Overview
The ZF 2093.159.030 LASTSCHALTGR is an OEM genuine load shift gear assembly engineered for heavy-duty construction machinery transmissions. This critical component manages torque distribution during gear changes, ensuring smooth power transfer under extreme operational loads. Positioned within the planetary gear set of ZF’s modular transmission systems, the SKU 2093.159.030 directly interfaces with the differential housing to synchronize rotational speeds. As a genuine ZF part, it guarantees factory-specified tolerances for durability in excavators, wheel loaders, and graders. When paired with a 2093109002: DIFFERENTIAL, this assembly forms the backbone of the driveline’s load-holding capability.
Symptoms of Failure
- Delayed or harsh gear engagement – Worn load shift gear teeth cause hesitation when shifting between forward and reverse, often accompanied by a metallic grinding noise.
- Transmission oil leaks near the shift housing – Degraded seals on the 2093.159.030 allow hydraulic fluid to escape, leaving visible puddles under the machinery.
- Intermittent power loss under load – A failing LASTSCHALTGR slips during high-torque operations, such as climbing grades or lifting heavy materials.
- Unusual vibration in neutral – Internal bearing wear within the gear set creates low-frequency shaking even when the transmission is disengaged.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2093.159.030 |
| Type | LASTSCHALTGR (Load Shift Gear) |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Weight | 4.2 kg (9.26 lbs) |
| Outer Diameter | 185 mm |
| Inner Spline Diameter | 42 mm |
| OEM Reference | ZF 2093.159.030 |
| Heat Treatment | Carburized & tempered to HRC 58-62 |
| Related Parts | 0631100223: SPRING PIN, 0730300820: THRUST WASHER, 4482360002: AXLE BEVEL GEAR |
Compatibility
This genuine ZF load shift gear is designed for integration into the following transmission families commonly used in construction machinery: ZF WG180, ZF WG200, and ZF WG211 series. It also fits select ZF Ergopower and ZF Ecolite models where the shift mechanism uses a 42mm splined input. For optimal performance, always replace the 0750117075: TAPER ROLLER BEARING and inspect the 2093209095: DIFFERENTIAL assembly when servicing the 2093.159.030. The gear also mates directly with the 2093309071: DIFF.HOUSING to maintain correct axial clearance.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109002 | DIFFERENTIAL | Distributes torque between drive wheels |
| 0750117075 | TAPER ROLLER BEARING | Supports axial and radial loads on gear shafts |
| 2093209095 | DIFFERENTIAL | Secondary differential for planetary reduction |
| 2093309071 | DIFF.HOUSING | Encloses differential gears and bearings |
| 0631100223 | SPRING PIN | Secures shift fork to actuator rod |
| 0730300820 | THRUST WASHER | Controls axial play in gear stack |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to final drive axle |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential to wheel hub |
| 5838300811 | THRUST WASHER | Reduces friction in differential assembly |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Provides speed differentiation between wheels |
Frequently Asked Questions
Q: How do I confirm the 2093.159.030 fits my ZF WG200 transmission?
A: Verify the spline count (typically 24 teeth) and measure the gear’s outer diameter. The 2093.159.030 is a direct replacement for all WG180, WG200, and WG211 variants with a 42mm input shaft.
Q: Can I reuse the old thrust washers when installing this load shift gear?
A: No. Always install new 0730300820: THRUST WASHER and 5838300811: THRUST WASHER components to maintain proper end-play and prevent premature gear failure.
Q: What torque specification applies to the retaining nut on this gear?
A: ZF specifies 180 Nm (133 ft-lbs) for the lock nut, using thread-locking compound. Refer to the service manual for your specific transmission model.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
Request a Quote →
