Overview
The ZF 2094.236.020 TUBE is a critical hydraulic fluid conduit engineered for the internal lubrication and cooling circuits within ZF heavy-duty construction machinery transmissions. This OEM genuine part channels pressurized oil to the differential assembly and axle bevel gear sets, ensuring consistent thermal regulation and component lubrication under extreme load conditions. The SKU 2094.236.020 designates a precision-formed steel tube with factory-specified bend radii and sealing surfaces, designed to withstand high cyclic pressures without deformation. It sits between the transmission valve body and the 2094109001: DIFFERENTIAL, forming a sealed oil passage that is essential for drivetrain longevity.
Symptoms of Failure
- Hydraulic oil seepage at tube connections: Cracks or fatigue in the tube body cause visible oil drips near the 2052209109: DIFFERENTIAL HOUSING, leading to low fluid levels and overheating.
- Intermittent gear engagement hesitation: Restricted oil flow through a collapsed or blocked tube results in delayed clutch pack actuation, particularly during cold starts.
- Whining noise from the axle area: Insufficient lubrication reaching the 2094209001: FLANGE bearings produces a high-pitched metallic sound under acceleration.
- Transmission temperature warning activation: A ruptured tube reduces oil circulation, causing rapid heat buildup in the differential housing and triggering dashboard alerts.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2094.236.020 |
| Material | Seamless cold-drawn steel (DIN 2391) |
| Overall Length | 285 mm ± 1.5 mm |
| Outer Diameter | 12.7 mm (0.5 inch) |
| Wall Thickness | 1.5 mm |
| Weight | 0.18 kg |
| OEM Reference | ZF 2094.236.020 |
| Seal Type | O-ring groove (both ends) |
Compatibility
This tube is designed for ZF WG-series powershift transmissions commonly used in wheel loaders, graders, and telehandlers. It is a direct fit for the following models: WG180, WG200, and WG211. The part also integrates with the 0731305002: GROOVED PIN used to secure the tube bracket to the transmission casing. Always verify the tube routing against your specific transmission serial number before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2094109001 | DIFFERENTIAL | Distributes torque to axle shafts |
| 2052209109 | DIFFERENTIAL HOUSING | Encloses differential gears |
| 2094209001 | FLANGE | Connects driveshaft to differential |
| 0731305002 | GROOVED PIN | Locks tube bracket in place |
| 2094309018 | AXLE BEVEL GEAR | Transfers power to wheel hubs |
| 2052309173 | AXLE BEVEL GEAR | Alternate ratio bevel gear |
| 2052309168 | DIFFERENTIAL BEVEL GEAR | Spider gear for differential action |
| 2052309169 | CROSS JOINT | Universal joint for axle articulation |
| 0735470087 | NEEDLE ROLLER | Bearing element for gear shafts |
| 0730104678 | THRUST WASHER | Axial load spacer for gears |
