Overview
The ZF 4657.298.093 HOUSING REAR SECTION is a critical structural component designed for the WG210 series transmission. This OEM genuine part encloses the rear planetary gear set and output shaft assembly, providing precise alignment and load-bearing support within the transmission casing. As the rear section of the housing, it seals the transmission’s internal hydraulic circuits and rotating components, ensuring proper oil flow and mechanical stability. The SKU 4657.298.093 is manufactured to ZF’s exacting tolerances, making it a direct replacement for worn or damaged units in heavy-duty commercial vehicle transmissions.
Symptoms of Failure
- Rear transmission oil leaks – A cracked or warped housing rear section often causes fluid seepage around the output flange, leading to low oil levels and potential gear damage.
- Gear slipping under load – When the housing rear section loses structural integrity, misalignment of the planetary carrier can cause intermittent power loss during acceleration or hill climbing.
- Unusual whining or grinding noises – Bearing wear due to housing distortion produces metallic sounds from the rear of the transmission, especially at highway speeds.
- Vibration at the driveshaft connection – A compromised rear housing can allow the output shaft to wobble, creating driveline shudder during gear changes.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4657.298.093 |
| Material | High-strength aluminum alloy (A356-T6) |
| Weight | 4.8 kg (10.6 lbs) |
| Dimensions (L x W x H) | 320 mm x 240 mm x 180 mm |
| OEM Reference | ZF 4657.298.093 |
| Bolt Torque Spec | 45 Nm ± 5 Nm |
Compatibility
This housing rear section is engineered for the ZF WG210 series transmission, commonly found in municipal trucks, fire apparatus, and construction vehicles. It is also compatible with the WG180, WG200, and WG250 models that share the same rear housing bolt pattern and output shaft configuration. Always verify your transmission’s serial number before installation.
During replacement, technicians often install this part alongside the 4657101056 TRANSMISSION HOUSING to ensure the entire casing assembly is renewed. The 4657201151 HOUS.FRONT SECT and 4657201153 HOUSING REAR PART complete the housing trio, while the 0631306816 CYLINDRICAL PIN ensures precise alignment during assembly.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101056 | TRANSMISSION HOUSING | Main casing for gear train |
| 4657201151 | HOUS.FRONT SECT | Front section of housing assembly |
| 4657201153 | HOUSING REAR PART | Alternate rear housing variant |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing sections |
| 0636100801 | CAP SCREW | Fastener for housing bolts |
| 4656301148 | FIXING PLATE | Secures housing to transmission |
| 4657301032 | SCREEN SHEET | Oil filter screen (fine mesh) |
| 4657301033 | SCREEN SHEET | Oil filter screen (coarse mesh) |
| 0636100803 | CAP SCREW | High-torque housing fastener |
| 4656301048 | OIL FEED.HOUSG. | Lubrication channel for bearings |
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