ZF 4644.301.365 TRANSMISSION HOUSING for WG201 | OEM Genuine Part

Overview

The ZF 4644.301.365 TRANSMISSION HOUSING is the primary structural casing for the WG 201 series, serving as the central mounting point for all internal gear sets, shafts, and valve bodies. As an OEM genuine part, this housing ensures precise alignment of the planetary gear train and torque converter assembly within the transmission. The SKU 4644.301.365 is engineered to withstand high torsional loads and thermal expansion, directly supporting the hydraulic circuit integrity. This housing is often replaced in conjunction with the 4644101241 TRANSMISSION HOUSING when performing a full casing overhaul on heavy-duty ZF units.

Symptoms of Failure

• Persistent oil seepage at the bell housing joint: Cracks or warping in the housing allow transmission fluid to escape, leading to low fluid levels and erratic shifting.
• Gear engagement delay or slipping under load: A distorted housing misaligns the clutch packs, causing intermittent power loss during acceleration.
• Metallic debris in the oil pan: Internal fractures shed aluminum particles into the fluid, which can clog the 4644301352 SCREEN SHEET and damage bearings.
• Vibration or whining noise from the transmission center: Housing flex alters shaft concentricity, producing audible noise at specific RPM ranges.

Technical Specifications

Compatibility

This housing is specifically designed for the ZF WG 201 series transmissions. It is also compatible with the WG180 and WG200 models when using the appropriate adapter kits. The part fits all WG201 variants produced after 2005, including the WG201-6 and WG201-8 configurations. For proper sealing, always install a new 0634801088 SEALING RING and 0636305019 SCREW PLUG during reassembly. The 0730365067 TYPE PLATE must be transferred or replaced to maintain identification compliance.

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