ZF 4143.000.182 2 HL 100 Hydrostatic Drive Assembly | Complete Unit

Overview

The ZF 4143.000.182 2 HL 100 Hydrostatic Drive Assembly is a complete, factory-sealed unit designed to manage variable speed and torque output in heavy-duty industrial transmissions. This assembly integrates the pump and motor into a single, compact housing, converting hydraulic pressure into mechanical power for precise vehicle or machine control. As a core component of the HL 100 and HL 270 series, the SKU 4143.000.182 replaces the entire drive assembly, ensuring seamless power transfer and eliminating the need for individual component repairs. This unit is critical for maintaining operational efficiency in wheel loaders, forklifts, and agricultural equipment where continuous, reliable hydrostatic performance is non-negotiable.

Symptoms of Failure

• Hydrostatic drive slipping under load: When the 4143.000.182 assembly wears, internal pistons or valve plates lose sealing capacity, causing the machine to lose power or speed during heavy lifting or climbing.
• Chronic oil leaks from the housing interface: Degraded seals or housing cracks around the 4143101009: HOUSING or 4143301025: HOUSING lead to visible fluid loss, often pooling beneath the transmission.
• Erratic or jerky motion during acceleration: Worn internal components cause pressure spikes or cavitation, resulting in sudden lurches or hesitation when engaging the drive.
• Overheating of the transmission fluid: Internal bypassing due to a failing hydrostatic unit generates excessive heat, triggering warning lights or reduced system efficiency.

Technical Specifications

Compatibility

This hydrostatic drive assembly is engineered for ZF transmissions that utilize the HL 100 or HL 270 series architecture. It is directly compatible with the WG180, WG200, and WG210 transmission models, commonly found in mid-size wheel loaders and telescopic handlers. The unit also fits select WG150 and WG160 variants where the 2 HL 100 pump configuration is specified. Always verify the housing interface using the 4143101009: HOUSING and 4143301025: HOUSING components to ensure proper alignment with your transmission case.

Related Components