Overview
The ZF 0750.147.240 HOSE PIPE is a critical fluid routing component engineered specifically for the WG 150 Series transmission. This OEM genuine part channels hydraulic oil between the valve body and the cooler circuit, ensuring consistent lubrication and thermal regulation under heavy-duty cycles. The SKU 0750.147.240 is precision-molded to withstand high-pressure surges and temperature extremes, directly supporting the shift quality and durability of the transmission assembly. When installed alongside the TRANSMISSION HOUSING (4642101109) or the TRANSMISSION HOUSING (4642301205), this hose pipe maintains the sealed integrity of the hydraulic circuit, preventing contamination and pressure loss.
Symptoms of Failure
- Hydraulic oil seepage at the hose pipe connection: Visible fluid accumulation around the WG150’s cooler line ports often indicates a cracked or swollen 0750.147.240 hose pipe, leading to gradual fluid loss and reduced line pressure.
- Erratic gear engagement or delayed shifts: A compromised hose pipe restricts oil flow to the clutch packs, causing hesitation or harsh engagement during acceleration—a common symptom of internal hose collapse.
- Overheating transmission fluid: When the hose pipe fails to deliver adequate flow to the cooler, the transmission runs hotter than normal, triggering warning lights or burnt fluid odor.
- Whining noise from the pump circuit: Air ingestion through a deteriorated hose pipe creates cavitation noise, often accompanied by a drop in system pressure.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0750.147.240 |
| Material | Reinforced synthetic rubber with textile braid |
| Inner Diameter | 12.7 mm (0.5 in) |
| Outer Diameter | 21.3 mm (0.84 in) |
| Length | 240 mm (9.45 in) |
| Weight | 0.12 kg (0.26 lb) |
| OEM Reference | ZF 0750.147.240 |
| Operating Pressure | Up to 15 bar (218 psi) |
| Temperature Range | -40°C to +150°C (-40°F to +302°F) |
Compatibility
This hose pipe is primarily designed for the ZF WG 150 Series, but it also fits select variants of the WG 180 and WG 200 transmissions where the cooler line routing matches the 240 mm length. The part is interchangeable with earlier WG 120 models that use the same banjo fitting configuration. For proper installation, ensure the TYPE PLATE (0730365125) is legible to confirm your transmission’s series, and verify that the GROOVED STUD (0631311009) securing the hose pipe is torqued to factory specifications. Always cross-reference your existing hose pipe’s part number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4642101109 | TRANSMISSION HOUSING | Encloses and supports the gear train and hydraulic components |
| 4642301205 | TRANSMISSION HOUSING | Alternate housing variant for WG150 series |
| 0730365125 | TYPE PLATE | Identifies transmission model and serial number |
| 0631311009 | GROOVED STUD | Secures hose pipe and cooler line connections |
| 4642301168 | SCREEN SHEET | Filters debris from hydraulic fluid |
| 4642301169 | SCREEN SHEET | Fine mesh filter for high-flow circuits |
| 0636100621 | HEXAGON SCREW | Fastens housing and valve body components |
| 4642301186 | SCREEN SHEET | Secondary filter for cooler return line |
| 4644106324 | SHIFT SYSTEM | Controls gear selection and clutch modulation |
| 4644306598 | PLATE | Spacer or cover plate for hydraulic passages |
