Overview
The ZF 1232.304.055 SHIM is a precision-engineered spacer component designed specifically for the WG150 series transmission. This OEM genuine part ensures correct axial clearance between rotating assemblies and stationary housings within the gear train. By maintaining exacting tolerances, the shim prevents unwanted metal-on-metal contact that can lead to premature wear. The SKU 1232.304.055 is a factory-original ZF component, guaranteeing dimensional accuracy and material integrity for critical load-bearing applications in heavy-duty industrial transmissions.
Symptoms of Failure
When the ZF 1232.304.055 shim wears or becomes damaged, operators may notice specific performance issues. Excessive end-play in the output shaft is a primary indicator, often felt as a clunk during gear engagement. Low-frequency vibration at cruising speeds can develop as bearing preload is lost. Metallic debris in the transmission oil filter signals that the shim surface is eroding. Finally, intermittent gear slipping under load may occur as internal clearances shift beyond design limits.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 1232.304.055 |
| Material | Case-hardened steel (DIN 1.3505 equivalent) |
| Thickness | 0.55 mm |
| Outer Diameter | 68.0 mm |
| Inner Diameter | 42.0 mm |
| Weight | 18 g |
| OEM Reference | ZF 1232.304.055 |
| Surface Finish | Ground, Ra ≤ 0.4 µm |
Compatibility
This shim is engineered for the ZF WG150 series transmission family. It is also compatible with the WG180 and WG200 models where similar planetary gearset clearances are specified. The part fits directly into the output shaft bearing pocket and interfaces with the TRANSMISSION HOUSING (4642101109) and the TRANSMISSION HOUSING (4642301205). During rebuilds, always verify the TYPE PLATE (0730365125) for exact model identification, and secure the assembly with the GROOVED STUD (0631311009).
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4642101109 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4642301205 | TRANSMISSION HOUSING | Secondary housing for clutch pack section |
| 0730365125 | TYPE PLATE | Identification plate with model and serial number |
| 0631311009 | GROOVED STUD | Fastener for housing alignment and torque retention |
| 4642301168 | SCREEN SHEET | Oil filter mesh for debris protection |
| 4642301169 | SCREEN SHEET | Fine-mesh filter for hydraulic circuit |
| 0636100621 | HEXAGON SCREW | M10 bolt for valve body attachment |
| 4642301186 | SCREEN SHEET | Suction strainer for oil pump intake |
| 4644159321 | SHIFT SYSTEM | Complete shift fork and actuator assembly |
| 4644306565 | VALVE HOUSING | Hydraulic control manifold for clutch modulation |
