKE SHAFT
- Illustration section: TRA 20
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 | 2093.129.014 |
|---|---|
| Normalized SKU | 2093129014 |
| 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
