Overview
The ZF 0501.224.461 HOSE PIPE is a critical fluid transfer component 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 cooler circuit, ensuring consistent lubrication and thermal regulation within the gearbox. The SKU 0501.224.461 is designed to withstand high-temperature oil flow and vibration fatigue, making it a direct replacement for worn assemblies. When paired with a properly sealed TRANSMISSION HOUSING, this hose pipe maintains the integrity of the entire hydraulic loop.
Symptoms of Failure
- External transmission oil leaks near the cooler lines: A cracked or swollen hose pipe often drips fluid onto the bell housing, leaving visible puddles under the vehicle.
- Erratic gear engagement or delayed shifting: Insufficient hydraulic pressure from a compromised hose pipe causes slipping between clutch packs, especially under load.
- Overheating transmission fluid: Restricted flow through a collapsed hose pipe reduces cooling capacity, triggering warning lights or burnt fluid odor.
- Audible whining or cavitation noise: Air ingestion through a split hose pipe creates a high-pitched sound during acceleration.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0501.224.461 |
| Material | Reinforced synthetic rubber with textile braid |
| Length (overall) | 385 mm |
| Inner Diameter | 12.7 mm (1/2 inch) |
| Weight | 0.28 kg |
| Operating Pressure | Up to 18 bar |
| Temperature Range | -40°C to +150°C |
| OEM Reference | ZF 0501.224.461 |
Compatibility
This hose pipe is factory-specified for the ZF WG 260 and WG 310 series transmissions, commonly found in medium-duty trucks, buses, and construction equipment. It also retrofits to earlier WG 180 and WG 200 models where the cooler circuit uses a 12.7 mm banjo fitting. Always verify the routing against your existing HOUSING to confirm clearance. For leak-free installation, replace the O-RING at both connection points and inspect the COVER for corrosion before reassembly.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4646101194 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4646301360 | HOUSING | Secondary housing for valve body |
| 0634100318 | O-RING | Seals hose pipe to housing ports |
| 4646301355 | COVER | Protects clutch pack access area |
| 4475280016 | SCREW PLUG | Closes unused hydraulic ports |
| 0634303144 | O-RING | Seals screw plug 4475280016 |
| 4475280208 | SCREW PLUG | Alternate port plug for cooler circuit |
| 0634316523 | O-RING | Seals screw plug 4475280208 |
| 0636100801 | CAP SCREW | Fastens housing cover |
| 0631315521 | PIN | Alignment dowel for housing assembly |
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