Overview
This ZF 5838.300.514 LUBRICATION TUBE is an OEM genuine part engineered to deliver pressurized oil precisely to the planetary gear sets and bearings within heavy-duty construction machinery transmissions. Positioned internally within the valve body and rotating clutch assembly, this tube ensures a continuous, metered flow of lubricant to critical friction surfaces. The SKU 5838.300.514 is a direct replacement for the original factory component, maintaining the exact flow path and pressure drop required for reliable transmission operation under high load conditions.
Symptoms of Failure
When the ZF 5838.300.514 lubrication tube wears or cracks, operators may notice erratic gear engagement during shifts, particularly under heavy load. A second common symptom is localized transmission overheating in the clutch housing area, often accompanied by a burnt oil smell. Third, intermittent low-pressure warnings on the dash can occur as the tube loses its seal. Finally, visible oil seepage around the transmission case near the tube mounting point is a clear indicator of failure.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 5838.300.514 |
| Material | Steel with anti-corrosion coating |
| Length | 185 mm (approx.) |
| Outer Diameter | 12 mm |
| Weight | 0.14 kg |
| OEM Reference | ZF 5838.300.514 |
| Thread Type | M10 x 1.5 |
Compatibility
This lubrication tube is designed for ZF WG180, WG200, and WG310 series transmissions commonly found in wheel loaders, graders, and excavators. It also fits select ZF 4WG-200 and 6WG-200 variants used in construction machinery from 2005 onward. Always verify your transmission serial number before ordering.
Related Components
This tube works in conjunction with the 5838109012: DIFFERENTIAL and the 0750117075: TAPER ROLLER BEARING to ensure proper oil distribution. The 2093209023: DIFFERENTIAL and 5838300626: DIFFERENTIAL HOUSING are also commonly replaced during the same service interval.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109012 | DIFFERENTIAL | Distributes torque to axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports rotating differential assembly |
| 2093209023 | DIFFERENTIAL | Secondary torque distribution unit |
| 5838300626 | DIFFERENTIAL HOUSING | Encloses differential gears |
| 0631329088 | SPRING PIN | Secures lubrication tube alignment |
| 5838300811 | THRUST WASHER | Reduces axial friction in gear sets |
| 5838300721 | AXLE BEVEL GEAR | Transfers power to wheel hubs |
| 5838300633 | AXLE | Connects differential to final drive |
| 5838300753 | THRUST WASHER | Controls axial play in planetary gears |
| 5838300818 | THRUST WASHER | Prevents gear-to-housing contact |
Frequently Asked Questions
Q: Can I reuse the old O-ring when installing the 5838.300.514 tube?
A: No. Always replace the O-ring seal (sold separately) to prevent oil bypass and ensure proper lubrication pressure.
Q: How often should this lubrication tube be inspected?
A: During every major transmission overhaul or at 2,000 operating hours in construction machinery. Visual inspection for cracks or deformation is recommended.
Q: Will this part fit a ZF 4WG-180 transmission?
A: Yes, the 5838.300.514 is compatible with 4WG-180, 4WG-200, and 6WG-200 series. Verify your transmission model plate for confirmation.
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