ZF 0750.147.006 HOSE PIPE for WG181/WG201 | OEM Genuine Part

Overview

The ZF 0750.147.006 HOSE PIPE is a critical fluid transfer component engineered for the WG181 and WG201 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. As a direct replacement, the SKU 0750.147.006 maintains the exact internal diameter and bend radius required for optimal flow dynamics. When installed alongside a robust 4644101203: TRANSMISSION HOUSING, this hose pipe prevents pressure drops that can lead to clutch pack starvation.

Symptoms of Failure

• External hydraulic oil seepage at the hose crimp: Cracks in the rubber reinforcement cause visible fluid loss near the fitting, often mistaken for a housing gasket leak.
• Erratic gear engagement under load: A collapsed internal liner restricts flow, leading to delayed shifts or harsh engagement when the transmission reaches operating temperature.
• Overheating with intermittent slipping: Reduced oil volume from a weeping hose pipe forces the torque converter to work harder, triggering thermal warnings on the dash.
• Whining noise during cold starts: Air ingestion through a degraded hose creates cavitation in the pump, producing a high-pitched sound that fades as the fluid warms.

Technical Specifications

Compatibility

This hose pipe is designed for ZF WG180, WG181, WG200, and WG201 series transmissions used in off-highway vehicles and industrial machinery. It directly replaces the factory line on models with oil-to-air coolers. For installations requiring a new 4644301382: TRANSMISSION HOUSING, always pair this hose with a fresh 0634306198: O-RING and 0634801098: SEALING RING to prevent interface leaks. The 4644301189: THREADED BUSH must be torqued to specification when securing the hose fitting to the housing. A 0636302005: SCREW PLUG is used to seal unused cooler ports on certain WG201 variants.

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