Overview
The ZF 0501.224.480 HOSE PIPE is a critical fluid transfer component engineered for the WG 260 and WG 310 transmission series. This OEM genuine part channels pressurized hydraulic oil between the valve body and the TRANSMISSION HOUSING, ensuring consistent lubrication and clutch actuation pressure. Designed to withstand high thermal loads and continuous vibration, the SKU 0501.224.480 maintains a leak-free seal within the transmission’s internal circuit. Its reinforced construction prevents collapse under peak operating pressures, directly supporting gear engagement stability and heat dissipation.
Symptoms of Failure
- Hydraulic fluid seepage near the transmission pan: A cracked or fatigued hose pipe often causes slow oil drips, leaving visible puddles under the vehicle after extended operation.
- Erratic gear engagement or delayed shifting: When the hose pipe loses internal pressure integrity, the transmission may hesitate before engaging forward or reverse gears.
- Overheating transmission fluid: Restricted flow through a collapsed hose pipe reduces cooling circulation, triggering thermal warning lights or burnt fluid odor.
- Whining or humming noise during acceleration: Air ingress through a damaged hose pipe creates cavitation, producing audible metallic sounds from the pump area.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 0501.224.480 |
| Material | Reinforced synthetic rubber with textile braiding |
| Inner Diameter | 12.7 mm (0.5 in) |
| Outer Diameter | 21.3 mm (0.84 in) |
| Length | 480 mm (18.9 in) |
| Weight | 0.18 kg (0.4 lbs) |
| Operating Pressure | 18 bar (261 psi) max |
| Temperature Range | -40°C to +135°C |
| OEM Reference | ZF 0501.224.480 |
Compatibility
This hose pipe is directly compatible with ZF WG 260 and WG 310 series transmissions used in medium-duty trucks, buses, and construction equipment. It also fits select WG 180 and WG 200 variants where the hydraulic circuit routing matches the 480 mm length. The part integrates with the HOUSING assembly and requires replacement of the O-RING (0634100318) during installation to prevent leaks. For full access, the COVER (4646301355) must be removed to reach the hose pipe mounting points.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4646101194 | TRANSMISSION HOUSING | Main structural casing enclosing all rotating components |
| 4646301360 | HOUSING | Secondary housing for valve body and hydraulic passages |
| 0634100318 | O-RING | Seals hose pipe connections against fluid leakage |
| 4646301355 | COVER | Protective plate securing internal transmission components |
| 4475280016 | SCREW PLUG | Seals threaded ports in the transmission housing |
| 0634303144 | O-RING | Seals screw plug connections |
| 4475280208 | SCREW PLUG | High-pressure port plug for test points |
| 0634316523 | O-RING | Secondary seal for screw plug assemblies |
| 0636100801 | CAP SCREW | Fastener for securing covers and brackets |
| 0631315521 | PIN | Alignment dowel for precise component positioning |
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