Overview
The ZF 0671.090.542 GEARBOX OIL is a high-viscosity, extreme-pressure lubricant engineered specifically for the internal gear train and bearing assemblies of ZF WG-series transmissions. This OEM genuine fluid sits within the main gearbox housing, providing a durable hydrodynamic film between meshing gear teeth and reducing frictional heat under heavy torque loads. Designed to maintain stable viscosity across a wide temperature range, the SKU 0671.090.542 ensures consistent lubrication for the differential and shaft components. For optimal drivetrain integrity, this oil works in concert with the 2093109003: DIFFERENTIAL and the 0750117075: TAPER ROLLER BEARING to distribute load evenly across rotating surfaces.
Symptoms of Failure
- Persistent gearbox oil leaks around the output shaft seal – When the lubricant degrades or the wrong viscosity is used, seals can harden and weep fluid, leaving visible drips under the transmission housing.
- Intermittent gear slipping under load – Worn or contaminated oil loses its film strength, causing the 2093209096: DIFFERENTIAL to momentarily lose traction during acceleration or hill climbs.
- Whining or grinding noise from the gearbox center – Insufficient lubrication leads to metal-on-metal contact, often audible as a high-pitched whine that intensifies with speed.
- Overheating of the transmission housing – Degraded oil fails to dissipate heat, causing the 2093309073: DIFF.HOUSING to become excessively hot to the touch during operation.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 0671.090.542 |
| Fluid Type | Synthetic GL-5 / GL-6 gear oil |
| Viscosity Grade | SAE 80W-90 |
| Container Volume | 1 liter (estimated) |
| Operating Temperature Range | -30°C to +120°C |
| Material Composition | Mineral base oil with EP additives |
| Net Weight | 0.95 kg |
| OEM Reference | ZF 0671.090.542 |
Compatibility
This gearbox oil is formulated for ZF WG-series transmissions, specifically the WG100, WG130, and WG131 models. It is also suitable for use in the differential cavities of WG180 and WG200 units when paired with the correct 4482360002: AXLE BEVEL GEAR and 2097309085: DIFFERENTIAL AXLE. Always verify the oil level using the dipstick or fill plug after installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109003 | DIFFERENTIAL | Distributes torque between drive wheels |
| 0750117075 | TAPER ROLLER BEARING | Supports axial and radial loads on shafts |
| 2093209096 | DIFFERENTIAL | Secondary torque-splitting unit |
| 2093309073 | DIFF.HOUSING | Encloses differential gears and oil |
| 0631100223 | SPRING PIN | Secures gear shift forks |
| 0730300820 | THRUST WASHER | Reduces axial end-play in gear stacks |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to axle shafts |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential to wheel hubs |
| 5838300811 | THRUST WASHER | Controls clearance in planetary sets |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Provides final gear reduction |
Frequently Asked Questions
Q: Can I use this oil in a ZF WG180 transmission?
A: Yes, the 0671.090.542 is compatible with WG180 units, but always confirm the fill capacity and check for any model-specific additive requirements in your service manual.
Q: How often should I replace the gearbox oil?
A: ZF recommends changing this oil every 1,000 operating hours or 12 months, whichever comes first. Severe duty cycles may require more frequent intervals.
Q: Is this oil suitable for limited-slip differentials?
A: This GL-5 rated oil is designed for conventional open differentials. If your unit uses a limited-slip clutch pack, verify compatibility with your differential assembly first.
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