Overview
This OEM Genuine ZF 2093.078.042 T 7226 L is a critical internal component designed for heavy-duty construction machinery transmissions. It functions as a precision-machined shaft or gear carrier within the planetary gear set, ensuring smooth torque transfer and load distribution across the drivetrain. The SKU 2093.078.042 is engineered to exact OEM tolerances, making it a direct replacement for worn units in ZF power shift transmissions. When installed, this part works in concert with the 2093109024 DIFFERENTIAL and the 2093209095 DIFFERENTIAL to maintain proper gear mesh alignment and prevent premature wear on adjacent assemblies.
Symptoms of Failure
When the ZF 2093.078.042 begins to fail, operators often notice distinct performance degradation. Look for these specific failure indicators:
- Transmission gear slipping under load: Worn splines or bearing surfaces cause intermittent power loss, especially when climbing grades or carrying heavy loads.
- Metallic grinding noise from the differential housing: This indicates excessive play between the part and the 2093309071 DIFF.HOUSING, often accompanied by debris in the oil.
- Oil leaks near the transmission output flange: Degraded sealing surfaces allow hydraulic fluid to escape, leading to low pressure and erratic shifting.
- Vibration during low-speed maneuvering: Imbalanced rotation from a worn 2093.078.042 creates driveline shudder that worsens over time.
Technical Specifications
| Part Number | 2093.078.042 |
| OEM Reference | ZF T 7226 L |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Weight | 3.8 kg (8.4 lbs) |
| Outer Diameter | 142 mm |
| Length | 215 mm |
| Hardness | 58-62 HRC (surface) |
| Torque Capacity | 4,500 Nm (estimated) |
Compatibility
This genuine ZF part is primarily used in the WG180 and WG200 series power shift transmissions found in wheel loaders, graders, and compactors. It also fits select ZF 4WG-200 and 6WG-200 models from the early 2000s. For proper installation, always pair this component with a new 0750117075 TAPER ROLLER BEARING to ensure correct preload and axial clearance. Verify your transmission serial number against ZF application charts before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109024 | DIFFERENTIAL | Distributes torque between drive wheels |
| 0750117075 | TAPER ROLLER BEARING | Supports axial and radial loads on shaft |
| 2093209095 | DIFFERENTIAL | Secondary torque split unit |
| 2093309071 | DIFF.HOUSING | Encloses differential gears |
| 0631100223 | SPRING PIN | Secures gear alignment |
| 0730300820 | THRUST WASHER | Controls axial end-play |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to axle shaft |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential to wheel hub |
| 5838300811 | THRUST WASHER | Reduces friction on gear faces |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Primary gear mesh in differential |
Frequently Asked Questions
Q: Can I replace just the 2093.078.042 without changing the differential housing?
A: Yes, but only if the 2093309071 DIFF.HOUSING shows no scoring or ovalization. Always inspect the housing bore with a micrometer before reassembly.
Q: What is the typical service life of this part in a wheel loader?
A: Under normal conditions with proper lubrication, the 2093.078.042 lasts 6,000-8,000 hours. Heavy shock loading or contaminated oil can reduce this to 3,000 hours.
Q: Does this part require special tools for installation?
A> A hydraulic press and a bearing puller are recommended. The 0750117075 TAPER ROLLER BEARING must be pressed onto the shaft with the correct interference fit to avoid spinning on the journal.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
Request a Quote →
