ZF 4108.121.011 FILTER for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 4108.121.011 FILTER is a critical hydraulic filtration component engineered for the WG100, WG130, and WG131 transmission series. This OEM genuine part sits within the transmission’s lubrication circuit, where it continuously removes particulate contaminants from the oil flow. By maintaining fluid cleanliness, the 4108.121.011 filter protects precision-machined valve bodies, clutch packs, and planetary gearsets from abrasive wear. This SKU is a direct replacement that matches factory specifications, ensuring consistent oil pressure and thermal stability during heavy-duty operations.

Symptoms of Failure

• Erratic gear engagement or delayed shifting – A clogged filter restricts oil flow, causing hesitation when the transmission attempts to shift between forward and reverse gears.
• Whining or humming noise from the transmission sump – As the filter media becomes saturated, the pump works harder to circulate fluid, producing audible cavitation sounds.
• Overheating during prolonged use – Restricted lubrication leads to elevated operating temperatures, which can trigger warning lights or cause the transmission to enter a limp-home mode.
• Visible metallic debris in the oil pan – When the filter fails to capture wear particles, you may notice glitter or sludge during routine fluid changes, indicating internal component damage.

Technical Specifications

Compatibility

This filter is specifically designed for ZF WG-series powershift transmissions. Confirmed compatible models include:

• ZF WG100
• ZF WG130
• ZF WG131
• ZF WG180 (with adapter kit)
• ZF WG200 (with adapter kit)

Always verify your transmission’s housing configuration before installation. The filter mounts directly into the 4108101057 HOUSING or the 4108201177 HOUSING, depending on the model year. During replacement, ensure the 0636302056 SCREW PLUG is torqued to specification to prevent leaks, and inspect the 4108301304 BEARING COVER for any signs of wear that could compromise seal integrity.

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