ZF 0501.317.192 ORIFICE | OEM Genuine Part

Overview

The ZF 0501.317.192 ORIFICE is a precision-machined hydraulic flow control component engineered for ZF construction machinery transmissions. This OEM genuine part regulates fluid pressure and volume within the valve body assembly, ensuring consistent clutch engagement and lubrication circuit performance. The SKU 0501.317.192 sits directly in the transmission’s hydraulic control module, where it meters oil flow to critical actuation circuits. When paired with a properly functioning 4108101140: HOUSING, this orifice maintains the precise backpressure required for smooth gear shifts under heavy load conditions.

Symptoms of Failure

• Erratic clutch engagement during low-speed maneuvering – A worn 0501.317.192 orifice causes inconsistent hydraulic pressure, leading to jerky starts or hesitation when operating construction equipment in tight spaces.
• Transmission oil overheating under sustained load – Restricted flow through a degraded orifice forces the hydraulic pump to work harder, generating excess heat that accelerates fluid breakdown.
• Delayed forward/reverse shifting in cold weather – A clogged or eroded orifice restricts cold oil flow, causing sluggish gear engagement until the transmission reaches operating temperature.
• Audible whining noise from the valve body area – Cavitation caused by improper orifice metering produces a high-pitched sound, often mistaken for pump failure.

Technical Specifications

Compatibility

This orifice is designed for ZF WG series transmissions commonly used in wheel loaders, telehandlers, and excavators. Confirmed fitment includes ZF WG180, WG200, and WG210 models manufactured after 2008. It also applies to select ZF 4WG-200 and 6WG-200 variants. For proper installation, always verify that the 0501211694: MOTOR and 0501314793: COVER are free from debris. The 0501314799: BUSH should also be inspected for wear during orifice replacement.

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