Overview
The ZF 5838.300.714 AXLE FLARED TUBE is a critical hydraulic and lubrication conduit engineered for heavy-duty construction machinery transmissions. This OEM genuine part channels pressurized oil between the axle housing and the differential assembly, ensuring consistent cooling and lubrication of internal gears under extreme loads. Positioned directly within the final drive housing, the flared tube design creates a leak-proof seal that withstands high-pressure spikes during excavation and loading operations. The SKU 5838.300.714 is precision-formed to match ZF’s exacting tolerances, making it a direct replacement for worn or damaged tubes in your transmission system.
Symptoms of Failure
- Hydraulic oil seepage around axle housing: A cracked or corroded flared tube often causes slow oil drips near the differential mounting point, leading to low fluid levels and eventual gear damage.
- Erratic gear engagement under load: When the tube fails to deliver adequate lubrication, the transmission may slip or hesitate during shifting, especially in high-torque applications like dozing or grading.
- Overheating of the final drive assembly: Restricted oil flow from a blocked or deformed tube results in elevated operating temperatures, detectable by burnt oil smell or thermal discoloration on nearby components.
- Contaminated transmission fluid: A fractured tube can allow debris or moisture into the hydraulic circuit, causing premature wear on bearings and gears throughout the drivetrain.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 5838.300.714 |
| Material | Seamless steel with zinc-nickel plating |
| Overall Length | 185 mm (estimated) |
| Tube Outer Diameter | 12 mm |
| Flare Type | 37° SAE inverted flare |
| Weight | 0.28 kg |
| OEM Reference | ZF 5838.300.714 |
| Thread Size | M14 x 1.5 (both ends) |
Compatibility
This flared tube is designed for ZF’s WG180 and WG200 series transmissions commonly used in wheel loaders, excavators, and telehandlers. It also fits select models in the ZF 4WG-200 and 6WG-200 families. For optimal performance, always pair this tube with a new 0631329088: SPRING PIN to secure the connection. When servicing the axle, inspect the 5838109019: DIFFERENTIAL and 2093209024: DIFFERENTIAL for wear, as these components share the same lubrication circuit. Additionally, verify the condition of the 0750117075: TAPER ROLLER BEARING to prevent premature failure of the new tube.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109019 | DIFFERENTIAL | Distributes torque to axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports rotating axle loads |
| 2093209024 | DIFFERENTIAL | Secondary differential for planetary drives |
| 0631329088 | SPRING PIN | Secures tube connections |
| 5838300811 | THRUST WASHER | Reduces axial friction in differential |
| 5838300721 | AXLE BEVEL GEAR | Transfers power to wheel hubs |
| 5838300633 | AXLE | Main load-bearing shaft |
| 5838300753 | THRUST WASHER | Controls gear end-play |
| 5838300818 | THRUST WASHER | Differential side clearance |
| 5838300724 | DIFFERENTIAL HOUSING | Encloses gear set |
