Overview
The ZF 2097.211.020 AXLE FLARED TUBE is a critical hydraulic and structural component engineered for heavy-duty construction machinery drivelines. This OEM genuine part serves as the pressurized conduit that delivers lubrication and cooling fluid directly to the axle assembly, while also providing a rigid mounting point for the differential housing. Located within the final drive section of the transmission, the flared tube ensures consistent oil flow to high-friction areas such as the 2093109021: DIFFERENTIAL and the 2093209096: DIFFERENTIAL assembly. Manufactured to ZF’s exacting tolerances, SKU 2097.211.020 is precision-formed from high-strength steel to resist fatigue under continuous high-pressure operation in excavators, loaders, and graders.
Symptoms of Failure
- Hydraulic fluid seepage at the axle flange: A worn or cracked flared tube allows pressurized oil to escape, leaving visible puddles beneath the machine after shutdown.
- Erratic gear engagement or slipping: Insufficient lubrication reaching the 0750117075: TAPER ROLLER BEARING causes increased friction and delayed clutch pack response.
- Abnormal whining or grinding from the axle area: Metal-on-metal contact due to oil starvation accelerates wear on the 2093309073: DIFF.HOUSING and internal gears.
- Overheating of the final drive: Restricted flow through a deformed tube leads to thermal buildup, often triggering dashboard warning lights on modern equipment.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2097.211.020 |
| Material | Seamless cold-drawn steel, zinc-nickel plated |
| Tube Outer Diameter | 22 mm (0.866 in) |
| Flare Angle | 45° SAE standard |
| Overall Length | 185 mm (7.28 in) |
| Weight | 0.34 kg (0.75 lbs) |
| OEM Reference | ZF 2097.211.020 |
| Thread Type | M18 x 1.5 metric |
| Max Operating Pressure | 25 bar (362 psi) |
Compatibility
This flared tube is designed for ZF’s heavy-duty powershift transmission series commonly used in construction machinery. It is a direct fit for the WG180, WG200, and WG210 models. Additionally, it is compatible with the 4WG-180 and 4WG-200 variants found in Volvo, Caterpillar, and Komatsu equipment. Always verify the tube routing against the original part before installation, as minor variations exist between early and late production runs of the 2093109021: DIFFERENTIAL housing.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109021 | DIFFERENTIAL | Distributes torque to axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports differential carrier rotation |
| 2093209096 | DIFFERENTIAL | Secondary torque distribution unit |
| 2093309073 | DIFF.HOUSING | Encloses differential gears and bearings |
| 0631100223 | SPRING PIN | Secures tube alignment in housing |
| 0730300820 | THRUST WASHER | Reduces axial play in differential |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to wheel hubs |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential to final drive |
| 5838300811 | THRUST WASHER | Prevents gear end-wear |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Primary gear mesh in differential |
Frequently Asked Questions
Q: Can I use a generic steel tube instead of the ZF 2097.211.020?
A: No. The OEM flared tube is precision-bent with a specific flare angle and thread pitch. Generic tubes lack the exact wall thickness and zinc-nickel corrosion resistance required for continuous high-pressure lubrication in construction machinery.
Q: How do I know if the flared tube is the source of my oil leak?
A: Inspect the area where the tube enters the differential housing. If oil is present around the flare nut and the tube shows visible cracks or deformation, replacement is necessary. A pressure test of the lubrication circuit can confirm internal blockage.
Q: Does this part include the mounting hardware?
A: The 2097.211.020 is sold as the tube only. We recommend replacing the copper crush washers and the 0631100223: SPRING PIN simultaneously to ensure a leak-free seal.
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Phone: +86 158 2286 3467 |
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