Overview
The ZF 0750.147.041 HOSE PIPE is a critical fluid transfer component engineered for the WG181 and WG201 transmission series. This OEM genuine part channels pressurized hydraulic oil between the valve body and the cooler circuit, ensuring consistent lubrication and thermal regulation within the gearbox. The SKU 0750.147.041 designates a reinforced hose assembly that withstands high-temperature oil flow and vibration stress. When installed correctly, it maintains the precise fluid pressure required for smooth clutch engagement and torque converter lock-up. This hose pipe interfaces directly with the 4644101203: TRANSMISSION HOUSING and the 4644301382: TRANSMISSION HOUSING, forming a sealed hydraulic circuit that prevents contamination ingress.
Symptoms of Failure
- External hydraulic oil leaks near the cooler lines: A cracked or swollen hose pipe causes visible fluid drips under the transmission, often mistaken for a pan gasket failure.
- Erratic gear engagement or delayed shifts: Reduced line pressure from a compromised hose leads to soft shifts or hesitation when moving from neutral to drive.
- Overheating transmission fluid: Restricted flow through a collapsed hose pipe reduces cooler circulation, triggering high-temperature warnings on the dashboard.
- Air ingestion into the hydraulic system: A porous hose allows air bubbles to enter the oil, producing a foamy appearance on the dipstick and causing clutch chatter.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0750.147.041 |
| Material | Reinforced synthetic rubber with textile braid |
| Overall Length | 380 mm (estimated) |
| Inner Diameter | 12 mm |
| Outer Diameter | 20 mm |
| Weight | 0.18 kg |
| OEM Reference | ZF 0750.147.041 |
| Operating Pressure | Up to 18 bar |
| Temperature Range | -40°C to +150°C |
Compatibility
This hose pipe is specifically designed for the ZF WG181 and WG201 series transmissions, including the WG180, WG181, WG200, and WG201 variants. It is a direct replacement for original equipment in off-highway vehicles, construction machinery, and agricultural equipment. The part also fits select ZF Ecomat 4HP and 5HP models when used with the 4644301189: THREADED BUSH and 0636302005: SCREW PLUG for secure mounting. Always verify the hose routing against your transmission housing casting number before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4644101203 | TRANSMISSION HOUSING | Main structural casing for gear and valve body assembly |
| 4644301382 | TRANSMISSION HOUSING | Alternative housing variant for WG200 series |
| 4644301189 | THREADED BUSH | Provides threaded anchor point for hose pipe fittings |
| 0636302005 | SCREW PLUG | Seals unused ports in the housing |
| 0634306198 | O-RING | Creates leak-proof seal at hose connection points |
| 0634801098 | SEALING RING | Prevents fluid bypass at threaded interfaces |
| 0730365067 | TYPE PLATE | Identification label for transmission model |
| 0631311009 | GROOVED STUD | Alignment pin for housing assembly |
| 4644301161 | COVER PLATE | Protects internal components from debris |
| 0636100621 | HEXAGON SCREW | Fastens cover plate and housing sections |
