ZF 2095.347.026 T-PIPE UNION | OEM Genuine Part

Overview

The ZF 2095.347.026 T-PIPE UNION is a critical OEM genuine hydraulic fitting engineered for high-pressure fluid routing within ZF powershift transmissions. This component serves as a junction point in the lubrication and cooling circuit, directing oil flow between the transmission housing and external cooler lines. As an integral part of the hydraulic network, the T-PIPE UNION (SKU: 2095.347.026) ensures consistent pressure delivery to key assemblies such as the 5838109021: DIFFERENTIAL and the 2095209019: DIFFERENTIAL. Without this union, the transmission cannot maintain proper lubrication, leading to accelerated wear on internal components.

Symptoms of Failure

• Hydraulic fluid seepage at the T-junction: When the 2095.347.026 union cracks or its O-ring degrades, oil leaks develop around the pipe connection, often visible as drips under the transmission housing.
• Erratic gear engagement or slipping: A compromised union reduces line pressure, causing delayed clutch pack actuation. This is frequently accompanied by harsh shifting in WG-series transmissions.
• Overheating transmission fluid: Restricted flow through a damaged T-PIPE UNION starves the cooler circuit, causing the oil temperature to spike above 120°C during normal operation.
• Whining noise from the pump: Air ingestion through a cracked union creates cavitation, producing a high-pitched whine that worsens under load.

Technical Specifications

Compatibility

This T-PIPE UNION is designed for ZF powershift transmissions in the WG series, specifically models WG180, WG200, and WG210 used in construction machinery such as wheel loaders, graders, and telehandlers. It also fits select ERGOPOWER and ECOMIX transmissions from the same generation. For differential assemblies requiring this union, verify compatibility with the 0750117075: TAPER ROLLER BEARING and the 0631329086: SPRING PIN, which are commonly replaced during the same service interval.

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