Overview
The ZF 0501.224.458 HOSE PIPE is a critical fluid conduit engineered specifically for the WG 260 and WG 310 transmission series. This OEM genuine part channels pressurized hydraulic oil between the valve body and the clutch pack assembly, ensuring consistent lubrication and cooling within the gear train. As a direct replacement for the SKU 0501.224.458, this hose pipe maintains the exact internal diameter and bend radius required to prevent flow restriction. It works in tandem with the 4646101194: TRANSMISSION HOUSING to create a sealed hydraulic circuit, and its rigid construction resists collapse under high-temperature operating conditions.
Symptoms of Failure
When the 0501.224.458 hose pipe degrades, operators typically notice these specific failure modes:
- External hydraulic oil seepage at the crimped fitting ends, often mistaken for a housing gasket leak.
- Delayed gear engagement or soft shifts due to reduced line pressure from internal hose wall delamination.
- Transmission overheating caused by restricted oil flow, which accelerates wear on the 4646301360: HOUSING bearing surfaces.
- Audible whining noise during acceleration, indicating cavitation from a collapsed hose section.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 0501.224.458 |
| Material | Reinforced synthetic rubber with braided polyester |
| Length | 320 mm (center-to-center of fittings) |
| Inner Diameter | 12.7 mm (1/2 inch) |
| Operating Pressure | 18 bar (260 psi) max |
| Temperature Range | -40°C to +135°C |
| Weight | 0.18 kg |
| OEM Reference | ZF 0501.224.458 |
Compatibility
This hose pipe is a direct fit for the ZF WG 260 and WG 310 series transmissions, commonly found in medium-duty trucks and construction equipment. It also cross-references to select WG 180 and WG 200 models where the hydraulic circuit layout matches. Always verify the routing path against your existing 4646301355: COVER to ensure proper clearance. The 0634100318: O-RING should be replaced simultaneously to guarantee a leak-free seal at the connection port.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4646101194 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4646301360 | HOUSING | Secondary housing for valve body section |
| 0634100318 | O-RING | Seal for hose pipe connection port |
| 4646301355 | COVER | Access cover for hydraulic circuit inspection |
| 4475280016 | SCREW PLUG | Threaded plug for pressure test port |
| 0634303144 | O-RING | Seal for screw plug 4475280016 |
| 4475280208 | SCREW PLUG | Drain plug for housing cavity |
| 0634316523 | O-RING | Seal for drain plug 4475280208 |
| 0636100801 | CAP SCREW | Fastener for cover attachment |
| 0631315521 | PIN | Alignment dowel for housing positioning |
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