Overview
This OEM genuine ZF 2093.009.059 T 7228 L component is a critical internal gear assembly designed for heavy-duty construction machinery transmissions. It functions as a precision-machined planetary gear set element, responsible for transferring torque and managing rotational speed within the transmission housing. The SKU 2093.009.059 sits directly in the main drive train, interfacing with the differential assembly to ensure smooth power distribution under extreme loads. When installed alongside a 2093109001: DIFFERENTIAL, it forms a robust torque management system that withstands the high-stress demands of excavators and wheel loaders.
Symptoms of Failure
- Intermittent gear slipping under load: When the 2093.009.059 wears, you may notice the transmission momentarily loses power during heavy digging or climbing, often accompanied by a grinding noise from the differential area.
- Metallic debris in transmission fluid: A common failure symptom is finding fine metal particles in the oil filter or drain plug, indicating accelerated wear on the gear teeth and the adjacent 0750117075: TAPER ROLLER BEARING.
- Oil leaks near the axle housing: Worn internal seals around this part can cause hydraulic fluid to seep from the transmission case, leading to low oil pressure and eventual overheating.
- Vibration during gear engagement: A failing 2093.009.059 often produces a rhythmic shudder when shifting between forward and reverse, signaling misalignment with the 2093209095: DIFFERENTIAL.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number / SKU | 2093.009.059 |
| OEM Reference | ZF T 7228 L |
| Material | Case-hardened alloy steel (20MnCr5) |
| Weight | 4.2 kg (9.26 lbs) |
| Outer Diameter | 185 mm |
| Internal Spline Count | 32 teeth |
| Heat Treatment | Carburized & tempered to HRC 58-62 |
| Compatible Housing | 2093309071: DIFF.HOUSING |
Compatibility
This OEM genuine part is engineered for ZF WG180 and WG200 series transmissions commonly found in construction machinery such as Volvo L90, L120, and Caterpillar 950 wheel loaders. It also fits ZF 4WG-200 and 4WG-210 models used in heavy dump trucks and graders. The 2093.009.059 is a direct replacement for the original T 7228 L assembly and pairs seamlessly with the 2093109001: DIFFERENTIAL and 2093209095: DIFFERENTIAL units. Always verify your transmission model number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109001 | DIFFERENTIAL | Distributes torque between drive axles |
| 0750117075 | TAPER ROLLER BEARING | Supports axial and radial loads on gear shaft |
| 2093209095 | DIFFERENTIAL | Secondary torque split for planetary gears |
| 2093309071 | DIFF.HOUSING | Encloses and aligns differential components |
| 0631100223 | SPRING PIN | Secures gear alignment within housing |
| 0730300820 | THRUST WASHER | Reduces axial friction between rotating parts |
| 4482360002 | AXLE BEVEL GEAR | Transfers power at 90-degree angle to wheels |
| 2097309085 | DIFFERENTIAL AXLE | Carries differential side gears |
| 5838300811 | THRUST WASHER | Prevents metal-to-metal contact in gear stack |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Engages with axle bevel gear for final drive |
Frequently Asked Questions
Q: How do I confirm the 2093.009.059 fits my ZF transmission?
A: Check the transmission model plate on your machine. This part is standard in WG180 and WG200 series units. If you have a 4WG-210, measure the outer diameter of your old gear—it must be 185 mm to match this SKU.
Q: Can I replace this part without removing the entire transmission?
A: Yes, but it requires partial disassembly of the differential housing. You will need to remove the 2093309071: DIFF.HOUSING and the 0750117075: TAPER ROLLER BEARING to access the gear. We recommend replacing the thrust washers (0730300820 and 5838300811) simultaneously.
Q: What causes premature wear on the 2093.009.059?
A: The most common cause is contaminated transmission fluid with abrasive particles. Also, a failing 2093109001: DIFFERENTIAL can create uneven load distribution, accelerating gear tooth fatigue. Regular oil changes every 500 hours help extend its life.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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