ZF 4657.199.072 LOOSE PARTS for WG210 | OEM Genuine Part

Overview

The ZF 4657.199.072 LOOSE PARTS kit is a critical service package designed specifically for the WG 210 series transmission. This genuine OEM assembly contains the essential small components—including seals, retaining rings, and precision spacers—that secure and align internal hydraulic circuits within the gear train. Positioned directly between the main housing and the front section, this kit ensures proper oil flow and mechanical stability during high-torque operations. The SKU 4657.199.072 is factory-matched to ZF’s original tolerances, eliminating guesswork during rebuilds. When paired with a new TRANSMISSION HOUSING, this loose parts set restores the transmission’s internal clearances to factory specifications.

Symptoms of Failure

• Intermittent gear slipping under load: Worn loose parts cause misalignment of the clutch pack, leading to power loss during acceleration or hill climbing.
• Low hydraulic pressure at the test port: Degraded sealing elements within the 4657.199.072 kit allow internal fluid bypass, triggering pressure drops below 8 bar.
• Metallic debris in the oil pan: Fractured spacers or pins shed fine steel particles into the lubrication circuit, often visible during routine oil changes.
• Hard shifting between 2nd and 3rd gear: Loose retaining components cause the shift valve to stick, producing delayed engagement and harsh shifts.

Technical Specifications

Compatibility

This loose parts kit is engineered for the ZF WG 210 series, but its design shares dimensional standards with several other ZF off-highway transmissions. It is directly compatible with the WG 180, WG 200, and WG 210 models. The kit also fits select WG 160 and WG 250 variants when used with the corresponding HOUS.FRONT SECT and HOUSING REAR PART. For proper installation, always verify that the CYLINDRICAL PIN aligns with the dowel holes in the housing.

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