Overview
The ZF 0750.147.147 HOSE PIPE is a critical fluid transfer component engineered specifically for the WG 200 Series transmission. This OEM genuine part, identified by SKU 0750.147.147, routes pressurized hydraulic oil between the valve body and the cooler circuit within the transmission housing. By maintaining precise fluid flow, it ensures consistent clutch pack engagement and thermal regulation. When integrated with the 4644101176: TRANSMISSION HOUSING or the 4644301371: TRANSMISSION HOUSING, this hose pipe completes the internal lubrication network, preventing overheating and pressure drops during heavy-duty operation.
Symptoms of Failure
- Hydraulic oil seepage at the hose pipe connection points: Worn seals or cracked tubing allow ATF to escape, often leaving visible drips under the bell housing. This is a common indicator that the 0750.147.147 requires immediate replacement.
- Delayed gear engagement or slipping under load: A compromised hose pipe reduces line pressure, causing hesitation when shifting from neutral to drive or reverse. Operators may notice a “soft” shift feel during acceleration.
- Transmission overheating without external leaks: Internal hose pipe degradation can restrict fluid flow to the cooler, leading to elevated sump temperatures. This symptom often appears alongside erratic shift timing.
- Foaming or aerated transmission fluid on the dipstick: A cracked hose pipe introduces air into the hydraulic circuit, causing fluid to appear milky or bubbly. This accelerates wear on the 0634306525: O-RING and other sealing elements.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 0750.147.147 |
| OEM Reference | ZF 0750.147.147 |
| Material | Reinforced synthetic rubber with braided textile layer |
| Overall Length | Approx. 380 mm (14.96 in) |
| Inner Diameter | 12.7 mm (0.50 in) |
| Outer Diameter | 19.0 mm (0.75 in) |
| Weight | 0.18 kg (0.40 lbs) |
| Operating Pressure | Up to 12 bar (174 psi) |
| Temperature Range | -40°C to +135°C (-40°F to +275°F) |
Compatibility
This hose pipe is primarily designed for the ZF WG 200 Series, including the WG200, WG210, and WG220 variants. It also fits select WG180 models where the hydraulic circuit layout matches the 0750.147.147 routing profile. For proper installation, ensure the transmission housing is free of debris and that the 0730365067: TYPE PLATE confirms the exact model designation. The hose pipe connects directly to the cooler line ports, which are secured using the 0631311009: GROOVED STUD for vibration resistance. Always verify compatibility by cross-referencing the original part number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4644101176 | TRANSMISSION HOUSING | Encloses and supports all internal gear and hydraulic components |
| 4644301371 | TRANSMISSION HOUSING | Alternate housing variant for WG200 series applications |
| 0730365067 | TYPE PLATE | Identification plate with model and serial number data |
| 0631311009 | GROOVED STUD | Secures hose pipe and cooler line connections |
| 4644303060 | COVER PLATE | Seals the transmission housing access port |
| 4644201011 | COVER PLATE | Alternative cover plate for different housing configurations |
| 4644201010 | COVER PLATE | Standard cover plate for WG200 series |
| 4644301372 | COVER PLATE | Reinforced cover plate for high-pressure applications |
| 0636610028 | STUD | General-purpose mounting stud for transmission assembly |
| 0634306525 | O-RING | Seals fluid connections to prevent leaks |
