Overview
The ZF 0750.147.080 HOSE PIPE is a critical fluid transfer component engineered specifically for the WG 65 Series transmission. This OEM genuine part channels pressurized hydraulic oil between the valve body and the cooler circuit, ensuring consistent lubrication and thermal regulation during heavy-duty operation. As a direct-fit replacement, the SKU 0750.147.080 eliminates guesswork in maintenance schedules, restoring factory-specified flow rates and preventing contamination ingress. Its reinforced construction withstands the high cyclic pressures common in construction and mining equipment, making it indispensable for maintaining transmission integrity.
Symptoms of Failure
- External hydraulic oil leaks near the cooler lines: A cracked or swollen 0750.147.080 hose pipe often produces visible drips or wet spots around the transmission housing, leading to gradual fluid loss.
- Erratic gear engagement or delayed shifting: Reduced internal pressure from a compromised hose pipe starves the clutch packs, causing hesitation or harsh shifts during load changes.
- Overheating transmission fluid: Restricted flow through a collapsed hose pipe prevents adequate cooling, triggering temperature warnings and accelerating seal degradation.
- Contaminated oil with debris: Internal hose lining deterioration introduces rubber particles into the circuit, clogging downstream filters and valve orifices.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0750.147.080 |
| Material | Reinforced synthetic rubber with textile braid |
| Inside Diameter | 19 mm (0.75 in) |
| Outside Diameter | 28 mm (1.10 in) |
| Length | 380 mm (14.96 in) |
| Operating Pressure | 12 bar (174 psi) max |
| Temperature Range | -40°C to +120°C (-40°F to +248°F) |
| Weight | 0.35 kg (0.77 lb) |
| OEM Reference | ZF 0750.147.080 |
Compatibility
This hose pipe is primarily designed for the WG 65 Series transmission family, which includes models such as WG65, WG80, and WG100. It also fits select variants of the WG120 and WG150 where the cooler circuit routing matches the original configuration. Always verify the hose routing against your specific transmission serial number, as later revisions of the TRANSMISSION HOUSING may require updated pipe lengths. For installations involving the OUTPUT shaft assembly, ensure the hose does not contact the OUTPUT FLANGE during articulation. Secure the pipe using the HEXAGON SCREW provided in the mounting kit to prevent vibration fatigue.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616105413 | OUTPUT | Transfers torque from planetary gears to driveline |
| 4616203017 | OUTPUT FLANGE | Connects output shaft to universal joint |
| 4616101117 | TRANSMISSION HOUSING | Encloses gear train and oil sump |
| 0636011038 | HEXAGON SCREW | Secures hose pipe bracket to housing |
| 0636016015 | HEXAGON SCREW | Fastens cooler line adapter plate |
| 0631306085 | CYLINDRICAL PIN | Aligns hose routing bracket |
| 0634313118 | O-RING | Seals hose-to-cooler connection |
| 0732611049 | FILTER INSERT | Traps debris from hose degradation |
| 0634303718 | O-RING | Seals hose-to-valve body interface |
| 0636610082 | STUD | Positions cooler line bracket |
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