Overview
The ZF 2093.211.004 AXLE FLARED TUBE is a precision-engineered hydraulic conduit designed to route pressurized oil within the final drive assembly of heavy-duty construction machinery. This OEM genuine part connects the axle housing to the differential carrier, ensuring uninterrupted lubrication flow to critical gear sets. As a structural fluid passage, the flared tube maintains consistent hydraulic pressure under extreme loads. The SKU 2093.211.004 is machined from high-tensile steel to resist vibration fatigue and corrosion in demanding environments. It sits directly between the axle housing and the 2093109021: DIFFERENTIAL, forming a sealed circuit that prevents contamination ingress.
Symptoms of Failure
- Hydraulic oil seepage at axle connection points: A worn flared tube often produces visible fluid trails near the differential housing, leading to gradual lubricant loss and increased operating temperatures.
- Intermittent gear whine during turns: When the tube cracks or deforms, pressure drops cause erratic lubrication to the 0750117075: TAPER ROLLER BEARING, resulting in audible distress from the final drive.
- Accelerated wear on differential components: Reduced oil flow forces the 2093209096: DIFFERENTIAL to operate under marginal lubrication, shortening service life.
- Visible corrosion or flaking on tube surface: Exposure to road salt and moisture can compromise the tube wall, leading to sudden rupture and total loss of hydraulic function.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2093.211.004 |
| Material | Seamless cold-drawn steel (DIN 2391) |
| Tube Outer Diameter | 18 mm |
| Tube Wall Thickness | 2.0 mm |
| Overall Length | 245 mm |
| Flare Type | 45° inverted flare (SAE J512) |
| Weight | 0.28 kg |
| OEM Reference | ZF 2093.211.004 |
| Surface Finish | Zinc-nickel plated (720 h salt spray) |
| Sealing Method | O-ring boss with backup washer |
Compatibility
This flared tube is engineered for ZF final drive assemblies commonly found in wheel loaders, graders, and telehandlers. It is a direct fit for the following transmission models: ZF WG180, ZF WG200, ZF WG210, and ZF WG310. The part also integrates with the 2093309073: DIFF.HOUSING used in these series. Always verify your axle serial number before ordering, as minor revisions exist between pre-2015 and post-2015 production runs.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109021 | DIFFERENTIAL | Distributes torque between axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports differential carrier rotation |
| 2093209096 | DIFFERENTIAL | Secondary torque distribution unit |
| 2093309073 | DIFF.HOUSING | Encloses differential gear set |
| 0631100223 | SPRING PIN | Secures tube alignment bracket |
| 0730300820 | THRUST WASHER | Controls axial play in differential |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to wheel hub |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential to wheel shaft |
| 5838300811 | THRUST WASHER | Reduces friction on bevel gear |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Primary gear for speed reduction |
Frequently Asked Questions
Q: Can I install this tube without replacing the O-rings?
A: No. The sealing surfaces on the 2093.211.004 are designed for single-use. Always install new O-rings and backup washers to prevent leaks.
Q: How do I identify if my WG200 uses this exact flared tube?
A: Measure the tube length between flare centers. If it measures 245 mm and has a 45° inverted flare, it matches this part. Cross-reference your axle housing casting number with the DIFF.HOUSING part 2093309073.
Q: What torque should I apply to the tube nut?
A: Tighten the flare nut to 35 N·m (25 ft-lb) for steel tubes. Over-torquing can distort the flare and cause leakage.
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