Overview
The ZF 2093.247.051 TUBE is a genuine OEM hydraulic fluid conduit engineered for the lubrication and cooling circuits within heavy-duty ZF construction machinery transmissions. This precision-formed tube directs pressurized oil to critical bearing surfaces and gear meshes, ensuring consistent thermal regulation and friction reduction during high-torque operations. As a factory-spec component, the SKU 2093.247.051 guarantees exact fitment and material integrity, eliminating the risk of flow restriction or contamination that can occur with aftermarket substitutes. It sits within the lower valve body assembly, connecting the main pressure gallery to the differential housing lubrication port.
Symptoms of Failure
- Hydraulic oil seepage at transmission bell housing: A cracked or fatigued 2093.247.051 TUBE will allow ATF to weep past the crimped fittings, often mistaken for a main seal leak.
- Intermittent gear engagement hesitation: When the tube collapses internally or becomes blocked by debris, insufficient lubrication causes the clutch packs to drag, producing a delayed shift response under load.
- Elevated transmission operating temperature: Restricted oil flow through a deformed tube reduces heat exchange capacity, triggering the thermal bypass valve to open prematurely.
- Metallic whine from differential area: Starvation of the 2093109002: DIFFERENTIAL bearings due to tube failure generates a high-pitched noise that intensifies during cornering.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2093.247.051 |
| Material | Seamless cold-drawn steel, zinc-nickel plated |
| Overall Length | 312 mm (12.28 in) |
| Tube Outer Diameter | 12.7 mm (0.50 in) |
| Wall Thickness | 1.5 mm (0.059 in) |
| Weight | 0.18 kg (0.40 lbs) |
| OEM Reference | ZF 2093.247.051 |
| Burst Pressure Rating | 35 bar (507 psi) |
Compatibility
This genuine ZF tube is a direct replacement for transmissions in the WG180, WG200, and WG210 series, commonly found in wheel loaders, telehandlers, and graders. It interfaces specifically with the differential housing assembly where the 0750117075: TAPER ROLLER BEARING and 2093209095: DIFFERENTIAL carrier are mounted. Always verify the 2093309071: DIFF.HOUSING casting number to confirm fitment before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109002 | DIFFERENTIAL | Distributes torque to axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports differential carrier rotation |
| 2093209095 | DIFFERENTIAL | Secondary torque split assembly |
| 2093309071 | DIFF.HOUSING | Encloses differential gears |
| 0631100223 | SPRING PIN | Secures shift fork to rail |
| 0730300820 | THRUST WASHER | Controls axial play in gear sets |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to wheel hubs |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential to final drive |
| 5838300811 | THRUST WASHER | Reduces friction on planetary gears |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Spider gear for differential action |
Frequently Asked Questions
Q: Can a damaged 2093.247.051 tube cause the transmission to lose reverse gear?
A: Yes. Insufficient lubrication to the reverse clutch pack due to a blocked tube will cause clutch plate glazing and eventual loss of reverse engagement. Replace the tube immediately if oil flow is restricted.
Q: Is the 2093.247.051 tube interchangeable between WG180 and WG200 transmissions?
A: The tube is physically identical for both series, but always verify the routing clips differ. Use the part number 2093.247.051 for both applications; the mounting bracket orientation is identical.
Q: What torque should be applied to the banjo bolt on this tube?
A: Tighten the hollow bolt to 35 Nm (26 lb-ft) using a new copper washer. Over-torquing can distort the tube sealing face and cause persistent weeping.
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