Overview
The ZF 2093.159.024 LASTSCHALTGR is a genuine OEM load gear assembly designed for heavy-duty construction machinery transmissions. This critical component sits within the planetary gear set of ZF’s powershift transmissions, managing torque distribution during load shifts. As a high-wear part, the SKU 2093.159.024 ensures precise engagement of gear ratios under extreme operational stress. It works in concert with the 2093109001: DIFFERENTIAL to balance power delivery to the drive axles, while the 0750117075: TAPER ROLLER BEARING supports rotational stability within the same assembly.
Symptoms of Failure
- Delayed or harsh gear engagement — When the LASTSCHALTGR wears, operators notice a lag or jarring shift between forward and reverse gears, especially under load.
- Metallic grinding noise during shifting — Worn load gear teeth produce a distinct grinding sound, often mistaken for differential failure, but originating from the gear cluster itself.
- Transmission fluid contamination with metal particles — Debris from the failing gear circulates through the system, often detected during routine oil analysis or when draining the sump.
- Intermittent power loss under load — The gear slips momentarily when climbing grades or moving heavy materials, causing a sudden drop in tractive effort.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 2093.159.024 |
| Type | LASTSCHALTGR (Load Gear Assembly) |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Weight | 4.2 kg (9.3 lbs) |
| Outer Diameter | 185 mm |
| Inner Diameter | 65 mm |
| Tooth Count | 32 (internal spline) |
| OEM Reference | ZF 2093.159.024 |
| Hardness | 58-62 HRC |
Compatibility
This genuine ZF load gear is primarily used in the WG180 and WG200 series powershift transmissions, commonly found in wheel loaders, telehandlers, and excavators from manufacturers like Liebherr, Volvo, and Caterpillar. It also fits select models of the ZF 4WG-180 and 4WG-200 transmissions. For proper installation, pair this part with the 2093209095: DIFFERENTIAL and the 2093309071: DIFF.HOUSING to ensure correct alignment within the final drive assembly.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109001 | DIFFERENTIAL | Distributes torque between left and right axles |
| 0750117075 | TAPER ROLLER BEARING | Supports axial and radial loads on gear shafts |
| 2093209095 | DIFFERENTIAL | Secondary differential for planetary gear sets |
| 2093309071 | DIFF.HOUSING | Encloses and supports differential gears |
| 0631100223 | SPRING PIN | Secures gear alignment during assembly |
| 0730300820 | THRUST WASHER | Reduces axial friction between rotating gears |
| 4482360002 | AXLE BEVEL GEAR | Transfers power from differential to axle shafts |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential to wheel hubs |
| 5838300811 | THRUST WASHER | Prevents gear end-play in load gear assembly |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Primary gear for torque splitting in differential |
Frequently Asked Questions
Q: Can I replace the ZF 2093.159.024 without removing the entire transmission?
A: Yes, in most WG180/WG200 models, the load gear is accessible after removing the differential cover and the 2093309071: DIFF.HOUSING. However, professional disassembly is recommended to avoid damaging adjacent seals.
Q: How do I verify if my 2093.159.024 is genuine OEM?
A: Genuine ZF parts have a laser-etched part number on the gear face and a matte finish. Counterfeits often show rough machining marks. Always cross-reference with the 2093109001: DIFFERENTIAL for matching wear patterns.
Q: What is the typical service life of this load gear in a wheel loader?
A: Under normal operating conditions (8-10 hours daily), the LASTSCHALTGR lasts approximately 4,000-6,000 hours. Early replacement is advised if metal particles appear in the transmission oil, as this can damage the 0750117075: TAPER ROLLER BEARING.
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Phone: +86 158 2286 3467 |
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