ZF 4644.138.016 FILTER for WG 180/WG 200 | OEM Genuine Part

Overview

The ZF 4644.138.016 FILTER is a critical hydraulic filtration component engineered for the WG 180 and WG 200 series transmissions. Positioned within the transmission’s lubrication circuit, this OEM genuine part ensures that hydraulic fluid remains free of contaminants, protecting internal valve bodies and clutch packs from abrasive wear. As a direct replacement for the WG 201 Series, this filter (SKU 4644.138.016) maintains optimal oil flow and system pressure, directly supporting the longevity of adjacent assemblies such as the 4644101172: TRANSMISSION HOUSING and the 4644301390: TRANSMISSION HOUSING.

Symptoms of Failure

• Erratic gear engagement or slipping: A clogged filter restricts oil flow, causing delayed or harsh shifts, especially under load.
• Whining or humming noise from the transmission: Reduced lubrication leads to increased friction and audible pump strain.
• Overheating transmission fluid: Contaminated oil cannot dissipate heat effectively, triggering thermal warnings.
• Visible debris in the oil pan: Metal particles or sludge bypassing a degraded filter indicate imminent internal damage.

Technical Specifications

Compatibility

This filter is designed for ZF WG 180 and WG 200 series transmissions, including the WG 201 variant. It is also compatible with select WG 160 and WG 210 models that share the same hydraulic circuit architecture. For proper sealing during installation, pair this filter with the 0634306198: O-RING and the 0634801098: SEALING RING. The assembly is secured using the 0636302005: SCREW PLUG and the 4644301189: THREADED BUSH to ensure leak-free operation.

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