ZF 4644.183.104 LOOSE PARTS for WG200 | OEM Genuine Part

Overview

The ZF 4644.183.104 LOOSE PARTS for WG200 is a critical internal component designed to maintain precise hydraulic and mechanical alignment within the WG 200 series transmission. This OEM genuine part, identified by SKU 4644.183.104, functions as a dedicated spacer and alignment kit that secures the clutch pack and valve body assemblies. It sits directly within the main transmission housing, ensuring that all loose components remain properly indexed under high torque loads. Without this part, the transmission’s internal clearances can shift, leading to erratic shifting and premature wear on adjacent assemblies.

Symptoms of Failure

When the ZF 4644.183.104 LOOSE PARTS begins to fail, operators typically notice intermittent gear slipping under load—a common long-tail search query for WG200 transmissions. Another frequent symptom is delayed engagement when shifting from neutral to drive, often accompanied by a harsh clunk. You may also observe fine metallic debris in the transmission fluid during routine changes, indicating that the loose parts have worn against the TRANSMISSION HOUSING. Finally, erratic hydraulic pressure fluctuations on the gauge can point to this component losing its dimensional stability.

Technical Specifications

Compatibility

This part is engineered specifically for the ZF WG 200 series transmissions, including the WG180, WG200, and WG210 variants. It is also compatible with select off-highway and marine applications that utilize the WG200 platform. When replacing this component, always inspect the TRANSMISSION HOUSING for scoring and the COVER PLATE for warpage. Additionally, the O-RING should be replaced simultaneously to prevent fluid bypass.

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