Overview
The ZF 4657.101.046 TRANSMISSION HOUSING is the central structural core of the WG210 series transmission. This OEM genuine part encloses the gear train, valve body, and torque converter assembly, providing precise alignment and load-bearing support under high-torque conditions. Designed as a direct replacement for the original housing, the SKU 4657.101.046 ensures that all internal components remain securely positioned, preventing misalignment that can lead to premature wear. This housing interfaces directly with the HOUS.FRONT SECT (4657201028) and the HOUSING REAR PART (4657201021) to form a complete, sealed transmission casing.
Symptoms of Failure
- External oil leaks around the housing seam: Cracks or porosity in the housing allow transmission fluid to escape, often visible as drips near the bellhousing or rear seal area.
- Gear slipping or delayed engagement: A warped or cracked housing can misalign the valve body and clutch packs, causing intermittent power loss or harsh shifts.
- Excessive drivetrain noise (whining or grinding): Structural fatigue in the housing permits bearing journals to shift, leading to gear mesh noise that worsens under load.
- Contaminated fluid from debris ingress: A compromised housing allows dirt and moisture to enter the transmission, accelerating internal wear and filter clogging.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4657.101.046 |
| Material | Die-cast aluminum alloy (A380) |
| Weight | 12.4 kg (27.3 lbs) |
| Overall Length | 485 mm |
| Overall Width | 320 mm |
| Overall Height | 280 mm |
| OEM Reference | ZF 4657.101.046 |
| Bolt Torque Spec | 45 Nm (33 ft-lbs) |
Compatibility
This housing is engineered for the WG 210 Series transmissions, which include models such as the WG180, WG200, and WG210. It is also compatible with select variants of the WG150 and WG250 series where the mounting flange pattern matches. Always verify the casting number on your original housing before installation. For a complete rebuild, pair this housing with the CYLINDRICAL PIN (0631306792) for dowel alignment and secure it using CAP SCREW (0636100801) fasteners to meet OEM torque specifications.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657201028 | HOUS.FRONT SECT | Front section of the transmission housing |
| 4657201021 | HOUSING REAR PART | Rear section of the transmission housing |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing assembly |
| 0636100801 | CAP SCREW | Fastener for housing bolt pattern |
| 4656301148 | FIXING PLATE | Secures internal components to housing |
| 4657301034 | SCREEN SHEET | Filter screen for oil return circuit |
| 4657301035 | SCREEN SHEET | Secondary filter screen for high-pressure circuit |
| 0636100803 | CAP SCREW | Fastener for valve body attachment |
| 0750301003 | OIL FEED.HOUSG. | Oil feed tube housing adapter |
| 4656301023 | GASKET | Sealing gasket between housing sections |
