Overview
The ZF 2093.247.055 TUBE is an OEM genuine hydraulic fluid conduit engineered for precise oil routing within heavy-duty construction machinery transmissions. This component sits between the main valve body and the clutch pack assembly, ensuring consistent lubrication pressure during high-torque operations. As a critical flow path element, the SKU 2093.247.055 maintains structural integrity under extreme thermal cycling and vibration loads common in earthmoving equipment.
Symptoms of Failure
- External oil seepage at tube junctions – Worn sealing surfaces cause visible fluid loss around the connection points, often mistaken for gasket failure.
- Delayed gear engagement under load – Reduced hydraulic pressure from a cracked or deformed tube leads to sluggish clutch pack activation during excavation cycles.
- Erratic transmission temperature spikes – Restricted oil flow through a damaged tube forces the system to overwork, triggering thermal warnings on the operator display.
- Metallic debris in transmission fluid – Internal tube wall erosion sheds microscopic particles that contaminate the hydraulic circuit, accelerating wear on adjacent components.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2093.247.055 |
| Material | Seamless cold-drawn steel (DIN 2391) |
| Length | 215 mm |
| Outer Diameter | 18 mm |
| Wall Thickness | 2.5 mm |
| Weight | 0.34 kg |
| OEM Reference | ZF 2093.247.055 |
| Surface Treatment | Zinc-nickel plated (ISO 9227) |
Compatibility
This tube is engineered for ZF WG180, WG200, and WG310 series powershift transmissions used in wheel loaders, graders, and excavators. It directly interfaces with the 2093101025 HOUSING and the 2093301031 TRANSMISSION HOUSING to form a sealed hydraulic circuit. Always verify the 0730365092 TYPE PLATE on your transmission to confirm model year compatibility. The tube is secured using a 4475280013 SCREW PLUG at the pressure test port.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093101025 | HOUSING | Encloses valve body and tube assembly |
| 2093301031 | TRANSMISSION HOUSING | Main structural casing for gear sets |
| 0730365092 | TYPE PLATE | Identification tag with transmission specs |
| 4475280013 | SCREW PLUG | Seals hydraulic test port |
| 2093301021 | GASKET | Prevents fluid leaks at mating surfaces |
| 2093301033 | COVER | Protects internal components from debris |
| 0636015073 | HEXAGON SCREW | Fastens tube brackets to housing |
| 0634314235 | O-RING | Creates hydraulic seal at tube ends |
| 0501337897 | SPEED SENSOR | Monitors output shaft RPM |
| 0636101026 | CAP SCREW | Secures sensor bracket to housing |
Frequently Asked Questions
Q: Can the 2093.247.055 tube be repaired if bent during removal?
A: No. This precision-formed tube must be replaced if deformed. Attempting to straighten it creates stress fractures that lead to sudden hydraulic failure under pressure.
Q: Does this tube require a specific torque when installing the screw plug?
A: Yes. The 4475280013 SCREW PLUG must be torqued to 35 Nm using a calibrated wrench to prevent thread galling in the aluminum housing.
Q: How often should the tube be inspected during transmission overhauls?
A: Inspect the tube every 2,000 operating hours or during any clutch pack replacement. Look for scoring on the outer diameter where it contacts the 2093101025 HOUSING.
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