Overview
The ZF 0501.333.902 COVER is a critical sealing and protective component engineered for heavy-duty construction machinery transmissions. This OEM genuine part sits on the exterior housing of the transmission assembly, providing a secure barrier against contaminants while maintaining internal oil pressure. The SKU 0501.333.902 is precision-machined to interface directly with the differential housing, ensuring proper alignment of internal gears and bearings. When installed alongside a 2093109024 DIFFERENTIAL, this cover prevents lubricant loss and structural flex under extreme torque loads.
Symptoms of Failure
- Transmission oil leaks at the rear housing — A worn or warped 0501.333.902 cover allows hydraulic fluid to seep past the gasket surface, often leaving puddles under parked equipment.
- Gear engagement hesitation or slipping — When the cover loses its seal, pressure drops within the differential cavity, causing delayed clutch pack engagement and erratic shifting.
- Metallic debris in transmission fluid — A cracked cover permits dirt ingress, accelerating wear on the 0750117075 TAPER ROLLER BEARING and adjacent components.
- Excessive vibration from the driveline — Loose mounting points on a degraded cover misalign the 2093209095 DIFFERENTIAL, creating harmonic oscillations at highway speeds.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0501.333.902 |
| Material | High-grade cast iron (GJL-250) |
| Outer Diameter | 285 mm |
| Bolt Hole Pattern | 8 x M12 on 240 mm PCD |
| Weight | 3.4 kg |
| OEM Reference | ZF 0501.333.902 |
| Surface Finish | Machined flatness ≤ 0.05 mm |
Compatibility
This cover is designed for ZF WG-series powershift transmissions commonly found in wheel loaders, graders, and excavators. It directly fits the WG180, WG200, and WG210 models. The 0501.333.902 also integrates with the 2093309071 DIFF.HOUSING assembly in certain off-highway truck applications. Always verify your transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109024 | DIFFERENTIAL | Distributes torque between drive axles |
| 0750117075 | TAPER ROLLER BEARING | Supports radial and axial loads on shafts |
| 2093209095 | DIFFERENTIAL | Secondary torque split unit |
| 2093309071 | DIFF.HOUSING | Encloses differential gear set |
| 0631100223 | SPRING PIN | Secures cover alignment dowels |
| 0730300820 | THRUST WASHER | Controls axial clearance in gear stack |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to wheel hubs |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential to final drive |
| 5838300811 | THRUST WASHER | Prevents gear face scoring |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Primary gear mesh for speed differentiation |
Frequently Asked Questions
Q: Can I reuse the old gasket when installing a new 0501.333.902 cover?
A: No. Always replace the gasket and clean the mating surface thoroughly. A reused gasket will compromise the seal and void any warranty on the cover.
Q: Does this cover require thread-locking compound on the bolts?
A: Yes. Apply medium-strength thread locker (Loctite 243 or equivalent) to all eight mounting bolts to prevent loosening from transmission vibration.
Q: How do I confirm this part fits my ZF WG200 transmission?
A: Check the casting number on your existing cover. If it matches 0501.333.902 and your transmission has a 240 mm bolt circle, it is a direct fit. For other models, consult the compatibility table above.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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