ZF 4616.101.111 TRANSMISSION HOUSING for WG65 | OEM Genuine Part

Overview

The ZF 4616.101.111 TRANSMISSION HOUSING is the primary structural casing for the WG65 series, serving as the central mounting point for all internal gear sets, shafts, and valve bodies. This OEM genuine part (SKU: 4616.101.111) encloses the rotating assembly and maintains precise alignment of components under high torque loads. It integrates directly with the main pump housing and supports the torque converter bell housing interface. When replacing this housing, it is critical to also inspect the 4616301304 HOUSING and the 4616301309 HOUSING for wear, as these units form the complete casing assembly. The housing is secured using 0636011118 HEXAGON SCREW fasteners and 0636011038 HEXAGON SCREW bolts, which must be replaced to maintain proper clamping force.

Symptoms of Failure

• External oil seepage from casing seams: Cracks or porosity in the 4616.101.111 housing allow transmission fluid to escape, often visible as wet spots around the bell housing or pan rail. This is a common “ZF WG65 oil leak” issue.
• Gear engagement hesitation or slipping: Warpage or bolt-hole elongation in the housing shifts planetary gear alignment, causing delayed shifts or clutch pack slip under load. Search for “transmission housing warpage symptoms” for related diagnostics.
• Abnormal whining or grinding noise: Bearing bore wear in the housing permits shaft deflection, producing a metallic whine that increases with RPM. This is frequently reported as “ZF WG65 bearing noise” in field service bulletins.
• Torque converter misalignment: A distorted housing flange causes the converter to wobble, leading to pump cavitation and erratic lockup behavior. Technicians often search for “WG65 converter housing crack” when troubleshooting this.

Technical Specifications

Compatibility

This housing is engineered for the ZF WG65 transmission series, but its mounting pattern and oil gallery layout also suit the WG180, WG200, and WG250 models produced after 2012. It is not compatible with the older WG50 or WG60 series due to different bell housing bolt spacing. Always verify the casting number on your original housing before ordering. For complete assembly, pair this unit with the 0636016015 HEXAGON SCREW for the pump mount and the 0631306085 CYLINDRICAL PIN for dowel alignment. Seal integrity is maintained using the 0634313118 O-RING and 0634801152 SEALING RING at the fluid passages.

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