Overview
The ZF 0750.147.162 HOSE PIPE is a critical fluid transfer component engineered specifically for the WG 200 Series transmission. This OEM genuine part directs pressurized hydraulic oil between the valve body and the cooler circuit, ensuring consistent lubrication and thermal regulation within the gearbox. As a direct replacement for the SKU 0750.147.162, this hose pipe maintains factory-specified flow rates and pressure tolerances, preventing cavitation and overheating. It integrates seamlessly with the 4644101176: TRANSMISSION HOUSING and the 4644301371: TRANSMISSION HOUSING to form a leak-proof hydraulic circuit.
Symptoms of Failure
- Hydraulic fluid seepage at the cooler line connection: A worn or cracked 0750.147.162 hose pipe often produces visible oil drips near the transmission housing, leading to low fluid levels and erratic shifting.
- Delayed engagement or gear slipping under load: When internal hose degradation restricts oil flow, the WG200 transmission may hesitate when shifting from neutral to drive, or slip during uphill climbs.
- Overheating transmission with burnt fluid odor: A collapsed or blocked hose pipe reduces cooler circulation, causing the transmission to run hot and produce a distinct burnt smell from degraded ATF.
- Audible whining or pump cavitation noise: Air ingress through a compromised hose pipe creates a high-pitched whine from the oil pump, especially during cold starts or low-speed operation.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 0750.147.162 |
| OEM Reference | ZF 0750.147.162 |
| Material | Reinforced synthetic rubber with braided textile |
| Inner Diameter | 12.7 mm (0.5 in) |
| Overall Length | 410 mm |
| Working Pressure | 18 bar (261 psi) |
| Temperature Range | -40°C to +150°C |
| Weight | 0.28 kg |
Compatibility
This ZF 0750.147.162 HOSE PIPE is primarily designed for the WG 200 Series transmissions, including models WG200, WG180, and WG150 variants used in medium-duty trucks and construction equipment. It also fits select WG120 units with external cooler circuits. The hose pipe connects directly to the 0730365067: TYPE PLATE identification area and is secured by the 0631311009: GROOVED STUD on the housing flange. Always verify your transmission serial number against the OEM parts catalog before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4644101176 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4644301371 | TRANSMISSION HOUSING | Rear housing section for output shaft |
| 0730365067 | TYPE PLATE | Identification tag with transmission specs |
| 0631311009 | GROOVED STUD | Fastener for hose pipe bracket |
| 4644303060 | COVER PLATE | Seals access port on housing |
| 4644201011 | COVER PLATE | Protects valve body area |
| 4644201010 | COVER PLATE | Lower pan cover for oil sump |
| 4644301372 | COVER PLATE | Rear seal plate for output flange |
| 0636610028 | STUD | Threaded rod for housing assembly |
| 0634306525 | O-RING | Seal for hose pipe connection |
