Overview
The ZF 0501.207.963 HOSE PIPE is a critical fluid transfer component engineered specifically for the WG250 and WG260 transmission series. This OEM genuine part channels pressurized hydraulic oil between the valve body and the clutch pack assembly, ensuring precise lubrication and cooling within the gear train. As an original equipment manufacturer (OEM) component, the SKU 0501.207.963 guarantees exact fitment and material integrity, preventing contamination and maintaining the hydraulic circuit’s pressure curve. Without this hose pipe, the transmission cannot sustain proper clutch engagement or thermal regulation.
Symptoms of Failure
- Hydraulic oil seepage at the transmission housing joint: When the hose pipe degrades, fluid escapes around the connection points, often visible as dark streaks on the TRANSMISSION HOUSING.
- Erratic gear engagement under load: A compromised hose pipe reduces line pressure, causing delayed or harsh shifts, particularly in the WG260 series.
- Overheating during prolonged operation: Restricted fluid flow through a collapsed hose pipe leads to inadequate cooling, triggering thermal warnings.
- Audible whining or cavitation noise: Air ingress through a cracked hose pipe produces a high-pitched sound from the pump area.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0501.207.963 |
| Material | Reinforced synthetic rubber with braided textile |
| Inner Diameter | 12.7 mm (0.5 in) |
| Outer Diameter | 19.0 mm (0.75 in) |
| Length | 310 mm (12.2 in) |
| Weight | 0.18 kg (0.4 lb) |
| OEM Reference | ZF 0501.207.963 |
| Operating Pressure | 18-22 bar (260-320 psi) |
| Temperature Range | -40°C to +120°C |
Compatibility
This hose pipe is designed for ZF WG series powershift transmissions, primarily the WG250 and WG260 models. It also fits the WG180 and WG200 variants when used in conjunction with the correct HOUSING adapter. The part is not compatible with WG120 or WG150 series without additional modification. Always verify the COVER orientation and secure the assembly with the specified HEXAGON SCREW torque values.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4646101028 | TRANSMISSION HOUSING | Encloses gear train and hydraulic circuits |
| 4646301095 | HOUSING | Supports valve body and oil channels |
| 4646301087 | COVER | Seals the clutch pack access port |
| 0636015304 | HEXAGON SCREW | Fastens cover to housing |
| 0636101828 | CAP SCREW | Secures hose pipe fittings |
| 4646301102 | COVER SHEET | Protects internal components from debris |
| 4646301098 | COVER SHEET | Secondary sealing layer for oil retention |
| 0730365125 | TYPE PLATE | Identifies transmission model and serial number |
| 0631311009 | GROOVED STUD | Aligns and positions the housing assembly |
| 0636101193 | CAP SCREW | Mounts the cover sheet to the housing |
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