ZF 5838.300.222 LUBRICATION TUBE | OEM Genuine Part

Overview

The ZF 5838.300.222 LUBRICATION TUBE is a critical fluid delivery component engineered for heavy-duty construction machinery transmissions. Positioned within the upper valve body assembly of ZF power shift transmissions, this OEM genuine part ensures precise oil flow to high-friction zones, including planetary gear sets and clutch packs. The SKU 5838.300.222 directs pressurized lubricant to the 5838022003: REAR AXLE and the 5838109001: DIFFERENTIAL, preventing metal-on-metal contact during high-torque operations. Without this tube, the transmission cannot maintain proper hydraulic pressure, leading to accelerated wear on internal assemblies.

Symptoms of Failure

• External oil seepage at transmission housing – Cracks or corrosion in the 5838.300.222 tube cause fluid to escape, visible as drips near the bell housing or PTO cover.
• Intermittent gear slippage under load – Insufficient lubrication to the 0750117075: TAPER ROLLER BEARING results in momentary loss of torque transfer when climbing grades.
• Elevated operating temperatures – A blocked or collapsed tube starves the 5838300128: DIFFERENTIAL HOUSING of cooling oil, triggering thermal alarms on the dashboard.
• Metallic debris in oil filter – Abrasive wear particles from dry-start conditions indicate the tube is failing to deliver initial lubrication.

Technical Specifications

Compatibility

This lubrication tube is designed for ZF WG180, WG200, and WG250 series transmissions commonly found in wheel loaders, graders, and excavators. It also fits select ZF Ergopower and Ecolife models used in agricultural tractors. The 5838.300.222 interfaces directly with the main control valve block and routes oil to the 5838300128: DIFFERENTIAL HOUSING and associated axle assemblies. Always verify your transmission serial number before ordering.

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