ZF 4657.101.056 TRANSMISSION HOUSING for WG210 | OEM Genuine Part

Overview

The ZF 4657.101.056 TRANSMISSION HOUSING is a critical structural component engineered specifically for the WG210 series. As the main casing, it encloses the planetary gear sets, valve body, and torque converter assembly, providing precise alignment and oil-tight integrity under high-torque loads. This OEM genuine part (SKU: 4657.101.056) ensures that all internal rotating elements remain properly spaced, preventing axial misalignment and maintaining hydraulic pressure. It interfaces directly with the 4657201151: HOUS.FRONT SECT and the 4657201153: HOUSING REAR PART to form a complete, sealed assembly.

Symptoms of Failure

• External oil seepage at the main case seam: When the housing warps or develops micro-cracks, transmission fluid escapes around the mating surfaces, often mistaken for a pan gasket leak.
• Persistent gear hunting or delayed engagement: A distorted housing causes valve body misalignment, leading to erratic shift timing and “slipping” between 2nd and 3rd gear in the WG210.
• Abnormal whining or grinding noise under load: Bearing bore wear within the housing allows shaft deflection, producing a metallic chatter that intensifies during acceleration.
• Contaminated fluid with metallic debris: Internal fretting from a cracked housing releases aluminum particles into the oil, visible during routine drain intervals.

Technical Specifications

Compatibility

This housing is primarily designed for the ZF WG210 series, but it also fits select variants of the WG180, WG200, and WG220 transmissions produced after 2012. It is not backward-compatible with the older WG150 series without modification. Always verify the casting number on your original housing before ordering. The housing mates with the 4657298093: HOUSING REAR SECTION and is secured using the 0631306816: CYLINDRICAL PIN for precise dowel alignment during reassembly.

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