Overview
The ZF 0501.209.069 HOSE PIPE is a critical fluid transfer component engineered specifically for the WG 250 and WG 260 transmission series. This OEM genuine part channels pressurized hydraulic oil between the valve body and the clutch pack assembly, ensuring precise gear engagement and consistent lubrication under heavy-duty cycles. The SKU 0501.209.069 replaces worn or collapsed lines that can restrict flow, directly impacting shift quality. When installed alongside the 4646101028 TRANSMISSION HOUSING, this hose pipe maintains the sealed circuit necessary for reliable torque transmission in off-highway and industrial applications.
Symptoms of Failure
- Hydraulic oil seepage at the hose pipe connection points – Deteriorated rubber or cracked fittings cause visible fluid loss around the WG250 transmission housing, leading to low line pressure and erratic shifting.
- Delayed or harsh gear engagement – A collapsed or internally blocked 0501.209.069 restricts oil flow, resulting in sluggish clutch application and noticeable shudder during acceleration.
- Overheating transmission fluid – Restricted flow through the hose pipe reduces cooling circulation, causing the oil temperature to spike under load and accelerating wear on internal seals.
- Audible whining or cavitation noise – Air ingestion through a compromised hose pipe creates a high-pitched sound from the pump, indicating a loss of prime in the hydraulic circuit.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 0501.209.069 |
| Material | Reinforced synthetic rubber with braided textile layer |
| Inner Diameter | 12 mm (nominal) |
| Overall Length | 380 mm (center-to-center fitting) |
| Working Pressure | 18 bar (261 psi) max |
| Temperature Range | -40°C to +120°C |
| OEM Reference | ZF 0501.209.069 |
| Weight | 0.22 kg |
Compatibility
This hose pipe is a direct-fit component for ZF WG 250 and WG 260 series powershift transmissions. It also serves the WG 180, WG 200, and WG 210 models where the hydraulic routing shares the same port spacing. The 0501.209.069 interfaces with the 4646301095 HOUSING and the 4646301087 COVER to form a leak-proof assembly. For secure mounting, use the 0636015304 HEXAGON SCREW to fasten the pipe brackets to the transmission casing. Always verify the hose routing matches your specific transmission variant before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4646101028 | TRANSMISSION HOUSING | Encloses gear train and hydraulic valve body |
| 4646301095 | HOUSING | Supports clutch pack and oil distribution channels |
| 4646301087 | COVER | Seals the hydraulic control module |
| 0636015304 | HEXAGON SCREW | Fastens hose pipe brackets to housing |
| 0636101828 | CAP SCREW | Secures cover plate to transmission |
| 4646301102 | COVER SHEET | Protects internal wiring harness |
| 4646301098 | COVER SHEET | Shields hydraulic valve body |
| 0730365125 | TYPE PLATE | Displays transmission serial and model data |
| 0631311009 | GROOVED STUD | Aligns and locates housing components |
| 0636101193 | CAP SCREW | Attaches cover sheet to transmission |
Authorized ZF Distributor
We are a certified supplier of genuine ZF components.
